F29H850TU: WDT on F29H850TU (multicore system)

Mrinali Lothey

Part Number: F29H850TU
Other Parts Discussed in Thread: SYSCONFIG,

Tool/software:

I am Following this thread to set up a watchdog timer on F29H850TU using sysconfig.

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/653999/tms320f28377d-boot-problem-after-watchdog-reset-of-cpu2I

It looks like SysCtl_getNMIFlagStatus API is not exposed in f29h85x-sdk_1_00_00_00 sdk.

What is the correct method to set up watchdog timer in multicore application?

5 months ago

0 Anand Kulkarni 5 months ago

TI__Intellectual 810 points

Hi,

You can refer to the 'watchdog_ex1_service' example present in the SDK.

regards,

Anand

0 Mrinali Lothey 5 months ago in reply to Anand Kulkarni

Prodigy 100 points

Thank you Anand Kulkarni . Yes I did refer to the example which is for a single core system. My question is specifically wrt a multicore system and the issue discussed in this thread.

Does implementing WDT in a multicore system require additional code to ensure that a system reset on Core 2 / Core 3 will restart execution from main?

0 Mrinali Lothey 5 months ago in reply to Mrinali Lothey

Prodigy 100 points

Follow up question: If I want to perform a system reset when WDT Times out in Core 2 or Core 3, will need to utilize IPC to command CPU1 to perform the reset?

0 Anand Kulkarni 4 months ago

TI__Intellectual 810 points

Hi,

When WDG reset occurs on either CPU2 or CPU3, it only resets the corresponding core.

If you want to reset CPU1, then you have to implement IPC to create CPU1 WDG so that XRSn is generated which resets entire SoC.

regards,

Anand

C2000™︎ microcontrollers

C2000 microcontrollers forum

F29H850TU: WDT on F29H850TU (multicore system)