Posted on July 10, 2008 at 09:36using timer interrupt to refresh watchdog counter before generating a watchdog reset can solve the problem,and remains in LPWFI mode!
but there are 2 status conflict with described in STR71X reference manual!
according to reference manual of STR71X, in LPWFI mode,program stop execution and interrupt will cause wake up from LPWFI mode,
but what we have seen
1, timer interrupt works in LPWFI mode, but the MCU does not wake up from LPWFI mode!
2, the instructions in timer interrupt do execute(Timer flags clear and refresh watchdog counter to avoid a system reset) despite the MCU still in LPWFI mode!
can someone explain it?
