Reboot on port input

Evgeny Lunev

Intellectual 475 points

Other Parts Discussed in Thread: CC2541, CC2540

Hi,

I'm writing an application for CC2541-based device and one of my tasks is to reboot on triggering from some port

(chip's pin - P0_6 to be precise) .

So I'm thinking about best way to do it -

my guess:

1. Configure the port as a button (with interruptions etc.) and handle events from it

as they're send by OSAL as SYS_EVENT_MSG (KEY_CHANGE).

2. Reboot through watchdog register (smth. like st(WDCTL = 0xAB; WDCTL = 0x5B;).

Or can smbd. propose more correct proper way?

Thank you,

BR,

Evgeny.

over 13 years ago

0 hec over 13 years ago

TI__Genius 10955 points

Regarding 2, it is easier and quicker to reboot by writing 1 to the FORCE_RESET bit (bit 5) of SRCRC. This is possible on CC2541, but not on CC2540 (on that device, the watchdog timer has to be used as you suggested).

0 Evgeny Lunev over 13 years ago in reply to hec

Intellectual 475 points

and re: 1) - is it better to handle on application level (as a message from OSAL about key state change)?

Or insert a chunk of code into some function? (hal_driver.c or some other..).

Evgeny

Bluetooth®︎

Bluetooth forum

Reboot on port input