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TMS320F28075: Reset directly by register without using watchdog timer

Kenley
Intellectual 1755 points
Part Number: TMS320F28075

Hi team,

Do you have any suggestion on how to reset the CPU while the watchdog timer is disabled ?

Which register should we write to reset it ?

Customer's system :

C2PROG（PC）←USB→　MSP430　←UART→　TMS320　（Firmware Update）

Normal mode: watchdog timer ON

During the maintenance mode, there is a moment when the watchdog timer is OFF and by using C2PROG ( a tool to update the firmware of TMS320 from CPU by UART).

Maintenance mode sequence:

MSP430 detects firmware rewrite mode → Controls TMS320 boot mode port from MSP430 PORT → Sends signal to TMS320 → TMS320 writes directly to register and resets → Reboot TMS320 On chip boot program enters serial boot mode, Communicate with C2PROG.

If you have any questions, please let me know and I will check it with customer.

Thank you in advance.

Best Regards,

Kenley