AT91SAM7X256 Reset pin (NRST)

gustavo.valeira · **Joined:** Fri Sep 18, 2009 8:31 pm **Posts:** 2

Hi everbody,

I'm trying to do the reset when i use a jumper to ground the NRST pin, but the ARM don't restart. I tried several things, but none succeded. Does anyone have any clue to how reset the ARM using a external signal in the NRST pin?

Thanks,
Gustavo

gerhardf · **Joined:** Thu Dec 02, 2004 2:28 pm **Posts:** 454

gustavo.valeira wrote:

I'm trying to do the reset when i use a jumper to ground the NRST pin, but the ARM don't restart. I tried several things, but none succeded. Does anyone have any clue to how reset the ARM using a external signal in the NRST pin?

does your software ename the user reset?
if not take a look at the datasheet, chapter "NRST Manager".

regards
gerhard

mjbcswitzerland · **Posted:** Fri Sep 25, 2009 5:32 pm

Hi

To configure the pin as reset input add code at the start of your program to do the following:

RSTC_MR = (RESET_KEY | URSTEN); // // reset input causes a user reset

Regards

Mark

http://www.uTasker.com

AT91SAM7X256 Reset pin (NRST)

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