mikroElektronika EasyMx PRO v7 User Manual

USER'S GUIDE

EasyMx PRO

for STM32® ARM

®

v7

Many on-board modules

Multimedia peripherals

Easily add extra boards

mikroBUS™ sockets

Four connectors for each port

Amazing Connectivity

Fast USB 2.0 programmer and

In-Circuit Debugger

microcontrollers supported

The ultimate STM32® board

EasyMx PRO™ v7 for STM32® is our rst development board for STM32® devices. We have put all of

our knowledge that we gained in the past 10 years of developing embedded systems into it's design,

functionality and quality. It may be our rst STM32® development board, but it sure looks and feels like

it's our 7th.

You made the right choice. But the fun has only just begun!

To our valued customers

Nebojsa Matic,

Owner and General Manager

of mikroElektronika

Table of contents

page 3

DS1820 - Digital Temperature Sensor . . . . . . . . . . . . . .

TFT display 320x240px . . . . . . . . . . . . . . . . . . . . . . . . . . .

Audio Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

2

C EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installing programmer drivers . . . . . . . . . . . . . . . . . . . . . .

Navigation switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

LM35 - Analog Temperature Sensor . . . . . . . . . . . . . . . .

Touch panel controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

microSD card slot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

It's good to know . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ADC inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Programming software . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Serial Flash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

On-board programmer . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

List of MCUs supported with mikroProg™ . . . . . . . . . .

Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Default MCU card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Other supported MCU cards . . . . . . . . . . . . . . . . . . . . . . .

GLCD 128x64 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Piezo Buzzer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Power Supply

Supported MCUs

Programmer/debugger

Multimedia

Other Modules

Communication

34

30

28

04

37

14

33

35

31

29

05

38

15

Hardware Debugger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

36

12

13

06

08

11

32

39

Input/Output Group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

mikroBUS

™

sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Click

™

Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connectivity

18

20

21

USB-UART A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

USB-UART B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

USB HOST communication . . . . . . . . . . . . . . . . . . . . . . . . .

USB device communication . . . . . . . . . . . . . . . . . . . . . . . .

Ethernet communication . . . . . . . . . . . . . . . . . . . . . . . . . .

CAN communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

23

24

25

26

27

Additional GNDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40

EasyMx PRO

v7

Introduction

introduction

page 4

ARM® Cortex™-M3 and Cortex™-M4 are increasingly popular

microcontrollers. They are rich with modules, with high performance and

low power consumption, so creating a development board the size of

EasyMx PRO™ v7 for STM32® was really a challenge. We wanted to put

as many peripherals on the board as possible, to cover many internal

modules. We have gone through a process of ne tuning the

board's performance, and used 4-layer PCB to achieve maximum

eciency. Finally, it had met all of our expectations, and even

exceeded in some. We present you the board which is powerful,

well organized, with on-board programmer and debugger and

is ready to be your strong ally in development.

EasyMx PRO™ v7 development Team

EasyMx PRO™ v7 for STM32® is
all about connectivity. Having

two dierent connectors for

each port, you can connect
accessory boards, sensors and
your custom electronics easier
then ever before.

Powerful on-board mikroProg

™

programmer and hardware
debugger can program and
debug over 180 STM32®
ARM® microcontrollers. You
will need it, whether you are a
professional or a beginner.

Two connectors for each port Everything is already here

Amazing connectivity mikroProg™ on board

TFT 320x240 with touch panel,
stereo mp3 codec, audio input
and output, navigation switch
and microSD card slot make a
perfect set of peripherals for
multimedia development.

Ready for all kinds of development

Multimedia peripherals

Just plug in your Click™ board,

and it’s ready to work. We picked

up a set of the most useful pins
you need for development and
made a pinout standard you will
enjoy using.

For easier connections

mikroBUS™ support

EasyMx PRO

v7

It's good to know

Package contains

introduction

page 5

System Specication

STM32F107VCT6 is the default microcontroller

power supply

7–23V AC or 9–32V DC
or via USB cable (5V DC)

board dimensions

266 x 220mm (10.47 x 8.66 inch)

weight

~500g (1.1 lbs)

power consumption

~76mA when all peripheral
modules are disconnected

Damage resistant
protective box

EasyMx PRO™ v7 for STM32®
board in antistatic bag

USB cable User Manuals and

Board schematics

DVD with examples
and documentation

1 2 3 4 5

STM32F107VCT6 is the default chip of

EasyMx PRO™ v7 for STM32®. It belongs to ARM®

Cortex™-M3 family. It has 72MHz frequency, 256K

bytes of Flash memory, 64K bytes of general

purpose SRAM, integrated Ethernet controller,

USB 2.0 (OTG, Host, Device), 80 General purpose

I/O pins (mappable on 16 external interrupt),

4x16-bit timers, 2x12-bit A/D (16 channels),

2x12-bit D/A , 5xUARTs, internal Real time clock

(RTC), 2xI2C, 3xSPI and 2xCAN controllers. It has

Serial wire debug (SWD) and JTAG interfaces for

programming and debugging.

- Great choice for both beginners

and professionals

- Rich with modules

- Comes with examples for mikroC,

mikroBasic and mikroPascal compilers

Copyright ©2011 Mikroelektronika.

All rights reserved. Mikroelektronika, Mikroelektronika logo and other

Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

Power supply

Board contains switching power

supply that creates stable voltage

and current levels necessary

for powering each part of

the board. Power supply
section contains specialized

MC33269DT3.3 power regulator

which creates VCC-3.3V power supply,

thus making the board capable of supporting

3.3V microcontrollers. Power supply unit can be

powered in three dierent ways: with USB power supply

(CN20), using external adapters via adapter connector (CN30)

or additional screw terminals (CN31). External adapter voltage levels

must be in range of 9-32V DC and 7-23V AC. Use jumper J9 to specify

which power source you are using. Upon providing the power using either external

adapters, or USB power source, you can turn on power supply by using SWITCH 1 (Figure

3-1). Power LED (Green ON) will indicate the presence of power supply.

Figure 3-1: Power supply unit of EasyMx PRO

™

v7 STM32®

8

7

6

5

C38
100nF

VCC-5V

2

1

3

GND

Vout

Vin

REG1

MC33269DT3.3

E16

10uF

3.3V VOLTAGE REGULATOR

VCC-3.3V

E17

220uF/35V

C37
100nF

J9

D3

1N4007

D4

1N4007

D5

1N4007

D6

1N4007

CN30

CN31

VCC-5V

POWER

R68
2K2

LD78

E18
220uF/35V

E19

220uF/35V

1

2

3

4

SWC

SWE

CT

GND

DRVC

IPK

VIN

CMPR

U8

MC34063A

R69

0.22

R74
3K

VCC-SW

C39
220pF

D7

MBRS140T3

L1 220uH

VCC-EXT

R76
1K

VCC-5V

213

SWITCH1

VCC-USB

VCC-SW

+ -

5V SWITCHING POWER SUPPLY

1

2

3

4

VCC

GND

CN20

USB B

VCC-USB

FP1

C5
100nF

power supply

page 6

EasyMx PRO

v7

Figure 3-2:
Power supply
unit schematics

How to power the board?

To power the board with USB cable, place jumper J9
in USB position. You can then plug in the USB cable
as shown on images

1

and 2, and turn the power

switch ON.

To power the board via adapter connector, place jumper
J9 in EXT position. You can then plug in the adapter
cable as shown on images

3

and 4, and turn the

power switch ON.

To power the board using screw terminals, place jumper
J9 in EXT position. You can then screw-on the cables in
the screw terminals as shown on images

5

and 6,

and turn the power switch ON.

Board power supply creates stable 3.3V necessary for
operation of the microcontroller and all on-board modules.

Power supply: via DC connector or screw terminals

(7V to 23V AC or 9V to 32V DC),
or via USB cable (5V DC)

Power capacity: up to 500mA with USB, and up to 600mA
with external power supply

Set J9 jumper to
USB position

1. With USB cable

3. With laboratory power supply

Set J9 jumper to
EXT position

Set J9 jumper to
EXT position

2. Using adapter

1

3

5

2

4

6

power supply

page 7

EasyMx PRO

v7

supported MCUs

page 8

EasyMx PRO

v7

Default MCU card

Microcontrollers are supported using specialized MCU cards containing 104 pins,
which can be placed into the on-board female MCU socket. There are several types
of cards which cover all microcontroller families of STM32® Cortex

™

-M3, as well as

Cortex

™

-M4. The Default MCU card that comes with the EasyMx PRO™ v7 for STM32®

package is shown on Figure 4-1. It contains STM32F107VCT6 microcontroller with
on-chip peripherals and is a great choice for both beginners and professionals. After

testing and building the nal program, this card can also be taken out of the board
socket and used in your nal device.

STM32F107VCT6 is the default chip of EasyMx PRO

™

v7. It has 72MHz
frequency, 256K bytes of Flash memory, 64K bytes of general-purpose
SRAM, integrated Ethernet controller, USB 2.0 (OTG, Host, Device), 80 General
purpose I/O pins (mappable on 16 external interrupt), 4x16-bit timers, 2x12-
bit A/D (16 channels), 2x12-bit D/A , 5xUARTs, internal Real time clock (RTC),
2xI2C, 3xSPI and 2xCAN controllers.

25MHz crystal oscillator. We carefully chose the most convenient crystal

value that provides clock frequency which can be used directly, or with the PLL
multipliers to create higher MCU clock value. MCU card also contains 32.768 kHz
crystal oscillator which provides external clock for RTCC module.

USB communications lines. These two jumpers, when in USB position,

connect D+ and D- lines of the on-board USB connector with PA11 and PA12
microcontroller pins. Since STM32F107VCT6 supports USB, jumpers are in USB
position.

2

4

3

1

1

2

3

4

Figure 4-1: Default MCU card with STM32F107VCT6

Ethernet transceiver. Default MCU card contains single-chip Ethernet physical

(PHY) layer transceiver which provides additional Ethernet functionality to
STM32F107VCT6 controller

5

With STM32® Cortex™-M3 and Cortex™-M4 microcontrollers you have the
ability to select specic boot space (User ash memory, system memory

or embedded SRAM), depending on the boot pins value (BT0, PB2). Boot
pins are set to ground (0) through 100K resistors. In order to set BT0 and
PB2 pins to VCC (1), you must push SW11.1 and SW11.2 DIP switches to
ON position, Figure 4-2. The values on the BOOT pins are latched on the
fourth rising edge of system clock after a reset.

page 9

EasyMx PRO

v7

302928

27

34

33

58

57

56

55

54

53

52

46

36

35

424344

45

37

50948

49

11

12

32

72

69

68

67

66

65

64

63

4
3

78

77

24
23

18
17
16
15
14
13

5

6

7

8

10

79

80

1

2

22
21
20
19

62

61

60

59

38

39

40

41

47

71

31

51

70

26

25

76

75

74

73

81

828384

85

86

878889

90

91

929394

959697

98

99

00

E3
10uF

VCC

E4
10uF

VCC

E1
10uF

VCC

E2
10uF

VCC

27

28

29

30

31

323334

353637383940414243444546474849 50

51 52

HD2

7980

8182

8384

85

86

8788

8990

9192

939495

96

9798

99

100

101102

103

104

HD3

1 2
3 4
5 6
7 8

9 10
11 12
13 14
15 16
17 18
19 20
21 22
23 24
25 26

HD1

5354

5556

5758

5960

6162

6364

6566

6768

6970

7172

7374

7576

7778

HD4

VCC GND

VCC GND

VCC GND

Vbat

VCCGND

VCCGND

VCCGND

VCCGND

C1
100nF

VCC

C2
100nF

VCC

C3
100nF

VCC

C4
100nF

VCC

C5
100nF

VCC

C6
100nF

VCC

C7
100nF

VREF

VCC

OSC_IN

OSC_OUT

X1

25MHz

C11
22pF

C10
22pF

X2

32.768KHz

C8
22pF

C9
22pF

STM32F107VCT6

1

PE11

PE10

PE6

VBAT

PC13/TAMPER_RTC

PC14/OSC32_IN

PA10

PA9

PA8

PD9

PE13

PE12

PB13
PB14
PB15
PD8

PE14

PE15

PB5

PB4

PB3

PB7

PD7

PD6

PE5
PE4

PE1

PE0

PB9

PB8

BOOT0

PB6

OSC_IN

PA0-WKUP

VDDA

VREF+

VREF-

GNDA

PC3

PA12

PA11

PB12

PC8

NRST

VDD
GND

PE7

GND

VDD

PE2

PE3

PA2
PA1

GND

VDD

PC9

PD13

PB10

PB11

PD10

PE8

PB2

PD11

PD14

PD5

PC2
PC1
PC0

PB1

PE9

PD12

PC7

OSC_OUT

PC15/OSC32_OUT

PD15
PC6

PA13

PC10

PA14

NC
GND
VDD

PA15

PC11

PC12

PD0

PA6

PA5

PC4

PA7

PC5

PB0

GND

VDD

PA3

PA4

PD1

PD2

PD3

PD4

U1

OSC32_IN

OSC32_OUT

RST#

PE2

PE3

PE4

PE5

PE6

PC0

PC2

PC3

PA0

MCO

PA3

PA4

PA5

PA6

PA7

PC4

PC5

PC6
PC7
PC8
PC9

VREF

PB0

PB1

PB2

PE7

PE8

PE9

PE10

PE11

PE12

PE13

PE14

PE15

PB11

PB12
PB13
PB14_nINT

PD8
PD9
PD10
PD11
PD12
PD13
PD14
PD15

PA9
PA10

PA13

PA14

PA15

PD0

PD1

PD2

PD3

PD4

PD5

PD6

PD7

PB3

PB4

PB5

PB6

PB7

PB8

PB9

BT0

PE0

PE1

PC13

R1 100K

PA11/DM

PA12/DP

PA11

PA12

DM

DP

J2

J3

DMDP

PA11/DM
PA12/DP

2
3
4
5
6

7

11

12

13

14

242322

21

18
17
16
15

8

1

19

9

10

20

VDD2A

LED1

LED2

XTAL2
XTAL1
VDDCR

RXD1

RXD0

VDDIO

RXER

CRS_DV

MDIO

MDC

nINT

RST#

TXEN

TXD0

TXD1

TXP

RXP

Rbias

RXN

TXN

VDD1A

LAN8720A

GND

U2

TXP

TXN

RXP

RXN

R2

12K1

FP1

VCC

LED1

LED2

LED1 LED2

TXD1
TXD0
TXEN
RST#

PB14_nINT

RXD1

RXD0

CRS_DV

TXD1
TXD0
TXENPC1_MDC

RXD1
RXD0

PB10_RXE R

CRS_DV

PA2_MDIO

C13
100nF

C12

2.2uF

R3 1K5

VCC

R4 27
R5 27
R6 27
R7 27
R8 27
R9 27

PC4

PC5

PB10_RXE R

PC1_MDC

PA2_MDIO

PA7
PB13
PB12
PB11

MCO

MCO

R10
10K

C14

100nF

PC6PC7
PC8PC9

SPI_MOSI

PD8PD9
PD10PD11
PD12PD13
PD14PD15

PA9PA10

PA13

PA11PA12

PA14

PA15

PD0PD1

PD2PD3

PD4PD5

PD6PD7

PB3 PB4

PB5 PB6

PB7

PB8PB9
BT0

PE0PE1

PA3

PA4 PA5

PA6

PB0 PB1

PB2 PE7

PE8 PE9

PE10 PE11

PE12 PE13

PE14 PE15

RST#

PE2PE3

PE4PE5

PE6

PC0

PC2

PC3

PA0

VREF

PC13

TXPTXN

RXPRXN

Vbat

R11 100K

SPI_MOSI

SPI_SCK

SPI_MISO

SPI_SCK

SPI_MISO

Figure 4-2: Default MCU card and boot conguration schematics

supported MCUs

5354

5556

5758

5960

6162

6364

6566

6768

6970

7172

7374

7576

7778

7980

8182

83848586

8788

89

90

9192

9394

E8
10uF

VCC-3.3V

VCC-3.3VGND

VCC-3.3VGND

VCC-3.3VGND

VCC-3.3V

NRST

R45

10K

R47

100

C31

100nF

T68

RESET

PB5 PB6

PB7

PB8PB9
BT0

PE0PE1

NRST

PE2PE3

PE4PE5

PE6

PC0

PC2

PC3

PA0PA1

MCU_VREF

PC13

PC1

PA3

PA4 PA5

PA6 PA7

PC4 PC5

PB0 PB1

PB2 PE7

PE8 PE9

PA2

1

2

3 4 5 6 7 8

O

N

SW11

BT0
PB2

VCC-3.3V

R80
1K

5

page 10

1 2 3

EasyMx PRO

v7

Before you plug the microcontroller card into the
socket, make sure that the power supply is turned
o. Images below show how to correctly plug the
card. First make sure that MCU card orientation
matches the silkscreen outline on the EasyMx

PRO

™

v7 STM32® board MCU socket. Place the
MCU card over the socket, so each male header is
properly aligned with the female socket, as shown
in Figure 4-4. Then put the MCU card slowly down
until all the pins match the socket. Check again if

everything is placed correctly and press the MCU
card until it is completely plugged into the socket
as shown in Figure 4-5. If done correctly, all pins
should be fully inserted. Only now you can turn on
the power supply.

How to properly place your MCU card into the socket?

supported MCUs

Figure 4-3: On-board MCU
socket has silkscreen
markings which will help
you to correctly orient the
MCU card before inserting.

Figure 4-4:
Place the
MCU card on
the socket
so the pins
are aligned
correctly.

Figure 4-5 Properly
placed MCU card will have
equally leveled pins.

page 11

Empty HP MCU card for 100-pin

STM32F2(4)0x MCUs

Empty ETH MCU card for 100-pin

STM32F10x MCUs

Empty ETH HP MCU card for 100­pin STM32F2(4)0x MCUs

Empty MCU card for 100-pin

STM32F10x MCUs

Standard 100-pin HP ETH MCU
card with STM32F207VGT6

Default 100-pin ETH MCU card
with STM32F107VCT6

Standard 100-pin HP ETH MCU
card with STM32F407VGT6

EasyMx PRO

v7

mikroElektronika currently oers total of three populated MCU cards. Two with

Cortex

™

-M3: STM32F107VCT6 microcontroller (default), STM32F207VGT6

microcontroller and one with Cortex

™

-M4: STM32F407VGT6 microcontroller. You

can also purchase empty PCB cards that you can populate on your own and solder
any supported microcontroller you need in your development. There are total of
four empty PCB cards available. This way your EasyMx PRO

™

v7 for STM32® board

becomes truly exible and reliable tool for almost any of your ARM® projects. MCU
cards can also be used in your nal devices. For complete list of currently available
MCU cards, please visit the board webpage:

"HP" (High performance) - Empty
MCU cards that support only high
performance STM32F20x and
STM32F40x microcontrollers family.

Other supported MCU cards

http://www.mikroe.com/eng/products/view/852/easymx-pro-v7-for-stm32/

supported MCUs

"ETH" (Ethernet) - Empty MCU cards
with single-chip Ethernet PHY
layer transceiver which provides
additional Ethernet functionality to
microcontrollers

NOTE:

On-board

programmer

What is mikroProg™?

How do I start?

mikroProg™ is a fast programmer and debugger which is based on ST-LINK V2 programmer. Smart engineering allows

mikroProg

™

to support over 180 ARM® Cortex™-M3 and Cortex™-M4 devices from STM32® in a single programmer. It also

features a powerful debugger which will be of great help in your development. Outstanding performance and easy operation are

among it's top features.

In order to start using mikroProg

™

, and program your

microcontroller, you just have to follow two simple

steps:

1. Install the necessary software

- Install programmer drivers

- Install mikroProg Suite

™

for ARM® software

2. Power up the board, and you are ready to go.

- Plug in the programmer USB cable

- LINK LED should light up.

1

2

3

4

VCC

GND

D-

D+

CN20

USB B

VCC-USB

FP1

C5
100nF

USB-PROG_N

USB-PROG_P

VCC-3.3V

LINK

R2
2K2

LD68

LED_STLINK

J1

J2

J3

J4

TCK/SWCLK

TMS/SWDIO

TDI

TDO/SWO

NRST

VCC-3.3V

VCC-USB

J5

TRST

PA13

PA14

PA15

PB3

PB4

PA13-MCU

PA14-MCU

PA15-MCU

PB3-MCU

PB4-MCU

DATA BUS

VCC-3.3V

NRST

R45
10K

R47

100

C31
100nF

T68

RESET

Figure 5-1: mikroProg™ block schematics

Enabling mikroProg

™

Five jumpers below the programmer
USB connector are used to specify
whether programming lines should
be connected to programmer, or used
as general purpose I/Os. If placed in

JTAG/SWD position, jumpers connect
PA13-PA15 pins to TMS/SWDIO,

TCK/SWCLK , TDI, and PB3-PB4 pins
to TDO/SWO and TRST programming
lines respectively and are cut o from

the rest of the board.

programming

page 12

EasyMx PRO

v7

page 13

EasyMx PRO

v7

programming

STM32® Cortex™-M3 microcontrollers supported with mikroProg

™

STM32® Cortex™-M4 microcontrollers supported with mikroProg

™

STM32F100C4

STM32F100C6

STM32F100C8

STM32F100CB

STM32F100R4

STM32F100R6

STM32F100R8

STM32F100RB

STM32F100RC

STM32F100RD

STM32F100RE

STM32F100V8

STM32F100VB

STM32F100VC

STM32F100VD

STM32F100VE

STM32F100ZC

STM32F100ZD

STM32F100ZE

STM32F101C4

STM32F101C6

STM32F101C8

STM32F101CB

STM32F101R4

STM32F101R6

STM32F101R8

STM32F101RB

STM32F101RC

STM32F101RD

STM32F101RE

STM32F101RF

STM32F101RG

STM32F101T4

STM32F101T6

STM32F101T8

STM32F101TB

STM32F101V8

STM32F101VB

STM32F101VC

STM32F101VD

STM32F101VE

STM32F101VF

STM32F101VG

STM32F101ZC

STM32F101ZD

STM32F101ZE

STM32F101ZG

STM32F102C4

STM32F102C6

STM32F102C8

STM32F102CB

STM32F102R4

STM32F102R6

STM32F102R8

STM32F102RB

STM32F103C4

STM32F103C6

STM32F103C8

STM32F103CB

STM32F103R4

STM32F103R6

STM32F103R8

STM32F103RB

STM32F103RC

STM32F103RD

STM32F103RE

STM32F103RF

STM32F103RG

STM32F103T4

STM32F103T6

STM32F103T8

STM32F103TB

STM32F103V8

STM32F103VB

STM32F103VC

STM32F103VD

STM32F103VE

STM32F103VF

STM32F103VG

STM32F103ZC

STM32F103ZD

STM32F103ZE

STM32F103ZF

STM32F103ZG

STM32F105R8

STM32F105RB

STM32F105RC

STM32F105V8

STM32F105VB

STM32F105VC

STM32F107RB

STM32F107RC

STM32F107VB

STM32F107VC

STM32F205RB

STM32F205RC

STM32F205RE

STM32F205RF

STM32F205RG

STM32F205VB

STM32F205VC

STM32F205VE

STM32F205VF

STM32F205VG

STM32F205ZC

STM32F205ZE

STM32F205ZF

STM32F205ZG

STM32F207IC

STM32F207IE

STM32F207IF

STM32F207IG

STM32F207VC

STM32F207VE

STM32F207VF

STM32F207VG

STM32F207ZC

STM32F207ZE

STM32F207ZF

STM32F207ZG

STM32F215RE

STM32F215RG

STM32F215VE

STM32F215VG

STM32F215ZE

STM32F215ZG

STM32F217IE

STM32F217IG

STM32F217VE

STM32F217VG

STM32F217ZE

STM32F217ZG

STM32L151C6

STM32L151C8

STM32L151CB

STM32L151QC

STM32L151QD

STM32L151R6

STM32L151R8

STM32L151RB

STM32L151RC

STM32L151RD

STM32L151V8

STM32L151VB

STM32L151VC

STM32L151VD

STM32L151ZC

STM32L151ZD

STM32L152C6

STM32L152C8

STM32L152CB

STM32L152QC

STM32L152QD

STM32L152R6

STM32L152R8

STM32L152RB

STM32L152RC

STM32L152RD

STM32L152V8

STM32L152VB

STM32L152VC

STM32L152VD

STM32L152ZC

STM32L152ZD

STM32L162QD

STM32L162RD

STM32L162VD

STM32L162ZD

STM32F405RG

STM32F405VG

STM32F405ZG

STM32F407IE

STM32F407IG

STM32F407VE

STM32F407VG

STM32F407ZE

STM32F407ZG

STM32F415RG

STM32F415VG

STM32F415ZG

STM32F417IE

STM32F417IG

STM32F417VE

STM32F417VG

STM32F417ZE

STM32F417ZG

Copyright ©2011 Mikroelektronika.
All rights reserved. Mikroelektronika, Mikroelektronika logo and other
Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

programming

page 14

Step 1 - Start Installation

Step 3 - Installing drivers Step 4 - Finish installation

Step 2 - Select Destination

On-board mikroProg™ requires drivers in order to work.
Drivers are located on the Product DVD that you received

with the EasyMx PRO

™

v7 for STM32®

package:

When you locate the drivers, please extract
the setup le from the ZIP archive. You should be able
to locate the driver setup le. Double click the setup
le to begin installation of the programmer drivers.

Installing programmer drivers

Welcome screen of the installation. Just click on Next
button to proceed.

Drivers are installed automatically in a matter of
seconds.

You will be informed if the drivers are installed correctly.
Click on Finish button to end installation process.

Click Change button to select new destination folder
or use the suggested installation path.

A

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P

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u

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D

V

D

!

EasyMx PRO

v7

DVD://download/eng/software/
development-tools/arm/stm32/
mikroprog/st_link_v2_usb_driver.zip

A

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programming

page 15

Step 1 - Start Installation

Step 3 - Install for All users or
current user

Step 5 - Installation in progress

Step 2 - Accept EULA and continue

Step 4 - Choose destination folder

Step 6 - Finish Installation

Programming software

mikroProg Suite™ for ARM

®

Quick Guide

Installation wizard - 6 simple steps

On-board mikroProg™ programmer requires special programming software called

mikroProg Suite

™

for ARM®. This software is used for programming of all supported

microcontroller families with ARM® Cortex

™

-M3 and Cortex™-M4 cores. Software has

intuitive interface and SingleClick

™

programming technology. To

begin, rst locate the installation archive on the Product DVD:

Click the Detect MCU button in order to
recognize the device ID.

Click the Read button to read the entire
microcontroller memory. You can click the

Save button to save it to target HEX le.

If you want to write the HEX le to the
microcontroller, rst make sure to load the
target HEX le. You can drag-n-drop the
le onto the software window, or use the

Load button to open Browse dialog and

point to the HEX le location. Then click

the Write button to begin programming.

Click the Erase button to wipe out the
microcontroller memory.

After downloading, extract the package and double click the

executable setup le, to start installation.

DVD://download/eng/software/development-tools/arm/mikroprog/
mikroprog_suite_for_arm_v110.zip

EasyMx PRO

v7

1

2

3

4

Figure 5-2: mikroProg Suite™ for ARM® window

Copyright ©2011 Mikroelektronika.
All rights reserved. Mikroelektronika, Mikroelektronika logo and other
Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

programming

page 16

Hardware Debugger

What is Debugging?

Every developer comes to a point where he has to monitor the

code execution in order to nd errors in the code, or simply

to see if everything is going as planed. This hunt for bugs,
or errors in the code is called debugging. There are two ways
to do this: one is the software simulation, which enables
you to simulate what is supposed to be happening on the
microcontroller as your code lines are executed, and the other,
most reliable one, is monitoring the code execution on the
chip itself. And this latter one is called hardware debugging.
"hardware" means that it is the real deal - code executes right on
the target device.

What is hardware debugger?

The on-board mikroProg™ programmer supports hardware
debugger - a highly eective tool for a Real-Time debugging

on hardware level. The debugger enables you to execute your
program on the host STM32® microcontroller and view variable
values, Special Function Registers (SFR), RAM, CODE and EEPROM

memory along with the code execution on hardware. Whether you

are a beginner, or a professional, this powerful tool, with intuitive
interface and convenient set of commands will enable you to track
down bugs quickly. mikroProg debugger is one of the fastest, and
most reliable debugging tools on the market.

Supported Compilers

All MikroElektronika compilers, mikroC™, mikroBasic™ and

mikroPascal

™

for ARM® natively support mikroProg™ for
STM32®, as well as other compilers, including KEIL®, IAR®.
Specialized DLL module allows compilers to exploit the full
potential of fast hardware debugging. Along with compilers,
make sure to install the appropriate programmer drivers
and mikroProg Suite

™

for ARM® programming software, as

described on pages 14 and 15.

When you build your project for debugging, and program the microcontroller with this HEX le, you can

start the debugger using [F9] command. Compiler will change layout to debugging view, and a blue line
will mark where code execution is currently paused. Use debugging toolbar in the Watch Window

to guide the program execution, and stop anytime. Add the desired variables to Watch Window and

monitor their values.

How do I use the debugger?

Figure 5-3: mikroC PRO for ARM® compiler in debugging view, with SFR registers in Watch Window

EasyMx PRO

v7

programming

page 17

Here is a short overview of which debugging commands are supported in mikroElektronika compilers. You can see what each command does,
and what are their shortcuts when you are in debugging mode. It will give you some general picture of what your debugger can do.

Toolbar

Icon

Command Name Shortcut Description

Start Debugger [F9] Starts Debugger.

Run/Pause Debugger [F6] Run/Pause Debugger.

Stop Debugger [Ctrl + F2] Stops Debugger.

Step Into [F7]

Executes the current program line, then halts. If the executed
program line calls another routine, the debugger steps into the

routine and halts after executing the rst instruction within it.

Step Over [F8]

Executes the current program line, then halts. If the executed program
line calls another routine, the debugger will not step into it. The whole

routine will be executed and the debugger halts at the rst instruction

following the call.

Step Out [Ctrl + F8]

Executes all remaining program lines within the subroutine. The
debugger halts immediately upon exiting the subroutine.

Run To Cursor [F4] Executes the program until reaching the cursor position.

Toggle Breakpoints [F5]

Toggle breakpoints option sets new breakpoints or removes those
already set at the current cursor position.

Show/Hide breakpoints [Shift+F4] Shows/Hides window with all breakpoints

Clears breakpoints [Shift+Ctrl+F5] Delete selected breakpoints

Jump to interrupt [F2]

Opens window with available interrupts (doesn't work in hardware
debug mode)

Debugger commands

EasyMx PRO

v7

SW1

VCC-3.3V VCC-3.3V

VCC-3.3V

UP

DOWN

PULL

1 2 3 4 5 6 7 8

+

_

CN1 CN4

PA8

PA9

PA10

PA11

PA12

PA13

PA15

PA14

PA8 PA9
PA10 PA11
PA12 PA13

PA15PA14

PA8 PA9
PA10 PA11
PA12 PA13

PA15PA14

SW10

VCC

GND

BUTTON PRESS LEVEL

R26

220

R27

220

VCC-3.3V

1 2 3 4 5 6 7

8

O

N

SW15

J7J6

1 2 3 4 5 6 7 8

+

_

PORTA_ LEVEL

PORTA_LED

DATA BUS

PA8

PA9

PA10

PA11

PA12

PA13

PA15

PA14

LD8LD7LD6LD5LD4LD3LD2LD1

RN8
10K

RN7
10K

RN6
10K

RN5
10K

RN4
10K

RN3
10K

RN2
10K

RN1
10K

T8T7T6T5T4T3T2T1

PA8

PA9

PA10

PA11

PA12

PA13

PA15

PA14

page 18

One of the most distinctive features of EasyMx

PRO

™

v7 for STM32® are it’s Input/Output PORT

groups. They add so much to the connectivity potential

of the board.

Everything is grouped together

PORT headers, PORT buttons and PORT LEDs are next to each other, and grouped

together. It makes development easier, and the entire EasyMx PRO

™

v7 for STM32®

cleaner and well organized. We have also provided an additional PORT headers on the right side of the board, so you can access any pin you want from that

side of the board too.

Tri-state pull-up/down DIP switches

Tri-state DIP switches, like SW1 on Figure 6-3, are
used to enable 4K7 pull-up or pull-down resistor on
any desired port pin. Each of those switches has three

states:

1. middle position disables both pull-up and pull-down
feature from the PORT pin

2. up position connects the resistor in pull-up state to
the selected pin

3. down position connects the resistor in pull-down
state to the selected PORT pin.

Figure 6-1: I/O group contains PORT header, tri-state pull
up/down DIP switch, buttons and LEDs all in one place

Input/Output Group

connectivity

Figure 6-3: Schematics of the single I/O group connected to microcontroller PORTA/H

Button press level tri-state DIP
switch is used to determine which
logic level will be applied to port
pins when buttons are pressed

Figure 6-2:
Tri-state DIP
switch on PORTA/H

EasyMx PRO

v7

Figure 6-4: IDC10 male headers enable easy
connection with mikroElektronika accessory boards

connectivity

page 19

Headers Buttons LEDs

LED (Light-Emitting
Diode) is a highly

ecient electronic
light source. When

connecting LEDs,
it is necessary to
place a current
limiting resistor in
series so that LEDs
are provided with
the current value

specied by the manufacturer. The current varies from

0.2mA to 20mA, depending on the type of the LED and
the manufacturer. The EasyMx PRO

™

v7 for STM32® board
uses low-current LEDs with typical current consumption
of 0.2mA or 0.3mA. Board
contains 67 LEDs which can
be used for visual indication
of the logic state on PORT
pins. An active LED indicates
that a logic high (1) is present
on the pin. In order to enable
PORT LEDs, it is necessary
to enable the corresponding
DIP switch on SW15 (Figure
6-6).

Figure 6-6: SW15.1
through SW15.8
switches are used to
enable PORT LEDs

53

55

57

59

61

63

65

67

69

71

73

75

77

54

56

58

60

62

64

66

68

70

72

74

76

78

PA0

SMD LED

SMD resistor

limiting current

through the LED

The logic state of all
microcontroller digital
inputs may be changed
using push buttons. Tri-

state DIP switch SW10
is available for selecting

which logic state will
be applied to corresponding MCU pin when button is
pressed, for each I/O port separately. If you, for example,
place SW10.1 in VCC position, then pressing of any push
button in PORTA/H I/O group will apply logical one to the
appropriate microcontroller pin. The same goes for GND.
If the DIP switch is in the middle position, then all push
buttons of the associated PORT will be disconnected from
the microcontroller pin. You can disable pin protection
220ohm resistors by placing jumpers J6 and J7, which
will connect your push buttons directly to VCC or GND. Be
aware that doing so you may accidentally damage MCU in
case of wrong usage.

Reset Button

In the far upper right section of the
board, there is a RESET button, which
can be used to manually reset the
microcontroller.

Figure 6-5: Button press
level DIP switch (tri-state)

With enhanced connectivity as one of the key features

of EasyMx PRO

™

v7 for STM32®, we have provided two
connection headers for each PORT. I/O PORT group
contains one male IDC10 2x5 header (like CN1 Figure
6-3). There is one more IDC10 header available on
the right side of the board, next to DIP switches (like
CN4 on Figure 6-3). These headers can be used to
connect accessory boards with IDC10 female sockets.

EasyMx PRO

v7

http://www.mikroe.com/mikrobus

mikroBUS™ sockets

mikroBUS™ pinout explained

Easier connectivity and simple conguration

are imperative in modern electronic devices.
Success of the USB standard comes from it’s
simplicity of usage and high and reliable data
transfer rates. As we in mikroElektronika see it,
Plug-and-Play devices with minimum settings
are the future in embedded world too. This is
why our engineers have come up with a simple,
but brilliant pinout with lines that most of
today’s accessory boards require, which almost
completely eliminates the need of additional

hardware settings. We called this new standard

the mikroBUS

™

. EasyMx PRO™ v7 for STM32®

supports mikroBUS

™

with two on-board sockets.
As you can see, there are no additional DIP
switches, or jumper selections. Everything is

already routed to the most appropriate pins of
the microcontroller sockets.

mikroBUS™ host connector

Each mikroBUS™ host connector consists of two
1x8 female headers containing pins that are
most likely to be used in the target accessory
board. There are three groups of communication

pins: SPI, UART and I

2

C communication. There
are also single pins for PWM, Interrupt,
Analog input, Reset and Chip Select. Pinout

contains two power groups: +5V and GND on
one header and +3.3V and GND on the other
1x8 header.

mikroBUS

™

is not made only to be a part of our development boards. You can freely place

mikroBUS

™

host connectors in your nal PCB designs, as long as you clearly mark them with

mikroBUS

™

logo and footprint specications. For more information, logo artwork and

PCB les visit our website:

AN - Analog pin
RST - Reset pin
CS - SPI Chip Select line
SCK - SPI Clock line
MISO - SPI Slave Output line
MOSI - SPI Slave Input line
+3.3V - VCC-3.3V power line
GND - Reference Ground

PWM - PWM output line

INT - Hardware Interrupt line
RX - UART Receive line
TX - UART Transmit line
SCL - I

2

C Clock line

SDA - I

2

C Data line

+5V - VCC-5V power line
GND - Reference Ground

DATA BUS

AN
RST
CS
SCK
MISO
MOSI

3.3V
GND

PWM

INT

RX
TX

SCL

SDA

5V

GND

AN
RST
CS
SCK
MISO
MOSI

3.3V
GND

PWM

INT

RX

TX
SCL
SDA

5V

GND

21

VCC-3.3V VCC-5V VCC-3.3V VCC-5V

PD8

PD9

PD10 PD11

PD12

PD13 PD14

PC2 PC3

PA0PA4 PA5

PB6
PB7

PB6
PB7

PD5

PD6

MCU_MOSI

MCU_SCK
MCU_MISO

MCU_MOSI

MCU_SCK
MCU_MISO

Figure 7-1:

mikroBUS

™

connection
schematics

connectivity

EasyMx PRO

v7

page 20

Integrate mikroBUS™ in your design

page 21

connectivity

EasyMx PRO

v7

Click Boards™ are plug-n-play!

ADC click

™

LightHz click

™

CAN SPI click

™

DAC click

™

DIGIPOT click

™

SHT1x click

™

WiFi PLUS click

™

GPS click

™

BEE click

™

BlueTooth click

™

mikroElektronika’s portfolio of over 200 accessory boards is now enriched
by an additional set of mikroBUS

™

compatible Click Boards™. Almost each

month several new Click boards

™

are released. It is our intention to provide
the community with as much of these boards as possible, so you will be able
to expand your EasyMx PRO

™

v7 for STM32® with additional functionality

with literally zero hardware conguration. Just plug and play. Visit the Click

boards™ webpage for the complete list of available boards:

http://www.mikroe.com/eng/categories/view/102/click-boards/

USB-UART A

Enabling USB-UART A

communication

page 22

The UART (universal asynchronous receiver/trans­mitter) is one of the most common ways of exchanging
data between the MCU and peripheral components. It is a serial
protocol with separate transmit and receive lines, and can be used for
full-duplex communication. Both sides must be initialized with the
same baud rate, otherwise the data will not be received correctly.

Modern PC computers, laptops and notebooks are no longer
equipped with RS-232 connectors and UART controllers. They
are nowadays replaced with USB connectors and USB
controllers. Still, certain technology enables UART
communication to be done via USB connection.
Controllers such as FT232RL from FTDI® convert
UART signals to the appropriate USB standard.

USB-UART A communication is being done
through a FT232RL controller, USB connector
(CN22), and microcontroller UART module. To
establish this connection, you must connect RX and
TX lines of the microcontroller to the appropriate
input and output pins of the FT232RL. This selection
is done using DIP switches SW12.1 and SW12.2.

In order to use USB-UART A module on EasyMx PRO

™

v7 for

STM32®, you must rst install FTDI drivers on your computer.

Drivers can be found on Product DVD:

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DVD://download/eng/software/development-tools/
universal/ftdi/vcp_drivers.zip

EasyMx PRO

v7

1
2
3
4
5
6
7
8

9
10
11
12
13
14 15

16

17

18

19

20

21

22

23

24

25

26

27

28

TXD
DTR#
RTS#
VCCIO
RXD
RI#
GND
NC
DSR#
DCD#
CTS#
CBUS4
CBUS2
CBUS3

CBUS0
CBUS1

OSCO

OSCI
TEST

AGND

NC

GND

GND

VCC

RESET#

3V3OUT

USBDM

USBDP

FT232RL

U2

FT232RL

VCC-3.3V VCC-5V

C11
100nF

LD69 LD70

RX-LED1
TX-LED1

R15
4K7

R14
2K2

VCC-3.3V VCC-3.3V

R18
4K7

R21
10K

1

2

3

4

VCC

GND

D-

D+

CN22

USB B

C6
100nFC7100nFE110uF

VCC-5VVCC-5VVCC-3.3V

US B UA RT A

CON NECTOR

FTDI1-D_N
FTDI1-D_P

RX TX

DATA BUS

1 2 3 4 5 6

7

8

O

N

SW12

TX-FTDI1
RX-FTDI1

PA9
PA10

Copyright ©2011 Mikroelektronika.
All rights reserved. Mikroelektronika, Mikroelektronika logo and other
Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

In order to enable USB-UART A
communication, you must push
SW12.1 (PA9) and SW12.2 (PA10)
to ON position. This connects the
TX and RX lines to PA9 and PA10
microcontroller pins and its UART
module.

Figure 8-1:
USB-UART A
connection
schematics

USB-UART B

Enabling USB-UART B

communication

page 23

If you need to use more than one USB-UART in your
application, you have another USB-UART B connector available
on the board too. Both available USB-UART modules can operate at the
same time, because they are routed to separate microcontroller pins.

USB-UART B communication is being done through a FT232RL
controller, USB connector (CN23), and microcontroller UART
module. To establish this connection, you must connect RX
and TX lines of the microcontroller to the appropriate
input and output pins of the FT232RL. This selection
is done using DIP switches SW12.3 and SW12.4.

When using either USB-UART A or USB-

UART B, make sure to disconnect all
devices and additional boards that
could interfere with the signals
and possibly corrupt the sent or
received data.

In order to use USB-UART B module on EasyMx PRO

™

v7

STM32®, you must rst install FTDI drivers on your computer.

Drivers can be found on Product DVD:

A

v

a

i

l

a

b

l

e

o

n

P

r

o

d

u

c

t

D

V

D

!

DVD://download/eng/software/development-tools/
universal/ftdi/vcp_drivers.zip

EasyMx PRO

v7

DATA BUS

1
2
3
4
5
6
7
8

9
10
11
12
13
14 15

16

17

18

19

20

21

22

23

24

25

26

27

28

TXD
DTR#
RTS#
VCCIO
RXD
RI#
GND
NC
DSR#
DCD#
CTS#
CBUS4
CBUS2
CBUS3

CBUS0
CBUS1

OSCO

OSCI
TEST

AGND

NC

GND

GND

VCC

RESET#

3V3OUT

USBDM

USBDP

FT232RL

U4

FT232RL

VCC-3.3V VCC-5V

C26
100nF

LD73 LD74

RX-LED2
TX-LED2

R30
4K7

R29
2K2

VCC-3.3V VCC-3.3V

R37
4K7

R38
10K

1

2

3

4

VCC

GND

D-

D+

CN23

USB B

C24
100nF

C25
100nFE610uF

VCC-5VVCC-5VVCC-3.3V

US B UA RT B

CON NECTOR

FTDI2-D_P

FTDI2-D_N

RX TX

1 2 3 4 5 6

7

8

O

N

SW12

TX-FTDI2

RX-FTDI2

PD5
PD6

Copyright ©2011 Mikroelektronika.
All rights reserved. Mikroelektronika, Mikroelektronika logo and other
Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

In order to enable USB-UART B
communication, you must push
SW12.3 (PD5) and SW12.4 (PD6)
to ON position. This connects the
TX and RX lines to PD5 and PD6
microcontroller pins and its UART
module.

Figure 9-1:
USB-UART B
connection
schematics

page 24

USB HOST

communication

USB is the acronym for Universal Serial Bus. This is a very popular industry standard that denes

cables, connectors and protocols used for communication and power supply between computers and other

devices. EasyMx PRO

™

v7 for STM32® contains USB HOST connector (CN24) for USB Standard Type A plug,

which enables microcontrollers that support USB communication to establish a connection with the target device

(eg. USB Keyboard, USB Mouse, etc). USB host also provides the necessary 5V power supply to the target via TPS2041B

IC. Detection whether USB
device is connected to HOST

connector can be done through
VBUS line. Connection of USB
HOST VBUS line and PA10 pin
is established when SW10.7 is

on.

Powering USB device

You can enable or disable power
supply to USB device connected
to HOST, through microcontroller
PA10 pin. In order to connect EN
TPS2041B IC pin to microcontroller,
you must push SW10.8 to ON
position.

EasyMx PRO

v7

US B HOS T

CON NECTOR

VCC-5V

R34
47K

R36
10K

VCC-3.3V

USB-PSW

1

2

3

4

VCC

GND

D-

D+

CN24

USB A

E9
10uF

USB-D_N

USB-D_P

1

2

3

OUT

GND

IN

5

4

OCEN

U5

TPS2041B

VCC-3.3V

LD71

R31
4K7

E10
10uF

Q2
BC846

R41

10K

LD72

R32
2K2

VCC-5V

D1

BAT43

R40

100

USB-VBUS

ONOC

1 2 3 4 5 6

7

8

O

N

SW12

PA9
PA10

DATA BUS

communication

Figure 10-2:
Powering
USB device
through
PSW line

Figure 10-1: USB host
connection schematics

page 25

USB device

communication

EasyMx PRO™ v7 for STM32® also contains USB DEVICE connector (CN26) which enables

microcontrollers that support USB communication to establish a connection with the target

host (eg. PC, Laptop, etc). It lets you build a slave USB device (HID, Composite, Generic, etc.).

Connector supports USB Standard Type B plug. Detection whether USB device is connected to

HOST can be done through VBUS line. This line is traced to microcontroller PA9 pin. Connection of

USB DEVICE VCC line and PA9 pin is established when SW12.7 DIP switch is in ON position. When

connected to HOST, dedicated amber-colored power LED will light up as well. This VCC line cannot be

used for powering the board. It's only used for detecting connection.

Detecting connection

You can detect whether USB device
is plugged into the USB device
connector using VBUS power
detection line (PA9). Before using
this feature, you must connect

PA9 pin to USB connector using
SW12.7 DIP switch.

EasyMx PRO

v7

1

2

3

4

VCC

GND

D-

D+

CN26

USB B

R50 27

R53 27

LD76

R58
4K7

GND

GND

USB-D_N

USB-D_P

US B DEVICE

CON NECTOR

USB-VBUS

R48 100

ON

D2 BAT43

D_N

D_P

1

2 3

4

5

6

7 8

O

N

SW12

USB-VBUS PA9

DATA BUS

communication

Figure 11-2:
Enabling
USB DEVICE
detection
via VBUS
line

Figure 11-1: USB device connection schematics

page 26

Ethernet MCU cards

Ethernet is a popular computer networ king
technology for local area networks (LAN).
Systems communicating over Ethernet
divide a stream of data into individual
packets called frames. Each frame contains
source and destination addresses and
error-checking data so that damaged
data can be detected and re-transmitted.
EasyMx PRO

™

v7 for STM32® features

standard RJ-45 connector which enables
microcontrollers that support Ethernet
communication to establish a connection
with a computer, router or other devices.
All four Ethernet lines (TPOUT+, TPOUT-,
TPIN+ and TPIN-) are routed directly to the
MCU card socket and cannot be accessed
via PORT headers. Additional signalization
LEDs (green and yellow) are provided on
the Board next to RJ-45 connector.

Ethernet
communication

EasyMx PRO

v7

1
3
5
7

9
11
13
15
17
19
21
23
25

2
4
6
8
10
12
14
16
18
20
22
24
26

MCU CARD SOCKET

TX_PTX_N
RX_PRX_N

LED1 LED2

TD+

CT

TD-

RD+

RD-

CT

A2A1

K1 K2

CN25

RJ45

R46
51

R49
51

R54
51

R55
51

R44 270

R60

270

LD77

LD75

FP3

C33
10nF

C32

10nF

VCC-3.3V

ETHER NET

CON NECTOR

LED1

LED2

TX_P

TX_N

RX_P

RX_N

LED1

LED2

VCC-3.3V

communication

Ethernet communication (TPOUT+,
TPOUT-, TPIN+ and TPIN-) and
signalization lines (LED1, LED2)
are routed directly to the MCU card
socket and can be used only with
a Ethernet MCU cards (ETH MCU,
HP ETH MCU, Page 11).

Figure 12-1: Ethernet connection schematics

page 27

Controller Area Network (CAN or CAN
bus) is a vehicle bus standard designed
to allow microcontrollers and devices to
communicate with each other within a
vehicle without a host computer. CAN
is a message-based protocol, designed

specically for automotive applications

but now also used in other areas such
as industrial automation and medical
equipment. EasyMx PRO

™

v7 for STM32®

is equipped with SN65HVD230 – a 3.3V
CAN Transceiver and a pair of screw
terminals which provide microcontrollers
with integrated CAN controller with the
necessary physical interface for CAN
communication. Make sure to correctly

connect negative and positive dierential

communication lines before using this
module.

VCC-3.3V

R57 10

CN28

CANH

CANL

TX-CAN

RX-CAN

1
2
3

54

6

7

8

D
GND
Vdd
R Vref

CANL

CANH

Rs

U7

SN65HVD230

1 2 3 4 5 6

7

8

O

N

SW12

PD0

PD1

DATA BUS

Enabling CAN

Figure 13-1: CAN connection schematics

CAN
communication

EasyMx PRO

v7

communication

In order to enable CAN communi-
cation, you must push SW12.5
(PD1) and SW12.6 (PD0) to

ON position. This connects the
TX and RX lines to appropriate

microcontroller pins and its CAN
module.

Figure 13-2:
enabling
CAN
communica­tion

It's hard to imagine modern multimedia devices without high quality audio reproduction
modules. Sounds and music are almost as important as graphical user interfaces.
Along with other multimedia modules, EasyMx PRO

™

v7 for STM32® contains high

end stereo VS1053 audio codec. It features Ogg Vorbis/MP3/AAC/WMA/FLAC/
WAVMIDI audio decoder, as well as an PCM/IMA ADPCM/Ogg Vorbis encoder on a
single chip. Board also contains two stereo audio connectors for interfacing with
standard 3.5mm stereo audio jacks. VS1053 receives the input bit stream through a
serial input bus, which it listens to as a system slave. The input stream is decoded and
passed through a digital volume control to an 18-bit oversampling, multi-bit, sigma-delta
Digital to Analog Converter (DAC). The
decoding is controlled via a serial control
bus. In addition to the basic decoding,

it is possible to add application specic
features like DSP eects to the user RAM

memory. You can build music players,
audio recording devices, internet radio
player applications, and much more.

multimedia

page 28

Audio I/O

CN19

PHONEJACK

L

R

C2
10nF

C3
47nFC410nF

GBUF

CN21

MICROPHONE

E3
10uF

E2
10uF

C9
100pF

C8
100pF

C10
100pF

VCC-3.3V

MICN

MICP

MIC

2

XRESE

3

DGND

4

CVDD

5

IOVDD

6

CVDD

7

GPIO

11

GPIO7

12

DCS/BSY NC

13

OVDD1

14

25

VDD2

24

CS

23

GND422GND3

21

TALI18TALO

17

GND1

16

CO

15

DRE

8

MCP/LN

1

OVDD2

19

GPIO

9

GPIO

10

27
26

GND2

20

28

29

30

31

33

34

35

36

AGND

37

AVDD

38

RIGH

39

AGND40AGND

41

GBU

42

AVDD

43

RCA

44

AVDD

45

LEF

46

AGND

47

LN

48

MCP/LN1

MICN

XRESET

DGND0
CVDD0

IOVDD0

CVDD1

DREQ
GPIO2
GPIO3
GPIO6
GPIO7

XDCS/BS YNC

IOVDD1

VC0

DGND1

XTAL0

XTAL1

IOVDD2

DGND2

DGND3

DGND4

XCS

CVDD2

GPIO5

RX

TX

SCLK

SI

SO

XTEST

GPIO1

GND

GPIO4

AGND0

AVDD0

AVDD2

AGND1

AGND2

AGND3

LN2

LEFT

RCAP

AVDD1

GBUF

RIGHT

VS1053

U1

R11
1K

R13
1K

R17
1K

R19
1K

R510R620R7

20

R1 10

R3 10

VCC-1.8V VCC-3.3V

L

R

GBUF

C1

1uF

R20
100K

GPIO

GPIO

R4

10K

VCC-3.3V

R9 27

R12 27

PH_MISO
PH_MOSI
PH_SCK

MP3-DCS

MP3-DREQ

MP3-RST#

MICN

MICP

MP3-CS#

X1

12.288MHz

R22
1M

C13 22pF

C12 22pF

R8
100k

R16
10K

VCC-3.3V

C23
100nF

C22
100nF

C21
100nF

C15
100nF

C17
100nF

C14
100nF

C18
100nF

C19
100nF

C20
100nF

VCC-1.8V

C16

2.2uF

VCC-3.3V

E5
10uF

1

2

3

IN

GND

OUT

5

4

EN ADJ

U3

AP7331-ADJ

R23

120K

R24

22K

R25

12K1

E4
10uF

1 2 3 4 5 6 7 8

O

N

SW13

PH_MOSI

PH_MISO

PH_SCK

MP3-DREQ

MP3-RST#

MP3-CS#
MP3-DCS

PC6
PC7
PC8
PC9

MCU_MOSI

MCU_SCK
MCU_MISO

DATA BUS

Enabling Audio I/O

In order to use Audio I/O module,
you must connect data and Audio
control lines of the microcontroller
with the VS1053 audio codec. To
do this, push SW13.1–SW13.7
switches to ON position. This
will connect SPI data lines with
MCU_SCK, MCU_MISO and MCU_
MOSI microcontroller pins, and
audio control and chip select lines
with PC6, PC7, PC8 and PC9 pins.

EasyMx PRO

v7

Figure 14-2:
Enabling
audio codec
commu­nication
lines

Figure 14-1: Audio IN/OUT
connection schematics

multimedia

page 29

Secure Digital (SD) is a non-volatile
memory card format developed for use

in portable devices. It comes in dierent

packages and memory capacities. It is
mostly used for storing large amounts of
data. EasyMx PRO

™

v7 for STM32® features

the microSD card slot. The microSD form
factor is the smallest card format currently
available. It uses standard SPI user inter­face with minimum additional electronics,
mainly used for stabilizing communication

lines which can be signicantly distorted

at high transfer rates. Special ferrite is
also provided to compensate the voltage
and current glitch that can occur when
pushing-in and pushing-out microSD card
into the socket.

Enabling microSD

In order to access microSD card, you
must enable SPI communication
lines using SW13.1 – SW13.3 DIP
switches, as well as Chip Select (CS)
and Card Detect (CD) lines using
SW14.3 and SW14.4 switches.

FP2

FERRITE

E13
10uF

VCC-3.3VVCC-MMC

C30
100nF

1
2
4
5
6
7

G

CS

Din

+3.3V

SCK

GND

Dout

CD

GND

CN27

MICROSD

VCC-MMC

R52
10K

R51
10K

SD-CS#

PH_MISO

PH_MOSI

PH_SCK

SD-CD#

R56

27

microS D

CA RD SLOT

1 2 3 4 5 6 7 8

O

N

SW13

1 2

3

4 5 6 7 8

O

N

SW14

PH_MOSI

PH_MISO

PH_SCK

SD-CS#
SD-CD#

PD15

PD3

MCU_MOSI

MCU_SCK

MCU_MISO

DATA BUS

microSD card slot

EasyMx PRO

v7

Figure 15-1: microSD card slot

connection schematics

One of the most powerful ways of presenting data

and interacting with users is through color displays

and touch panel inputs. This is a crucial element of any

multimedia device. EasyMx PRO

™

v7 for STM32® features

EasyTFT board carrying 320x240 pixel 2.83" color TFT
display with LED back-light and HX8347D controller.

Each pixel is capable of showing 262.144 dierent colors.

TFT display is connected to microcontroller PORTE using
standard 8080 parallel 8-bit interface, with additional
control lines. Board features back-light driver which

besides standard mode can also be driven with PWM

signal in order to regulate brightness in 0 to 100% range.

page 30

TFT display
320x240 pixels

TFT display is enabled using SW13.3–SW13.4
DIP switches. Back-light can be enabled in two

dierent ways:

1. It can be turned on with full brightness
using SW13.3 switch.

2. Brightness level can be determined with
PWM signal from the microcontroller, allowing
you to write custom back-light controlling
software. This back-light mode is enabled
when both SW13.3 and SW13.4 switches
are in ON position.

VCC-5V

BCK_LIGHT
BCK_PWM PE9

GLCD_V EE

VCC-5V

VEE

PE0

PE1

PE2

PE3

PE4

PE5

PE6

PE7

PE8

PE10

PE11

PE12

PE13

BCK_LI GHT

BPWM

PE15

PMRD

PMWR

GND

VCC

NCRSNC

D1D2D3D4D5D6D7

CS

D0

RST

NC

+5V

BPWM

1 20

XR

YU

XL

YD

21 24

Q5
BC846

R62
20

R66

4K7

R64
1K

BCK_PWM

BPWM

VCC-3.3V

1 2 3 4 5 6 7 8

O

N

SW13

DATA BUS

CN32

GLCD-TFT SOCKET

Driving Display Back-light

multimedia

EasyMx PRO

v7

Figure 16-1:
TFT display connection
schematics

In order to use PWM back-light both SW13.3
and SW13.4 switches must be enabled at
the same time.

IMPORTANT:

Figure 16-2: Turn
on switches SW13.3
and SW13.4 to
enable back-light

Touch panel is a glass panel whose surface is covered

with two layers of resistive material. When the screen

is pressed, the outer layer is pushed onto the inner layer
and appropriate controllers can measure that pressure
and pinpoint its location. This is how touch panels can be
used as an input devices. EasyMx PRO

™

v7 for STM32® is

equipped with touch panel controller and connector for
4-wire resistive touch panels. It can very accurately

register pressure at a specic point, representing the

touch coordinates in the form of analog voltages, which
can then be easily converted to X and Y values. Touch
panel comes as a part of TFT 320x240 display.

Touch Panel
controller

Figure 17-2:

Turn on switches

SW11.5, SW11.6,
SW11. 7 and
SW11. 8 to enable

Touch panel
controller

Touch panel is enabled using SW11.5,
SW11.6, SW11.7 and SW11.8 switches.
They connect BOTTOM and LEFT lines of the
touch panel with PB0 and PB1 analog inputs,
and DRIVEA and DRIVEB with PB8 and PB9
digital outputs on microcontroller sockets.
Prior to using Touch panel in your application,
make sure to disconnect other peripherals, LEDs
and additional pull-up or pull-down resistors
from the interface lines that could interfere
with signals and cause data corruption.

Enabling Touch panel

multimedia

CN29

PMRD

PMWR

GND

VCC

NCRSNC

D1D2D3D4D5D6D7

CS

D0

RST

NC

+5V

BPWM

1 20

XR

YU

XL

YD

21 24

GLCD-TFT SOCKET

Q3
BC856

Q4
BC846

R61

10K

R59
1K

VREF

R65

10K

R63
4K7

VCC-3.3V

Q6
BC856

VREF

R67

10K

Q7
BC846

R71

10K

C35
10nF

R70
100K

Q8
BC846

R78

10K

C40
10nF

R77
100K

R75
4K7

VCC-3.3V

RIGHT

TOP

DRIVEA

DRIVEB

E14
10uF

VCC-3.3V

FP4

FERRITE

E15
10uF

VCC-1.8V VREF

LEFT

BOTTOM

PB8
PB9

1

2

3 4 5 6 7 8

O

N

SW11

DRIVEA
DRIVEB

LEFT

BOTTOMPB0

PB1

DATA BUS

RIGHT
TOP
LEFT
BOTTOM

Figure 17-1: Touch Panel controller
and connection schematics

page 31

EasyMx PRO

v7

NOTE:

VREF=1.8V

VCC-5V

BCK_LIGHT
BCK_PWM PE9

GLCD_V EE

VCC-5V

VEE

PE0

PE1

PE2

PE3

PE4

PE5

PE6

PE7

PE8

PE10

PE11

PE12

PE13

BCK_LI GHT

BPWM

PE15

CN32

GLCD-TFT SOCKET

Q5
BC846

R62
20

R66

4K7

R64
1K

BCK_PWM

BPWM

VCC-3.3V

P2
10K

GLCD_VEE

VEE

1 2 3 4 5 6 7 8

O

N

SW13

DATA BUS

In order to use PWM back-light both SW13.3 and SW13.4 switches must be enabled at the same
time.

IMPORTANT:

Graphical Liquid Crystal Displays, or GLCDs
are used to display monochromatic graphical

content, such as text, images, human-machine

interfaces and other content. EasyMx PRO

™

v7 for STM32® provides the connector and

necessary interface for supporting GLCD with

resolution of 128x64 pixels, driven by the KS108

or compatible display controller. Communication

with the display module is done through CN32

display connector. Board is tted with uniquely designed

plastic display distancer, which allows the GLCD module to

perfectly and rmly t into place.

Display connector is routed to PORTE (control and data lines)
of the microcontroller sockets. PORTE is also used by TFT
display. You can control the display contrast using dedicated
potentiometer P2. Full brightness display back-light can be
enabled with SW13.3 switch, and PWM-driven back-light
with SW13.4 switch.

GLCD 128x64

multimedia

page 32

EasyMx PRO

v7

Figure 18-1: GLCD 128x64 connection schematics

Connector pinout explained

CS1 and CS2 - Controller Chip Select lines

VCC - +5V display power supply

GND - Reference ground

Vo - GLCD contrast level from potentiometer P3

RS - Data (High), Instruction (Low) selection line

R/W - Determines whether display is in Read or

Write mode.

E - Display Enable line

D0–D7 - Data lines

RST - Display reset line

Vee - Reference voltage for GLCD contrast

potentiometer P3

LED+ - Connection with the back light LED anode

LED- - Connection with the back light LED cathode

When working with multi media

applications it is far more intuitive
to use a single joystick than several

dierent push buttons that are more

far apart. This is more natural for users
and they can browse through on-screen
menus, or even play games much easier.
EasyMx PRO

™

v7 for STM32® features

navigation switch with ve dierent
positions: Up, Down, Left, Right and Center.

Each of those acts as a button, and is connected

to one of the following microcontroller pins: PD4,
PB5, PD2, PA6, PC13 (respectively). Before using the

navigation switch, it is necessary to pull-up mentioned
microcontroller pins using tri-state DIP switches located in I/O
groups. After pressing the navigation switch in desired direction,
associated microcontroller pins are connected to GND, which can be
detected in user software.

Navigation switch

Figure 19-2: Navigation switch is an intuitive solution for browsing
through on-screen menus.

4

5

6

1

2

3

KEY1

UP

LEFT

CENTER

RIGHT

DOWN

PD2

PD4

PC13

PA6

PB5

SW8

SW5

SW4

SW2

VCC-3.3V

VCC-3.3V

VCC-3.3V

VCC-3.3V

UP

DOWN

PULL

UP

DOWN

PULL

UP

DOWN

PULL

UP

DOWN

PULL

1 2 3 4 5 6 7 8

+

_

1 2 3 4 5 6 7 8

+

_

1 2 3 4 5 6 7 8

+

_

1 2 3 4 5 6 7 8

+

_

PA6

PB5

PC13

PD2

PD4

DATA BUS

Figure 19-1: Navigation switch connection schematics. Pull-up resistors should be enabled during operation

multimedia

page 33

EasyMx PRO

v7

DS1820 is a digital tempera-

ture sensor that uses 1-wire®

interface for it’s operation. It is

capable of measuring temperatures

within the range of -55 to 128°C,

and provides ±0.5°C accuracy for
temperatures within the range of -10 to
85°C. It requires 3V to 5.5V power supply
for stable operation. It takes maximum

of 750ms for the DS1820 to calculate
temperature with 9-bit resolution.
1-wire® serial communication ena­bles data to be transferred over a single
communication line, while the process
itself is under the control of the master
microcontroller. The advantage of
such communication is that only one
microcontroller pin is used. Multiple

sensors can be connected on the same
line. All slave devices by default have
a unique ID code, which enables the
master device to easily identify all
devices sharing the same interface.
Board provides a separate socket (TS1)
for the DS1820. Communication line
with the microcontroller is established
using SW14.5 DIP switch (ON position).

DS1820 - Digital
Temperature Sensor

page 34

VCC-3.3V

C41
100nF

1 2

3 4 5 6 7 8

O

N

SW14

DS1820 PB10

DATA BUS

VCC-3.3V

R33
1K5

EasyMx PRO™ v7 for STM32® enables you to establish 1-wire® communication
between DS1820 and the microcontroller over PB10 pin. The connection is
done placing SW14.5 DIP switch to ON position (Figure 20-3). When placing the
sensor in the socket make sure that half-circle on the board’s silkscreen markings
matches the rounded part of the DS1820 sensor. If you accidentally connect the
sensor the other way, it may be permanently damaged and you might need to
replace it with another one. During the readings of the sensor, make sure that no
other device (except those in 1-wire network) uses the selected line, because it
may interfere with the data.

Figure 20-2:
DS1820 correctly
placed in socket

Figure 20-4: DS1820 connected to PB10 pin

Enabling DS1820 Sensor

other modules

EasyMx PRO

v7

Figure 20-1:
DS1820
socket

Figure 20-3:
Enabled SW14.5
DIP switch

The LM35 is a low-cost precision
integrated-circuit temperature sensor,
whose output voltage is linearly
proportional to the Celsius (Centigrade)
temperature. The LM35 thus has an
advantage over linear temperature
sensors calibrated in ° Kelvin, as the
user is not required to subtract a large
constant voltage from its output to

obtain convenient Centigrade scaling.
It has a linear +10.0 mV/°C scale factor

and less than 60 μA current drain. As it
draws only 60 μA from its supply, it has

very low self-heating, less than 0.1°C in
still air. EasyMx PRO™ v7 for STM32®
enables you to get analog readings
from the LM35 sensor in restricted
temperature range from +2ºC to +150ºC.

Board provides a separate
socket (TS2) for the LM35
sensor in TO-92 plastic
packaging. Readings are
done with microcontroller using
single analog input line, which
is selected with DIP switch SW14.
Switch connects the sensor with either
PC0 or PA3 microcontroller pins.

page 35

C29

100nF

1

2

3 4 5 6

7

8

O

N

SW14

LM35PC0

PA3

LM35

DATA BUS

R79
100

Figure 21-4: LM35 connected to PC0 pin

EasyMx PRO

™

v7 for STM32® enables you to get analog readings from the

LM35 sensor using PC0 or PA3 microcontroller pins. The selection of either of
those two lines is done using SW14.6 or SW14.7 DIP switch (Figure 21-3).

When placing the sensor in the socket make sure that half-circle on the board’s

silkscreen markings matches the rounded part of the LM35 sensor. If you
accidentally connect the sensor the other way, it can be permanently damaged
and you might need to replace it with another one. During the readings of the
sensor, make sure that no other device uses the selected analog line, because
it may interfere with the readings.

Figure 21-1:
LM35 socket

Figure 21-2:
LM35 correctly
placed in socket

Enabling LM35 Sensor

LM35 - Analog
Temperature Sensor

other modules

EasyMx PRO

v7

Figure 21-3:
Enabled SW14.6
DIP switch

Flash memory is a non-volatile storage chip that
can be electrically erased and reprogrammed. It

was developed from EEPROM (electrically erasable

programmable read-only memory) and must be

erased in fairly large blocks before these can be

rewritten with new data. The high density NAND

type must also be programmed and read in (smaller)

blocks, or pages, while the NOR type allows a single

machine word (byte) to be written or read independently.

Flash memories come in dierent sizes and supporting

dierent clock speeds. They are mostly used for mass

storage, as in USB Flash Drives, which are very popular today.

EasyMx PRO

™

v7 features M25P80 Serial Flash Memory which uses

SPI communication interface and has 8 Mbits of available memory,

organized as 16 sectors, each containing 256 pages. Each page is 256 bytes

wide. Thus, the whole memory can be viewed as consisting of 4096 pages, or

1,048,576 bytes. Maximum clock frequency for READ instructions is 40MHz.

other modules

page 36

Serial Flash Memory

In order to connect Serial Flash Memory
to the microcontroller you must enable
SW13.1, SW13.2, SW13.3 and SW13.8
switches. This connects SPI lines to MCU_
MOSI, MCU_MISO, MCU_SCK and PD7 (CS)
microcontroller pins.

The Serial Peripheral Interface Bus or SPI bus is a synchronous serial data link standard that operates in full
duplex mode. It consists of four lines MISO (Master Input Slave Output), MOSI (Master Output Slave Input), SCK
(Clock) and CS (Chip Select). Devices communicate in master/slave mode where the master device initiates the
data frame. Multiple slave devices are allowed with individual slave select (chip select) lines.

Enabling Serial Flash

What is SPI?

Figure 22-1:
Schematics of
Serial Flash
Memory module

EasyMx PRO

v7

1
2
3

54

6

7

8

CS
SDO
WP
GND SDI

SCK

HOLD

VCC

U6

25P80

VCC-3.3V

R39

100K

C27
100nF

VCC-3.3V

FLASH-CS#
PH_MISO

PH_MOSI
PH_SCK

R43 27

VCC-3.3V

1 2 3 4 5 6 7 8

O

N

SW13

FLASH-CS#

PH_MOSI

PH_MISO

PH_SCK

PD7

MCU_MOSI

MCU_SCK
MCU_MISO

DATA BUS

EEPROM is short for Electrically Erasable
Programmable Read Only Memory. It is usually

a secondary storage memory in devices containing
data that is retained even if the device looses power
supply. Because of the ability to alter single bytes
of data, EEPROM devices are used to store personal

preference and conguration data in a wide spectrum

of consumer, automotive, telecommunication, medical,
industrial, and PC applications.

EasyMx PRO

™

v7 for STM32® supports serial EEPROM which

uses I

2

C communication interface and has 1024 bytes of

available memory. EEPROM itself supports single byte or 16-byte
(page) write and read operations. Data rates are dependent of power
supply voltage, and go up to 400 kHz for 3.3V power supply. EEPROM
address on I

2

C bus is 0xA2.

other modules

page 37

I2C EEPROM

In order to connect I2C EEPROM to the
microcontroller you must enable SW14.1 and
SW14.2 switches, as shown on Figure 23-2. 4K7
pull-up resistors necessary for I

2

C communication

are already provided on SDA and SCL lines once
switches are turned on. Prior to using EEPROM
in your application, make sure to disconnect
other peripherals, LEDs and additional pull-up
or pull-down resistors from the PB6 and PB7
communication lines that could interfere with the
data signals and cause data corruption.

I

2

C is a multi-master serial single-ended bus that is used to attach low-speed peripherals to computer or embedded

systems. I²C uses only two open-drain lines, Serial Data Line (SDA) and Serial Clock (SCL), pulled up with
resistors. SCL line is driven by a master, while SDA is used as bidirectional line either by master or slave device.
Up to 112 slave devices can be connected to the same bus. Each slave must have a unique address.

Enabling I2C EEPROM

What is I

2

C?

Figure
23-2: Turn

on switches
SW14.1
and SW14.2
to connect
EEPROM lines
to MCU

Figure 23-1:
Schematic of
I

2

C EEPROM

module

EasyMx PRO

v7

C36
100nF

1
2
3

54

6

7

8

A0
A1
A2
VSS SDA

SCL

WP

VCC

U9

24AA01 EEPROM

VCC-3.3VVCC-3.3V

VCC-3.3V

R72
2K2

R73
2K2

VCC-3.3V

EEPROM-SCL
EEPROM-SDA

EEPROM-SDA

EEPROM-SCL

1 2

3 4 5 6 7 8

O

N

SW14

PB6
PB7

DATA BUS

Digital signals have two discrete states, which are decoded as high

and low, and interpreted as logic 1 and logic 0. Analog signals,

on the other hand, are continuous, and can have any value

within dened range. A/D converters are specialized circuits

which can convert analog signals (voltages) into a digital

representation, usually in form of an integer number.

The value of this number is linearly dependent on

the input voltage value. Most microcontrollers

nowadays internally have A/D converters

connected to one or more input pins. Some

of the most important parameters of

A/D converters are conversion time

and resolution. Conversion time

determines how fast can an analog

voltage be represented in form

of a digital number. This is an
important parameter if you
need fast data acquisition. The

other parameter is resolution.

Resolution represents the number of

discrete steps that supported voltage range

can be divided into. It determines the sensitivity of the A/D converter. Resolution is represented in maximum

number of bits that resulting number occupies. Most microcontrollers have 10-bit resolution, meaning that maximum

value of conversion can be represented with 10 bits, which converted to integer is 2

10

=1024. This means that supported voltage

range, for example from 0-1.8V, can be divided into 1024 discrete steps of about 1.758mV. EasyMx PRO

™

v7 for STM32® provides an

interface in form of potentiometer for simulating analog input voltages that can be routed to any of the 5 supported analog input pins.

page 38

ADC inputs

P1

10K

R42

220

J8

C28
100nF

PC0

PA3

PA6

PA4
PA5

VCC-1.8V

C42
100nF

VCC-1.8V

DATA BUS

Enabling ADC inputs

In order to connect the output of the
potentiometer P1 to PA3, PA4, PA 5, PA 6
or PC0 analog microcontroller inputs, you
have to place the jumper J8 in the desired
position. By moving the potentiometer
knob, you can create voltages in range
from GND to VCC.

Figure 24-1:
Schematic of ADC
input

EasyMx PRO

v7

other modules

Piezo electricity is the charge which accumulates in
certain solid materials in response to mechanical pressure,
but also providing the charge to the piezo electric material
causes it to physically deform. One of the most widely
used applications of piezo electricity is the production of
sound generators, called piezo buzzers. Piezo buzzer is an

electric component that comes in dierent shapes and sizes,

which can be used to create sound waves when provided
with analog electrical signal. EasyMx PRO

™

v7 for STM32®

comes with piezo buzzer which can be connected to PE14
microcontroller pin. Connection is established using SW14.8
DIP switch. Buzzer is driven by transistor Q1 ( Figure 25-1).

Microcontrollers can create sound by generating a PWM
(Pulse Width Modulated) signal – a square wave signal,

which is nothing more than a sequence of logic zeros and

ones. Frequency of the square signal determines
the pitch of the generated sound, and duty cycle of
the signal can be used to increase or decrease the
volume in the range from 0% to 100% of the duty

cycle. You can generate PWM signal using hardware

capture-compare module, which is usually available in
most microcontrollers, or by writing a custom software
which emulates the desired signal waveform.

Supported sound frequencies

Piezo buzzer’s resonant frequency (where you can expect
it's best performance) is 3.8kHz, but you can also use it to
create sound in the range between 2kHz and 4kHz.

page 39

Figure 25-2:
push
SW14.8 to
ON position
to connect
Piezo buzzer
to PE14

1 2

3 4 5 6 7 8

O

N

SW14

R35

10K

Q1
BC846

R28

1K

VCC-5V

PE14 BUZZER

PZ1
BUZZER

DATA BUS

PERSPECTIVE

VIEW

TOP

VIEW

In order to use the on-board Piezo Buzzer in

your application, you rst have to connect the

transistor driver of piezo buzzer to the appropriate
microcontroller pin. This is done using SW14.8 DIP
switch which connects it to PE14 pin.

Buzzer starts "singing" when you provide

PWM signal from the microcontroller

to the buzzer driver. The pitch of the
sound is determined by the frequency,
and amplitude is determined by the

duty cycle of the PWM signal.

Enabling Piezo Buzzer

How to make it sing?

Figure 25-1: Piezo buzzer
connected to PE14
microcontroller pin

Freq = 3kHz, Duty Cycle = 50%

Freq = 3kHz,

Volume = 50%

Freq = 3kHz,

Volume = 80%

Freq = 3kHz,

Volume = 20%

Freq = 3kHz, Duty Cycle = 80%

Freq = 3kHz, Duty Cycle = 20%

TO SOCKETS

VCC-5V

R3
1K

PZ1

Q8

10K

R27

VIEW

TOP

VIEW

RE1

RC2

J21

BUZZER

TO SOCKETS

VCC-5V

R3
1K

PZ1

Q8

10K

R27

VIEW

TOP

VIEW

RE1

RC2

J21

BUZZER

TO SOCKETS

VCC-5V

R3
1K

PZ1

Q8

10K

R27

VIEW

TOP

VIEW

RE1

RC2

J21

BUZZER

Piezo Buzzer

multimedia

EasyMx PRO

v7

page 40

EasyMx PRO

v7

Additional GNDs

EasyMx PRO™ v7 for STM32® contains GND pins located in dierent sections of

the board, which allow you to easily connect oscilloscope GND reference when

you monitor signals on microcontroller pins, or signals of on-board modules.

GND is located below microSD section.

GND is located just above PORTE/H Input/Output Group.

GND is located below power supply region.

1

2

3

Figure 26-1:
Three oscilloscope GND pins
are conveniently positioned so

dierent parts of the board can be

reached with an oscilloscope probe

1

1

2

2

3

3

other modules

page 41

What’s Next?

You still don’t have an appropriate compiler? Locate ARM® compiler
that suits you best on the Product DVD provided with the package:

Choose between mikroC

™

, mikroBasic™ and mikroPascal™ and

download fully functional demo version, so you can begin building
your ARM

®

Cortex™-M3 and Cortex™-M4 applications.

Once you have chosen your compiler, and
since you already got the board, you are

ready to start writing your rst projects.
We have equipped our compilers with

dozens of examples that demonstrate
the use of each and every feature of the

EasyMx PRO

™

v7 for STM32® board,

and all of our accessory boards as well.
This makes an excellent starting point
for your future projects. Just load the
example, read well commented code,
and see how it works on hardware.
Browse through the compiler Examples

path to nd the following folder:

You have now completed the journey through each and every feature of EasyMx PRO

™

v7 for STM32® board. You got to know it’s modules, organization, supported

microcontrollers, programmer and debugger. Now you are ready to start using your new board. We are suggesting several steps which are probably the best way to begin.
We invite you to join the users of EasyMx PRO

™

brand. You will nd very useful projects and tutorials and can get help from a large ecosystem of users. Welcome!

Compiler

Projects

DVD://download/eng/software/compilers/

\Development Systems\STM32\

If you want to nd answers to your

questions on many interesting topics
we invite you to visit our forum at

http://www.mikroe.com/forum

and browse through more than 150

thousand posts. You are likely to nd

just the right information for you. On
the other hand, if you want to download
free projects and libraries, or share your
own code, please visit the Libstock

website. With user proles, you can

get to know other programmers, and

subscribe to receive notications on

their code.

http://www.libstock.com/

Community

We all know how important it is that we

can rely on someone in moments when
we are stuck with our projects, facing a
deadline, or when we just want to ask
a simple, basic question, that’s pulling

us back for a while. We do understand

how important this is to people and
therefore our Support Department
is one of the pillars upon which our
company is based. MikroElektronika

oers Free Tech Support to the end

of product lifetime, so if something
goes wrong, we are ready and willing
to help!

http://www.mikroe.com/esupport/

Support

EasyMx PRO

v7

Copyright ©2011 Mikroelektronika.

All rights reserved. Mikroelektronika, Mikroelektronika logo and other

Mikroelektronika trademarks are the property of Mikroelektronika.
All other trademarks are the property of their respective owners.

Unauthorized copying, hiring, renting, public performance and

broadcasting of this DVD prohibited.

20122011

www.mikroe.com

A

v

a

i

l

a

b

l

e

o

n

P

r

o

d

u

c

t

D

V

D

!

multimedia

EasyMx PRO

v7

page 42

notes

DISCLAIMER

All the products owned by MikroElektronika are protected by copyright law and international copyright treaty. Therefore, this manual is to be treated as any other copyright
material. No part of this manual, including product and software described herein, must be reproduced, stored in a retrieval system, translated or transmitted in any form or by

any means, without the prior written permission of MikroElektronika. The manual PDF edition can be printed for private or local use, but not for distribution. Any modication

of this manual is prohibited.

MikroElektronika provides this manual ‘as is’ without warranty of any kind, either expressed or implied, including, but not limited to, the implied warranties or conditions of

merchantability or tness for a particular purpose.

MikroElektronika shall assume no responsibility or liability for any errors, omissions and inaccuracies that may appear in this manual. In no event shall MikroElektronika, its

directors, ocers, employees or distributors be liable for any indirect, specic, incidental or consequential damages (including damages for loss of business prots and business

information, business interruption or any other pecuniary loss) arising out of the use of this manual or product, even if MikroElektronika has been advised of the possibility of
such damages. MikroElektronika reserves the right to change information contained in this manual at any time without prior notice, if necessary.

TRADEMARKS

The Mikroelektronika name and logo, the Mikroelektronika logo, mikroC™, mikroBasic™, mikroPascal™, mikroProg™, mikromedia™, EasyARM™, EasyMx PRO™, Click boards™ and
mikroBUS

™

are trademarks of Mikroelektronika. All other trademarks mentioned herein are property of their respective companies.

All other product and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are only used for

identication or explanation and to the owners’ benet, with no intent to infringe.

HIGH RISK ACTIVITIES

The products of MikroElektronika are not fault – tolerant nor designed, manufactured or intended for use or resale as on – line control equipment in hazardous environments

requiring fail – safe performance, such as in the operation of nuclear facilities, aircraft navigation or communication systems, air trac control, direct life support

machines or weapons systems in which the failure of Software could lead directly to death, personal injury or severe physical or environmental damage (‘High Risk

Activities’). MikroElektronika and its suppliers specically disclaim any expressed or implied warranty of tness for High Risk Activities.

Copyright © MikroElektronika

™

, 2012, All Rights Reserved.

If you want to learn more about our products, please visit our website at www.mikroe.com

If you are experiencing some problems with any of our products or just need additional

information, please place your ticket at www.mikroe.com/esupport

If you have any questions, comments or business proposals,

do not hesitate to contact us at o[e-mail]

EasyMx PRO v7 for STM32

®

User Manual ver. 1.01

0 100000 019610