Texas Instruments MSP430 Student Guide

MSP430ware (DriverLib)
Chapter Topics
Using GPIO with MSP430ware ................................................................................................... 3-1
MSP430ware (DriverLib) ........................................................................................................... 3-3
Installing MSP430ware ......................................................................................................... 3-3
DriverLib ................................................................................................................................ 3-4
DriverLib Modules ................................................................................................................. 3-5
Programming Methods – Summary ...................................................................................... 3-5
MSP430 GPIO .......................................................................................................................... 3-6
GPIO Basics .......................................................................................................................... 3-6
Input or Output .................................................................................................................. 3-7
GPIO Output ..................................................................................................................... 3-8
GPIO Input ........................................................................................................................ 3-9
Drive Strength ................................................................................................................. 3-10
Flexible Pin Useage (Muxing) ............................................................................................. 3-11
Pin Selection ................................................................................................................... 3-12
Port Mapping ............................................................................................................... 3-13
Summary ............................................................................................................................. 3-14
Before We Get Started Coding ............................................................................................... 3-16
1. #Include Files .................................................................................................................. 3-16
2. Disable Watchdog Timer ................................................................................................. 3-17
3. Pin Unlocking (Wolverine only) ....................................................................................... 3-18
Lab 3 ....................................................................................................................................... 3-19
Lab 3 Worksheet ................................................................................................................. 3-21
MSP430ware DriverLib ................................................................................................... 3-21
GPIO Output ................................................................................................................... 3-21
Lab 3a – Blinking an LED.................................................................................................... 3-22
??? .............................................................................................................................. 3-23
Add MSP430ware DriverLib ........................................................................................ 3-24
Add the Code to main.c ............................................................................................ 3-26
Debug .......................................................................................................................... 3-27
Lab 3b – Reading a Push Button ........................................................................................ 3-29
GPIO Input Worksheet .................................................................................................... 3-29
File Management ........................................................................................................ 3-30
Add Setup Code (to reference push button) ............................................................... 3-32
Modify Loop ................................................................................................................. 3-33
Verify Code.................................................................................................................. 3-34
Optional Exercises .............................................................................................................. 3-34
Chapter 3 Appendix ................................................................................................................ 3-35
3 - 2 MSP430 Workshop - Using GPIO with MSP430ware

Texas Instruments MSP430 Specifications

General

Brand	Texas Instruments
Model	MSP430
Category	Microcontrollers
Language	English