Kinetis MicrocontrollersのトピックRe: K40 IAR: Software reset

K40 IAR: Software reset

mf_kappa — Sun, 03 Feb 2013 12:32:07 GMT

Please advice me howto perform SW reset to the chip: go to c-startup, clear stack, initialize global variables and so on.

(There is also option to force watchdog timeout in order to perfrom reset.)

Thanks

dereksnell — Sun, 03 Feb 2013 14:29:53 GMT

Hi MF,

There are others posts with the details for executing a software reset in the Kinetis K Series using the Cortex-M4 core.

Check out this post and solution:

mf_kappa — Sun, 10 Feb 2013 07:25:59 GMT

Hi Derek

Thanks for your answer.

I Try to run this code in the post, but it didn't make SW reset:

temp_AIRCR = (unsigned int)scb->AIRCR;

temp_AIRCR &= 0x0000ffff;

temp_AIRCR |= 0x05Fa0000;

temp_AIRCR |= SCB_AIRCR_SYSRESETREQ_MASK;

scb->AIRCR = temp_AIRCR;

Do I miss something important?

Another question:

I try to run this routine, from crt0.s file:

__startup();

This routine make SW reset. Can I use it instead of AIRCR register?

Thanks