How to differentiate between POR, External RESET, Reset caused by Watchdog Timer in TIVA TM4C129x MCU?

Sahil Khan98

I need to know how to differentiate between POR, External RESET, Reset caused by Watchdog Timer in TIVA TM4C129x MCU. RESC (Reset Cause) register always given a value 0x12b. That is why we are not able to check the cause of reset. Need help.

over 8 years ago

0 Benjamin Moore over 8 years ago

TI__Mastermind 30760 points

Hi Sahil,

I'm going to move this to the TM4C MCU forum so the Tiva experts can help you out.

Best Regards,
Ben

0 Amit Ashara over 8 years ago

TI__Guru**** 244400 points

Hello Sahil

Are you clearing the register before logging the next source of reset?

0 Sahil Khan98 over 8 years ago in reply to Amit Ashara

Prodigy 40 points

Hi Amit,

No we are not clearing the register. Do we need to clear it? Which bits can we write?

0 Sahil Khan98 over 8 years ago in reply to Benjamin Moore

Prodigy 40 points

Thanks

0 Amit Ashara over 8 years ago in reply to Sahil Khan98

TI__Guru**** 244400 points

Hello Sahil

All bits are writable. Writing a 0 clears the RESC register

Arm-based microcontrollers

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How to differentiate between POR, External RESET, Reset caused by Watchdog Timer in TIVA TM4C129x MCU?