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Error when reading memory mapped memory from STM32CubeIDE debugger

Gpeti
Senior II

I'm working on a STM32H753 (with EVAL2 eval board) on which I have connected an external QSPI Flash.

Right now the CPU is @ 400MHz, the QSPI is configured in single IO (SPI) @ 12.5Mhz.

I can erase, program and read the Flash in indirect mode, then read it in memory mapped mode (from my software).

However when I try to read the Flash in memory mapped mode from the debugger I have some errors. They don't look random, there is a clear pattern (as you have guessed the flash is programmed with successive values from àx00 to 0xFF):

0693W00000NqzioQAB.jpg 

Any idea ?

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