Reconfigure watch dog after Soft Reset

RE: Reconfigure watch dog after Soft Reset

Hung Bui — Thu, 21 Jul 2016 07:49:07 GMT

@Thangaraj: You can use "r" command, make sure you have selected the reset type (RSetType) to 2 = RESETPIN.

RE: Reconfigure watch dog after Soft Reset

Thangaraj — Wed, 20 Jul 2016 15:54:20 GMT

We are using JLinkExe , Is there Any comment that is similiar to "nrfjprog -p"

RE: Reconfigure watch dog after Soft Reset

Hung Bui — Wed, 20 Jul 2016 12:03:52 GMT

I don't think it will stop the WDT. So a reset needed.

I would suggest to do a pin reset (nrfjprog -p) after you erase the chip. Or you can put a delay to make sure the WDT trigger the reset before you flash the new firmware.

RE: Reconfigure watch dog after Soft Reset

Thangaraj — Wed, 20 Jul 2016 11:03:00 GMT

If do erase , Will WDT Config will reset ?

Am doing erase before flashing everytime

RE: Reconfigure watch dog after Soft Reset

Hung Bui — Wed, 20 Jul 2016 09:08:34 GMT

Ok, I see. Initialize the peripheral can take too much time and without being feed the dog will reset the board. If you want to avoid that, I would suggest to do an erase all on your board, before you flash the new firmware. This is to avoid the WDT from running and reset the board.

RE: Reconfigure watch dog after Soft Reset

Thangaraj — Wed, 20 Jul 2016 09:00:58 GMT

Inside peripheral init I have SPI UART I2C inits , display and other sensor inits too .. When I do Hardreset I mean remove my battery and connect again WDT is not rebooting, When I do flash from IDE , This time its a softreset and the previous WDT configuration remain same and the board reboots ..

RE: Reconfigure watch dog after Soft Reset

Hung Bui — Wed, 20 Jul 2016 07:59:46 GMT

@Thangaraj: What do you have inside peripheral_init() ?

How could the WDT reboots the system when it has not been initialized and started ??

RE: Reconfigure watch dog after Soft Reset

Thangaraj — Wed, 20 Jul 2016 03:59:33 GMT

This is my flow .

main(){
gpio_init();
peripheral_init(); // here it reboots everytime if I do a flash and it works after a wdt reset 
timers_init()'
watch_dog_init();
while(1){
feed();
do_something();
}

I made sure reset is because of wdt by reading RESETREAS register.

RE: Reconfigure watch dog after Soft Reset

Hung Bui — Tue, 19 Jul 2016 11:31:28 GMT

@Thangaraj: How did you feed the watchdog ? Do you mean that every time, the first run after you program the firmware, you can't feed the dog and it will trigger a WDT reset ? Have you experienced the same with our example ? If you test with your code , could you edit your question and attach the code ?