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Which register can set the timeout for the FMC's NWAIT signal to prevent a crash?

Andy_Zhou
Associate

Hi

Chip:stm32h723

Peripheral:FMC

Configuration:FMC_NORSRAM_DEVICE , FMC_NORSRAM_EXTENDED_DEVICE;

FMC_ACCESS_MODE_A

FMC_ASYNCRONOUS_WAIT_ENABLE

If the extended device(eg. FPGA) do not assert NWAIT,the program on stm32h723 will crash. I want to know which register can set the timeout for the NWAIT signal to prevent a crash?

 

Best regards,

Andy Zhou

1 ACCEPTED SOLUTION

Accepted Solutions
mƎALLEm
ST Employee

Hello,

Unfortunately, there is no way to recover from that situation except to reset the CPU for example using the watchdog.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.

View solution in original post

1 REPLY 1
mƎALLEm
ST Employee

Hello,

Unfortunately, there is no way to recover from that situation except to reset the CPU for example using the watchdog.

To give better visibility on the answered topics, please click on "Accept as Solution" on the reply which solved your issue or answered your question.