Lab 3
Lab 3 Worksheet
MSP430ware DriverLib
1. Where is your MSP430ware folder located?
_________________________________________________________________________
2. To use the MSP430ware GPIO and Watchdog API, what header file needs to be included in
your source file?
#include < ________________________ >
3. How do we turn off the Watchdog timer using a DriverLib function call?
__________________________________________________ ;
GPIO Output
4. We need to initialize our GPIO output pin. What two GPIO DriverLib functions setup Port 1,
Pin 0 (P1.0) as an output and set its value to “1”?
_____________________________________________________________________;
_____________________________________________________________________;
5. Using the _delay_cycles() intrinsic function (from the last chapter), write the code to blink an
LED with a 1 second delay setting the pin (P1.0) high, and then low?
#define ONE_SECOND 800000
while (1) {
//Set pin to “1” (hint, see question 4)
______________________________________________________________ ;
_delay_cycles( ONE_SECOND );
// Set pin to “0”
_______________________________________________________________ ;
_delay_cycles( ONE_SECOND );
}
Check your answers against ours … see the Chapter 3 Appendix.
MSP430 Workshop - Using GPIO with MSP430ware 3 - 21
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