MSP430 WDT-EEWORLD

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MSP430 WDT has two modes: 1. Watchdog 2. Timer

We will only use the timer mode this time. Note that there are two places to determine the timing time: 1. Clock source selection 2. Interval time selection

The clock source can be: SMCLK or ACLK

There are only four time intervals

time = count/f

time interval, count the four numbers above, f the frequency of the clock source selected

For example, if the SMCLK frequency is 1MHz and WDTISX is 10, i.e. 512, the interrupt time is 0.5ms.

WDTCTL = WDT_MDLY_32; // Set Watchdog Timer interval to ~30ms
IE1 |= WDTIE; // Enable WDT interrupt

// Watchdog Timer interrupt service routine
#pragma vector=WDT_VECTOR
__interrupt void watchdog_timer(void)
{

}

Keywords：MSP430 WDT Reference address：MSP430 WDT

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