Wdt interrupt

David Ramirez

Other Parts Discussed in Thread: MSP430F2002

Hi everyone:

I'm making a program using WDT interrupt in the msp430f2002 and also enable the NMI interrupt but not is if this well this part of code your answers thank you.

WDTCTL = WDTPW+WDTTMSEL+WDTCNTCL+WDTSSEL+WDTIS1+WDTNMI+WDTNMIES;
IE1 = WDTIE;
IE1 |= NMIIE;
_BIS_SR(GIE);

over 10 years ago

0 Ilmars over 10 years ago

Guru 46710 points

Do you have WDT ISR and NMI ISR functions?

Did you check source code examples?

http://www.ti.com/lit/zip/slac080

Especially *_nmi.c and *_wdt_??.c

0 Tony Philipsson over 10 years ago in reply to Ilmars

Guru 12050 points

You can use Medley to save on all that text.

mov.w #WDT_MDLY_32+WDTNMI+WDTNMIES,&WDTCTL ; ~32ms interval timer and NMI on falling edge
bis.b #WDTIE+NMIIE,&IE1 ; Enable WDT interrupt

I always stop WDT first.

mov.w #WDTPW+WDTHOLD+WDTNMI+WDTNMIES,&WDTCTL ; NMI on falling edge
bis.b #NMIIE,&IE1 ; Enable NMI interrupt

0 David Ramirez over 10 years ago in reply to Ilmars

Intellectual 870 points

Thank you for the prompt response but two interruptions can be activated in a moment?

0 Tony Philipsson over 10 years ago in reply to David Ramirez

Guru 12050 points

Sure, NMI and WDT are not the same interrupt.
You can choose either one or both to be on.

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Wdt interrupt