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MSP430AFE253
User Manual
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Casco Logix MSP430AFE253, CL-MSPDB-AFE User Manual

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MSP430AFE253 Development Board
(CL-MSPDB-AFE)
User Guide
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 1
Table of Contents
3.1 Mini USB Connector ...................................................................................................................................4
3.2 External Power Connector ..........................................................................................................................4
3.3 Analog Connections ....................................................................................................................................5
3.4 GPIO Header ...............................................................................................................................................5
3.5 3.3V Jumper ................................................................................................................................................6
3.6 TX & RX Jumper ..........................................................................................................................................6
3.7 Spy-by-Wire Debug Header ........................................................................................................................6
3.8 Reset Pushbutton .......................................................................................................................................7
3.9 Blue User LED .............................................................................................................................................7
3.10 User Switch 1 ..............................................................................................................................................7
3.11 User Switch 2 ..............................................................................................................................................8
3.12 UART RX & TX LED ......................................................................................................................................8
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 2
1 Revision History
Date
Revision
Change
2014-Aug-14
1.0
First Release
2014-Aug-23
1.1
Updated PCB layout images and schematic per hardware rev 4
2014-Aug-26
1.2
Updated BOM
2014-Sep-16
1.3
Updated schematic and PCB drawings
2 Features
Texas Instruments MSP430AFE253 with 2kB Flash and 512 bytes of RAM, plus 24-bit A/D 8MHz Ceramic Resonator 8-position 100-mil pitch screw terminal block for 3 differential analog inputs, V
and ground
ref
8-position 100-mil pitch male pin header for easy access to 6 GPIO pins, power and ground Mini USB connector supplies 5V power and access to virtual com port for serial On-board USB-to-serial converter IC for easy serial port communication and 3.3V supply 1 pushbutton for hardware reset of the MSP430 MCU 2 pushbuttons for user input Texas Instruments’ Spy-Bi-Wire debug interface via 4-pin 100-mil pitch male pin header Blue LED for application-defined visual feedback RX and TX LED’s for visual feedback of USB-to-serial converter communication activity 1x3 x 100-mil pitch male pin header for external 3.3V power input and ground 2 removable jumpers for isolating the RX/TX lines from the USB-to-serial converter IC USB-to-serial converter can be completely removed from the circuit via 3 removable jumpers;
one for UART RX, one for UART TX and one for the 3.3V supply. Allows verification of ultra-low power consumption features of your application on the MSP430. Alternatively, provides easy connection of other TTL UART hardware, such as GPS, Bluetooth modules, etc.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 3
3 Board Features
Mini USB Connector
User
Switch 1
User
Switch 2
Blue
User LED
3.3V Power & Ground
Hardware
Reset
TX/RX/3.3V
Jumpers
Spy-Bi-Wire
Debug
Header
(3) 24-bit Differential A/D Converter Inputs A/D Reference Voltage and A/D Ground
GPIO Breakout,
3.3V Power
and Ground
MSP430AFE253
FTDI FT230XQ
USB-to-Serial
RX LED
TX LED
3.1 Mini USB Connector
The mini USB connector (J1) provides a serial interface via the FTDI FT230XQ USB-to-Serial converter IC. Additionally this chip provides the 3.3V regulated supply from the 5V supplied by the USB port.
The UART RX and TX lines from the FT230XQ go directly to the MSP430AFE253 through removable jumpers. This allows a means of disconnecting the FT230XQ chip from the MSP430AFE253 UART in case other UART hardware needs to be connected (i.e. UART display, GPS chip, etc). These jumpers are labeled in the silkscreen on the back of the MSP430AFE253 Development Board.
The regulated 3.3V power from the FT230XQ can also be disconnected via jumper (P2). This allows a means of using an alternate power supply without back feeding into the FT230XQ chip. This is especially important when trying to achieve the lowest possible power consumption (i.e. battery-powered applications, etc.). This jumper is labeled in the silkscreen on the back of the MSP430AFE253 Development Board.
3.2 External Power Connector
The external power connector (P1) is a 100-mil pitch male pin header and provides a means of connecting a battery or other external power source. There are two pins provided for 3.3V and one pin for Ground, as some battery connectors skip a position between the positive and negative terminals.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 4
3.3 Analog Connections
P1.1
P1.5
P1.6
P2.0
P2.6
P2.7
3.3V
GND
Channel 0 - Positive
Channel 0 - Negative
Channel 1 - Positive
Channel 1 - Negative
Channel 2 - Positive
Channel 2 - Negative
Analog Voltage Reference
Analog Reference Ground
The 8-postion screw terminal block (TB1) offers an easy method of connecting external analog sensors, such as current transformers, voltage taps, temperature sensors, pressure sensors, strain gauges and other high­sensitivity wheatstone bridge outputs to the 24-bit analog-to-digital front end. The terminal block pinout is as follows:
3.4 GPIO Header
The GPIO header (P) provides a means of utilizing other GPIO pins or other unused peripherals on the MSP430AFE253. Refer to the MSP430AFE253 datasheet and family user guide for GPIO pin functionality and peripheral availability.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 5
3.5 3.3V Jumper
RX Jumper
TX Jumper
3.3V Jumper
VCC (3.3V)
SBWTDIO
SBWTCK
GND
The 3.3V jumper (P2) provides a means of disconnecting the regulated 3.3V supply output from the FT230XQ. This allows use of an alternate power supply without back feeding into the FT230XQ chip. This is especially important when trying to achieve the lowest possible power consumption (i.e. battery-powered applications, etc.). This jumper is labeled in the silkscreen on the back of the MSP430AFE253 Development Board.
3.6 TX & RX Jumper
The RX and TX jumpers (P4 and P5 respectively) provide a means of disconnecting the FT230XQ UART lines in case other UART hardware needs to be connected (i.e. UART display, GPS chip, etc). This is especially important when trying to achieve the lowest possible power consumption (i.e. battery-powered applications, etc.). These jumpers are labeled in the silkscreen on the back of the MSP430AFE253 Development Board.
3.7 Spy-by-Wire Debug Header
The Spy-by-Wire Debug Header (P3) provides a means of connecting a debugger (e.g. MSP-FET430UIF) for program load and debug.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 6
3.8 Reset Pushbutton
Hardware
Reset
Blue
User LED
User
Switch 1
The reset pushbutton (SW3) provides ready access the MSP430AFE253 Reset pin. Pressing this will give a hard reset to the MSP430AFE253.
3.9 Blue User LED
The blue user led (D3) is connected to P1.7 and is available as an application-defined method of visual feedback.
3.10 User Switch 1
User switch 1 (SW1) is connected to P1.2 and is available as an application-defined method of tactile user input.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 7
3.11 User Switch 2
User
Switch 2
RX LED
TX LED
User switch 2 (SW2) is connected to P1.0 and is available as an application-defined method of tactile user input.
3.12 UART RX & TX LED
A green UART TX LED (D1) and red UART RX LED (D2) has been provided to indicate serial data communication activity. Using the FTDI factory default memory configuration of the FT230XQ, the green LED (D1), connected to the CBUS2 pin, blinks whenever serial data is being transmitted over USB from the board. Using the FTDI factory default memory configuration of the FT230XQ, the red LED (D2), connected to the CBUS1 pin, blinks whenever serial data is being received over USB to the board.
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.3
www.cascologix.com Page 8
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.0
www.cascologix.com Page 9
4 Schematic
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.0
www.cascologix.com Page 10
5 PCB Layers
Figure 1: Top Silkscreen
Figure 2: Top Soldermask
Figure 3: Top Copper
Figure 4: Inner 1
Figure 5: Inner 2
Figure 6: Bottom
Figure 7: Bottom Soldermask
Figure 8: Bottom Silkscreen
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.0
www.cascologix.com Page 11
Figure 9: Bottom Pastemask
Figure 10: Top Pastemask
Figure 11: Outline
Casco Logix MSP430AFE253 Development Board User Guide Rev 1.0
www.cascologix.com Page 12
6 Bill of Materials
BOM
Item
Mfg
Mfg Part#
Description
Ref Des
Pkg Size
Qty
1
Kemet
C0603C104K8RACTU
CAP CER 0.1UF 10V 10% X7R 0603
C13,C11,C6,C5,C1,C2
0603 6 2
Samsung Electro-Mechanics America, Inc
CL10B475KQ8NQNC
CAP CER 4.7UF 6.3V 10% X7R 0603
C3,C4,C7,C8,C12
0603 5 3
OSRAM Opto Semiconductors Inc
LG L29K-G2J1-24-Z
LED SMARTLED GREEN 570NM 0603
D1
0603 1 4
OSRAM Opto Semiconductors Inc
LS L29K-G1J2-1-Z
LED SMARTLED 630NM RED 0603 SMD
D2
0603 1 5
OSRAM Opto Semiconductors Inc
LB Q39G-L2N2-35-1
LED CHIPLED BLUE 470NM 0603 SMD
D3
0603
1
6
On Shore Technology Inc
USB-M26FTR
CONN USB MINI B R/A SMD
J1
1
7
Sullins
PEC36SAAN
CONN HEADER 36PS .100 SINGLE PTH
P1,P3,P6
1 8 Stackpole Electronics Inc
RMCF0603JT270R
RES 270 OHM 1/10W 5% 0603
R1,R2
0603 2 9
Stackpole Electronics Inc
RMCF0603JT1M00
RES 1M OHM 1/10W 5% 0603 SMD
R13
0603 1 10
Stackpole Electronics Inc
RMCF0603JT47K0
RES 47K OHM 1/10W 5% 0603 SMD
R3,R11
0603 2 11
Stackpole Electronics Inc
RMCF0603JT750R
RES 750 OHM 1/10W 5% 0603 SMD
R17
0603
1
12
Panasonic Electronic Components
ERJ-3GEY0R00V
RES 0.0 OHM 1/10W 0603 SMD
R14,R12
0603
2
13
Stackpole Electronics Inc
RMCF0603JT33R0
RES 33 OHM 1/10W 5% 0603 SMD
R9,R10
0603 2 14
TE Connectivity
FSMSM
SWITCH TACTILE SPST-NO 0.05A 12V
SW1,SW3,SW2
3
15
On Shore Technology Inc
OSTVN08A150
CONN TERM BLOCK 2.54MM 8POS PCB
TB1
1
16
FTDI
FT230XQ-R
USB TO SERIAL BRIDGE
U1
QFN16
1
17
Texas Instruments
MSP430AFE253IPW
IC MCU 16BIT 16KB FLASH 24TSSOP
U2
SSOP24
1
18
Murata Electronics North America
CSTCE8M00G55-R0
CER RESONATOR 8.00MHZ SMD
X2
1
19
3M
969102-0000-DA
SHUNT JUMPER .1" BLACK GOLD
N/A 3 20
FCI
67997-472HLF
CONN HEADER 72POS .100 DUAL TIN
P2,P4,P5
1
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