MSP430-PG2231 development board Users Manual

All boards produced by Olimex are ROHS compliant

Revision A, June 2011Copyright(c) 2011, OLIMEX Ltd, All rights reserved

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INTRODUCTION:

MSP430-PG2231 is prototype board with MSP430G2231IPW14R ultralow-power mixed signal microcontroller from Texas Instruments. MSP430G2231IPW14R has a built-in 16-bit timer, ten I/O pins, a 10-bit A/D converter and built-in commu-nication capability using synchronous protocols (SPI or I2C). On the board are available JTAG connector, two status leds, two user buttons and prototype area, where you can connect your own circuits. All this allows you to build a diversity of applications to be used in different applications.

BOARD FEATURES:

• Microcontroller MSP430G2231IPW14R

• JTAG interface

• Two user's buttons

• Two status leds

• Power-on led

• Reset button

• Prototype area

• FR-4, 1.5 mm, soldermask, component print

• Dimensions:70x50mm (2.76 x 1.97")

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ELECTROSTATIC WARNING:

The MSP430-PG2231 board is shipped in protective anti-static packaging. The board must not be subject to high electrostatic potentials. General practice for working with static sensitive devices should be applied when working with this board.

BOARD USE REQUIREMENTS:Cables: The cable you will need depends on the programmer/debugger you use. If you use MSP430-JTAG-TINY, MSP430-JTAG-TINY-V2 or MSP430-JTAG-ISO, you will need USB A-B cable. If you use MSP430-JTAG, you will need LPT cable.

Hardware: Programmer/Debugger MSP430-JTAG, MSP430-JTAG-TINY, MSP430-JTAG-TINY-V2, MSP430-JTAG-ISO by OLIMEX, or other compatible programming/debugging tool.

PROCESSOR FEATURES:

MSP430-PG2231 board use MSP430G2231IPW14R microcontroller from Texas Instruments with these features:

− Low Supply-Voltage Range: 1.8 V to 3.6 V

− Ultra-Low Power Consumption

− Active Mode: 220 μA at 1 MHz, 2.2 V

− Standby Mode: 0.5 μA

− Off Mode (RAM Retention): 0.1 μA

− Five Power-Saving Modes

− Ultra-Fast Wake-Up From Standby Mode in Less Than 1 μs

− 16-Bit RISC Architecture, 62.5-ns Instruction Cycle Time

− Basic Clock Module Configurations

− Internal Frequencies up to 16 MHz With One Calibrated Frequency

− Internal Very Low Power Low-Frequency (LF) Oscillator

− 32-kHz Crystal

− External Digital Clock Source

− 16-Bit Timer_A With Two Capture/Compare Registers

− Universal Serial Interface (USI) Supporting SPI and I2C

− Brownout Detector

− 10-Bit 200-ksps A/D Converter With Internal Reference, Sample-and-Hold, and Autoscan

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− Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse

− On-Chip Emulation Logic With Spy-Bi-Wire Interface

For more information about this microcontroller, see here.

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BLOCK DIAGRAM:

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SCHEMATIC:

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3.3V

3.3V

3.3V

3.3V

470uF/16VDC

1uF

47uF/6.3V

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100n

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6pF

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100K

560R

/5%

560R

/5%

330R

330R

560R

/5%

100R

100R

100R

33K

33K

SW-T

AKTI

T118

5AU

2

3V3

3V3

3V3

MC

P17

02-3

302E

/MB

BU

T1

BU

T1

BU

T2

BU

T2

LED

1

LED

1

LED

2

LED

2

3.3V

B1

B2

C1

C2

C3

C4

C5

C6

C7

C8

C9

C10

G1

GN

D

GN

D-

12

34

56

78

910

1112

1314

JTA

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LED

1LE

D2

P1.0

P1.1

P1.2

P1.3

P1.4

P1.5

P1.6

P1.7

P2.

6

P2.

7

PW

RP

WR

_JA

CK 1

2

P_I

N

12

P_O

UT

Q1

R1

R2

R3

R4

R5

R6

R7

R8

R9

R10

R11

R12

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RST

DV

CC

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P1.

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CK

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LK/T

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P1.

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O/S

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8

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DI/S

DA

/TD

O/T

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9

RS

T/N

MI/S

BW

TDIO

10TE

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SB

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BOARD LAYOUT:

POWER SUPPLY CIRCUIT:

MSP430-PG2231 is typically power supplied with (3 ÷ 9) VAC and (5 ÷ 13) VDC.

The programmed board power consumption is about 10 mA with all peripherals enabled.

RESET CIRCUIT:MSP430-PG2231 reset circuit includes MSP430G2231IPW14R pin 10

(RST/NMI/SBWTDIO), JTAG connector pin 11, R11 (33kΩ), R10 (100Ω) and RESET button.

CLOCK CIRCUIT:

Quartz crystal 32.768 kHz is connected to MSP430G2231IPW14R pin 12 (XOUT/P2.7) and pin 13 (XIN/P2.6/TA0.1).

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JUMPER DESCRIPTION:

P_INWhen this jumper is closed, the board is power supplied by the standard JTAG pin 2. This is only possible when the consumption of the board is not very high which is typically the case with MSP430 microcontrollers. If this jumper is open the board should be power supplied by another external source. This jumper and P_OUT should always be reversely open/closed, i.e. if P_IN is closed, P_OUT should be open and vice versa. Default state is closed.

P_OUTWhen this jumper is closed, the board is power supplied not by the JTAG but from external source. Then the JTAG has to synchronize with the working voltages which is done through this line. This is especially important when debugging with JTAG. This jumper and P_IN should always be reversely open/closed, i.e. if P_OUT is closed, P_IN should be open and vice versa.

Default state is open.

INPUT/OUTPUT:

Status led (yellow) with name LED1, connected to MSP430G2231IPW14R pin 2 (P1.0/TA0CLK/ACLK).

Status led (green) with name LED2, connected to MSP430G2231IPW14R pin 3 (P1.1/TA0.0).

Power-on LED (red) with name PWR – this LED shows that +3.3V is applied to the board.

User button with name B1 connected to MSP430G2231IPW14R pin 4 (P1.2/TA0.1).

User button with name B2 connected to MSP430G2231IPW14R pin 5 (P1.3).

User button with name RESET connected to MSP430G2231IPW14R pin 10 (RST/NMI/SBWTDIO).

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EXTERNAL CONNECTORS DESCRIPTION:JTAG:

Pin # Signal Name Pin # Signal Name

1 P1.7 2 Via P_IN to 3.3V

3 P1.6 4 Via P_OUT to 3.3V

5 P1.5 6 NC

7 P1.4 8 TEST

9 GND 10 NC

11 RST 12 NC

13 NC 14 NC

PWR_JACK:

Pin # Signal Name

1 Power Input

2 GND

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Prototype area:

Pin # Signal Name

1 3.3V

2 P1.0 (LED1)

3 P1.1 (LED2)

4 P1.2 (BUT1)

5 P1.3 (BUT2)

6 P1.4

7 P1.5

8 P1.6

9 P1.7

10 P2.6

11 P2.7

12 RST

13 GND

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MECHANICAL DIMENSIONS:

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AVAILABLE DEMO SOFTWARE:

– MSP430PG2231_Example

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ORDER CODE:

MSP430-PG2231 - assembled and tested board

How to order?

You can order to us directly or by any of our distributors.Check our web www.olimex.com/dev for more info.

Revision history:

Board's revision Rev. A, July 2010

Manual's revision Rev. A, edited June 2011

- in reset circuit C7 changed to NA (not available)

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Disclaimer:

© 2011 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd. Other terms and product names may be trademarks of others.The information in this document is provided in connection with Olimex products. No license, express or implied or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Olimex products. Neither the whole nor any part of the information contained in or the product described in this document may be adapted or reproduced in any material from except with the prior written permission of the copyright holder.The product described in this document is subject to continuous development and improvements. All particulars of the product and its use contained in this document are given by OLIMEX in good faith. However all warranties implied or expressed including but not limited to implied warranties of merchantability or fitness for purpose are excluded.This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product.

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