tlv_ex1_checkChecksum.c

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/*******************************************************************************
 * MSP430i2xx TLV - Check Checksum
 *
 * Description: In this example, the checksum of the TLV is checked to make sure
 * the TLV has not been corrupted. The LED is turned on if there are no errors
 * with the TLV. To cause an error, backup the TLV first and then erase part of
 * it. This will cause a checksum error to occur and the LED will not turn on.
 *
 *
 *                MSP430i2041
 *             ------------------
 *         /|\|                  |
 *          | |                  |
 *          --|RST               |
 *            |              P1.4|-->LED
 *            |                  |
 *            |                  |
 *            |                  |
 *            |                  |
 *
 * Author: Zack Lalanne
 ******************************************************************************/
 
#include "driverlib.h"
 
int main(void) {
 
    bool result;
 
    // Stop the WDT
    WDT_hold(WDT_BASE);
 
    // Check the TLV checksum
    result = TLV_performChecksumCheck();
 
    // Turn on LED if test passed
    if(result) {
        GPIO_setOutputHighOnPin(GPIO_PORT_P1, GPIO_PIN4);
    } else {
        GPIO_setOutputLowOnPin(GPIO_PORT_P1, GPIO_PIN4);
    }
 
    // LED for indicating checksum result
    GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN4);
 
    __bis_SR_register(LPM0_bits);
}