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Bob Feretich
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2018-07-20
2023-06-14
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Re: stm32f746disc sdmmc with fatfs make problem while read or open file in 4 bit mode
2018-06-19
Posted on June 20, 2018 at 07:37If reducing the clock to 16 MHz fixed the problem, then...Verify that STM32F7 I/O compensation was turned on.Verify that all the SDIO interface pins were set to 'fast' (50 MHz) edge speeds. They default to 2MHz.
