TDA2SX: Is watchdog reset after warm reset?

user1894496

Prodigy 90 points

Part Number: TDA2SX

Is watchdog reset after warm reset?

over 9 years ago

0 Yordan Kamenov over 9 years ago

TI__Mastermind 42515 points

Hi,

yes, the watchdog timer is reset after warm reset. Please check the TRM chapter 22.4.1.1 Watchdog Timer Features.

Regards,
Yordan

0 user1894496 over 9 years ago in reply to Yordan Kamenov

Prodigy 90 points

I have two question:

1)Can you help me to confirm if watchdog is enabled while the RESETN (BALL NUMBER is E23) pin keep active?

2)Can you help me to confirm if watchdog is enabled after warm reset?

0 Stanislav Stilyanov over 9 years ago in reply to user1894496

TI__Mastermind 25170 points

Hi,

ROM code, being first software running, uses watchdog for its own purposes (timeout booting device). See section Initialization in the TRM and run a search for 'watch'.

ROM code, upon successful handover to initial bootstrap code, disables watchdog so user code can complete and use watchdog per own requirement.

If no successful boot by ROM happens, watchdog will keep resetting the device.

Regards,

Stan

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TDA2SX: Is watchdog reset after warm reset?