TMS320F28379D: Contents of RAM after Watch Dog Reset

Anil Singhal

Part Number: TMS320F28379D

I am trying to use a memory location for preserving some state after a watch dog reset. I noticed during debug that all memory contents, at least M0, M1, are reset to zero. Is there a location that can be used for such a purpose?

I thought 0x0000 would be a good choice since the TI boot does not touch that location but it doesn't work.

over 7 years ago

0 Vivek Singh over 7 years ago

TI__Guru** 113885 points

Anil,

RAMs are cleared after watchdog so you can not use it. How about storing it in the Flash?

Vivek Singh

0 Anil Singhal over 7 years ago in reply to Vivek Singh

Intellectual 810 points

Possible? Is there a limitation on read/write cycles on Flash? Also any register.. such as counter can be used?

0 Vivek Singh over 7 years ago in reply to Anil Singhal

TI__Guru** 113885 points

Yes, there is limitation on read/write cycles for flash. If you are not using HIBERNATE feature on this device then you can use "IORESTOREADDR" register. It has only 22bits though. I hope that is enough.

Regards,

Vivek Singh

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TMS320F28379D: Contents of RAM after Watch Dog Reset