Renesas RA4M1 User Manual
Renesas RA Family
RA4 Series
RA4M1 Group
Evaluation Kit for RA4M1 Microcontroller Group
User’s Manual
Rev.1.01 Apr 2020
www.renesas.com
All information conta ined in these materi als, includin g products and pr oduct specificat ions, represent s
User’s Manual
EK-RA4M1 v1
information on the product at the time of publicat ion and is subject t o change by Renesas El ectronics
Corp. without notice. Please review the latest information published by Renesas Electronics Corp.
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Evaluation Kit RA4M1 (EK-RA4M1) Disclaimer
By using this EK-RA4M1, the User accepts the following terms, which are in addition to, and control in the event of disagreement, with Renesas’ General
Terms and Conditions available at https://www.renesas.com/en-us/legal/disclaimer.html
The EK-RA4M1 is not guaranteed to be error free, and the entire risk as to the results and performance of the EK-RA4M1 is assumed by the User. The
EK-RA4M1 is provided by Renesas on an “as is” basis without wa rra nt y of any kind whe th er e xpress or implied, including but not limited to the implied
warranties of good workmanship, fitness for a particular purpose, title, merchantability, and non-infringement of intellectual property rights. Renesas
expressly disclaims any implied warranty.
Renesas does not consid er the EK-RA4M1 to be a finished product and therefore the EK-RA4M1 may not comply with some requirements applicable to
finished products, including, but not limited to recycling, restricted substances and electromagnetic compatibility regulations. Refer to Certifications section,
for information about certifications and compliance information for the EK-RA4M1. It is the kit User’s responsibility to make sure the kit meets any local
requirements applicable to their region.
Renesas or its affiliates shall in no event be liable for any loss of profit, loss of data, loss of contract, loss of business, damage to reputation or goodwill, any
economic loss, any reprogramming or recall costs (whether the foregoing losses are direct or indirect) nor shall Renesas or its affiliates be liable for any
other direct or indirect special, incidental or consequential damages arising out of or in relation to the use of this EK-RA4M1, even if Renesas or its affiliates
have been advised of the possibility of such damages.
Renesas has used reasona ble care in preparing the information included in this document, but Renesas does not warrant that such information is error free
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Precautions
This Evaluation Kit is only intended for use in a laboratory environment under ambient temperature and humidity conditions. A safe separation distance
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with the protection requi rem e nts of the El ectr om agn eti c C om p atibi lity Directive and could lead to prosecution.
The product generates, uses, and can radiate radio frequency energy and may cause harmful interference to radio communications. There is no guarantee
that interference will not occur in a particular installation. If this equipment causes harmful interference to radio or television reception, which can be
determined by turning the equipment off or on, you are encouraged to try to correct the interference by one or more of the following measures:
• Ensure attached cables do not lie across the equipment.
• Reorient the receiving antenna.
• Increase the distance between the equipment and the receiver.
• Connect the equipment into an outlet on a circuit different from that which the receiver is connected.
• Power down the equipment when not i n use.
• Consult the dealer or an experienced radio/TV technician for help.
Note: It is recommended that wherever possible shielded interface cables are used.
The product is potentially susceptible to certain EMC phenomena. To mitigate against them it is recommended that the following measures be undertaken:
• The user is advised that mobile phones should not be used within 10 m of the product when in use.
• The user is advised to take ESD precautions when handling the equipment.
The Evaluation Kit does not represent an ideal reference design for an end pr odu ct and do es not fulfi ll the regul atory standards for an end prod uct.
.
User’s Manual
Renesas RA Microcontrollers
EK-RA4M 1 v 1
Contents
1. Kit Overview ............................................................................................................................ 3
1.1 Assumptions and Advisor y Notes ............................................................................................................ 6
2. Kit Contents ............................................................................................................................. 6
3. Ordering Information ................................................................................................................ 6
4. Hardware Details ..................................................................................................................... 7
4.1 Jumpers Settings ..................................................................................................................................... 7
4.1.1 Copper Jumpers .................................................................................................................................... 7
4.1.2 Default Board Configuration .................................................................................................................. 7
5. Hardware Layout ..................................................................................................................... 9
5.1 System Block Diagram ............................................................................................................................ 9
5.2 Power Requirements ............................................................................................................................... 9
5.2.1 Power Supply Options ........................................................................................................................... 9
5.2.1.1 Option 1: Debug USB (default) ......................................................................................................... 10
5.2.1.2 Option 2: Test Points TP3 and TP4 .................................................................................................. 10
5.2.1.3 Option 3: Test Points TP1 and TP2 ................................................................................................. 10
5.2.1.4 Option 4: Pin Headers ...................................................................................................................... 11
5.2.2 Powering up the Board ........................................................................................................................ 12
5.2.3 Battery Supply Configuration ............................................................................................................... 12
5.2.4 Measuring Current Consumption ........................................................................................................ 12
5.3 Main Components ................................................................................................................................. 14
5.4 Connectivity and Settings ...................................................................................................................... 14
5.4.1 Device USB ......................................................................................................................................... 14
5.4.2 Debug USB .......................................................................................................................................... 15
5.4.3 JTAG/SWD .......................................................................................................................................... 16
5.4.4 LEDs .................................................................................................................................................... 17
5.4.5 Switches .............................................................................................................................................. 17
5.4.6 PMOD A .............................................................................................................................................. 18
5.4.7 PMOD B .............................................................................................................................................. 19
5.4.8 User Capacitive Touch Button ............................................................................................................. 19
5.5 Pin Headers ........................................................................................................................................... 20
5.5.1 Pin Header J1 ...................................................................................................................................... 22
5.5.2 Pin Header J2 ...................................................................................................................................... 23
5.5.3 Pin Header J3 ...................................................................................................................................... 24
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
5.5.4 Pin Header J4 ...................................................................................................................................... 25
5.6 Additional Features................................................................................................................................ 25
5.6.1 Analog Reference Voltages ................................................................................................................. 25
5.6.2 On-Board Clock Crystals ..................................................................................................................... 26
5.6.3 User Potentiometer ............................................................................................................................. 26
5.6.4 Boot Configuration ............................................................................................................................... 27
5.6.5 Miscellaneous Signals ......................................................................................................................... 27
5.6.5.1 AVCC0/AVSS0 .................................................................................................................................. 27
5.6.5.2 VCL .................................................................................................................................................... 28
5.6.5.3 VCC_USB_LDO ................................................................................................................................ 28
5.6.5.4 VCC_USB ......................................................................................................................................... 28
5.6.5.5 Signal P205 ....................................................................................................................................... 29
6. Certifications .......................................................................................................................... 30
6.1 EMC/EMI Standards .............................................................................................................................. 30
6.2 Material Selection, Waste, Recycling and Disposal Standards ............................................................ 30
6.3 Safety Standards ................................................................................................................................... 30
7. Design and Manufacturing Information .................................................................................. 31
8. Website and Support ............................................................................................................. 31
Revision History ............................................................................................................................ 32
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
1. Kit Overview
The EK-RA4M1 v1 enables developers to get started with initial firmware development.
• Renesas RA4M1 Microcontroller Group
R7FA4M1AB3CFP
100-pin LQFP package
48 MHz Arm
32 KB SRAM
256 KB code flash memory
8 KB data flash memory
• Connectivity
A Device USB connector for the Main MCU
SEGGER J-Link
10pin JTAG/SWD interface is also provided for connecting optional external debuggers and
programmers.
Two PMOD connectors, allowing use of appropriate PMOD compliant peripheral plug-in modules for
rapid prototyping
Pin headers for access to power and signals for the Main MCU
• Multiple clock sources
Main MCU oscillator crystals, providing precision 12.000 MHz and 32,768 Hz external reference
clocks
Additio n al low-precision clocks are available internal to the Main MCU
• MCU reset push-button switch
• MCU boot configuration jumper
• General purpose I/O ports
One jumper to allow measuring of Main MCU current
Copper jumpers on PCB bottom side for configuration and access to selected MCU signals
• Oper ati ng voltage
External 5 V input through the Debug USB connector supplies the on-board power regulator to power
the Evaluation Kit logic and interfaces. External 5 V or 3.3 V may also be supplied through alternate
locations on the Ev aluati on Kit.
• A two-color board status LED indicating availability of regulated power and connection status of the J-Link
interface
• A red User LED, controlled by the Main MCU firmware
• A User Push-Button switch, User Capacitive Touch Sensor (button), and an optional User Potentiometer,
all of which are controlled by the Main MCU firmware.
®
Cortex®-M4 core with Floating Point Unit (FPU)
®
On-Board (OB) interface for debugging and programming of the RA4M1 MCU. A
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
Figure 1. EK-RA4M1 v1 Top Side
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
Figure 2. EK-RA4M1 v1 Bottom Side
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
1
2
1.1 Assumptions and Advisory Notes
1. It is assumed that the user has a basic understanding of microcontrollers and embedded systems
hardware
2. It is recommended that the user refers to the EK-RA4M1 - Quick Start Guide to become acquainted with
the kit and the Quick Start example the EK-RA4M1 comes preprogrammed with.
3. Flexib le Soft ware Pac kage (FSP) and Integrated Development Environment (IDE) such as e
required to develop embedded applications on EK-RA4M1. Instructions to download and install software
are provided in the Quick Start Guide.
4. Additionally, the instructions to import example projects, build them and program the EK-RA4M1 are also
provided in the Quick Start Guide.
2
studio are
2. Kit Contents
The following components are included the kit:
1. One EK-RA4M1 board
2. One USB Type-A to Micro-B cable
Figure 3. EK-RA4M1 v1 Kit Contents
3. Ordering Information
EK-RA4M1 Orderable Part Number: RTK7EKA4M1S00001BU
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
4. Hardware Details
4.1 Jumpers Settings
4.1.1 Copper Jumpers
There are two types of copper jumpers, designated trace-cut and solder-bridge.
A trace-cut jumper is provided with a narrow copper trace connecting its pads. The silk screen overlay
printing around a trace-cut jumper is a solid box. To isolate the pads, cut the trace between pads adjacent to
each pad then remove the connecting copper foil either mechanically or with the assistance of heat. Once
the etched copper trace is removed, the trace-cut jumper is turned into a solder-bridge jumper for any later
changes.
A solder-bridge jumper is provided with two isolated pads that may be joined together by one of three
methods:
• Solder may be applied to both pads to develop a bulge on each and the bulges joined by touching a
soldering iron across the two pads.
• A small wire may be placed across the two pads and soldered in place.
• A SMT resistor, size 0805, 0603, or 0402, may be placed across the two pads and soldered in place. A
zero-ohm resistor shorts the pads together.
The silk screen overlay printing around a solder-bridge jumper is a box with a gap in the lines adjacent to the
isolation region between the pads.
For any copper jumper, the connection is considered closed if there is an electrical connection between the
pads (default for trace-cut jumpers). The connection is considered open if there is no electrical connection
between the pads (default for the solder-bridge jumpers).
Figure 4. Copper Jumpers
4.1.2 Default Board Configuration
The following table describes the default settings for each jumper on the EK-RA4M1. This includes traditional
pin jumpers (Jx designation) and copper jumpers (Ex designation).
The Circuit Group for each jumper is the designation found in the board schematic. See section 0,
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Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
Location
Circuit Group
Default
Function
J8
MCU Mode Config
Shunt on pins 1-2
Sets the MCU Mode to boot from Internal Flash
E19
Open
Connects signal P212 to MCU
E24
Closed
Connects 12.000 MHz Crystal to MCU
E22
32K XTAL
Open
Connects signal P215 to MCU
E26
Closed
Connects 32.768 kHz Crystal to MCU
E10
AVCC0-> +3V3MCU
Closed
Connects +3V3MCU to AVCC0
E2
Capacitive Touch-Button
Closed
Enable/Disable Capacitive Touch-Button
E28
EXT VCL and VCL CAP
Open
Connects VCL to MCU
E32
J-Link
Closed
Connects the S124 MCU to the J-Link signal JLED
E34
Closed
Connects the S124 MCU to the J-Link signal
TDO(/SWO) P109
E37
Closed
Connects the S124 MCU to the J-Link signal
E38
Closed
Connects the S124 MCU to the J-Link signal
P300/SWCLK
E35
J-Link® OB USB
Closed
Connects the J-Link OB USB 5V input to the primary
E31
JTAG Connector
Open
JTAG Ground Detect. Connects the JTAG connector
pin 9 to Ground.
E14
Open
Connects VCC_USB_LDO to MCU pin 40
E8
Closed
Connects +3V3MCU to MCU pin 40
E15
Closed
Connects MCU pin 43 to capacitor
E16
USB FS
Closed
Connects MCU pin 38 to signal USB_N
E20
Open
Connects MCU pin 39 to signal USBPH_P
E3
User LED
Closed
Enable/Disable User LED
E4
User Push-Button
Closed
Enable/Disable User Push-Button switch
Design and Manufacturing Information. Functional details for many of the listed jumpers may be found in
section 5.4, Connectivity and Settings and section 5.6, Additional Features.
Table 1. Default Jumper Settings
Open/Closed
E18 12M XTAL Open Connects signal P213 to MCU
E23 Closed Connects 12.000 MHz Crystal to MCU
E1 3.3 V Linear Regulator Closed Alternate 3.3 V source (+3V3JLOB)
E25 Closed Connects 32.768 kHz Crystal to MCU
E27 Open Connects signal P214 to MCU
E11 AVSS0->GND Closed Connects AVSS0 to Ground
E5 Open Connects signal P115J to Capacitive Touch-Button
E29 Closed Connects MCU pin 15 (VCL) to capacitor
E33 Closed Connects the S124 MCU to the J-Link signal
RESET#
P108/SWDIO
5V->3.3V voltage regulator
E13 LDO and VCC USB Open Connects VCC_USB_LDO to MCU pin 41
E7 Closed Connects +3V3MCU to MCU pin 41
E12 P205 or TSCAP-A Open Connects MCU pin 43 to signal P205
E30 USB Device Interface Closed Connects the Device USB 5V input to the MCU
E17 Closed Connects MCU pin 39 to signal USB_P
E21 Open Connects MCU pin 38 to signal USBPH_N
E36 User Potentiometer Open Enable/Disable User Potentiometer
E6 VBAT +3V3_MCU Closed Dual Jumper. Pins 1-3 connect +3V3 to +3V3MCU.
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Pins 2-4 connect +3V3 to VBAT.
Renesas RA Microcontrollers EK-RA4M1 v1 – User's Manual
User
Modules
Config
Jumpers
USB FS
Device
12
M and
32 K
Crystals
3.3V LDO
J-Link
S124
MCU
Status
Two-Color
LED
Power
Measurement
Jumper
Reset Switch
PMOD A,
PMOD B
Main MCU
Pin Headers
User
Push
-Button
User LED
User
Potentiometer
Capacitive
Touch
Button
JTAG Port
J-Link USB
Main MCU
USB FS
Host
Programming or
Debugging PC
Voltage/
Current
Probes
Port Simulation/Simulation
or
Development Daughter Card
Renesas RA Family
RA4M1 MCU Group
Evaluation Kit
5. Hardware Layout
5.1 System Block Diagram
Figure 5. EK-RA4M1 Block Diagram
5.2 Power Requirements
EK-RA4M1 is designed for 3.3 V operation. This also means that 5 V PMOD devices cannot be used
together with the EK-RA4M1 unless they are powered separately.
The total current available from the LDO regulator for all connected circuits is 600 mA or less, depending on
the 5 V power source used.
5.2.1 Power Supply Options
EK-RA4M1 can be power e d in s ev eral dif f erent ways as described in this section.
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