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AK.15 · 2022-08-31

AK.15 · 2022-08-31

what are the possibility if the 4 bit mode not working?

AK.15 · 2022-08-31

Enable internally pull-ups on all lines except sdio _clk

AK.15 · 2022-08-31

I rechecked the wiring,it is okay.If any issue in my configuration,please check thatThe relevant part of code:fr = f_mount(&FatFs, "", 1); if(fr==FR_OK) { HAL_UART_Transmit(&huart3, "OK to mount\n\r", 15, 1000); } ...

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Hello, I've tried to test sdcard with fatfs on STM32F429ZI on NUCLEO-F429ZI board. The same code was working in SD 1 bit mode((no DMA, no RTOS).when i configure SD 4 bit mode f_mount returns FR_NOT_READY.

Re: Hello, I've tried to test sdcard with fatfs on STM32F429ZI on NUCLEO-F429ZI board. The same code was working in SD 1 bit mode((no DMA, no RTOS).when i configure SD 4 bit mode f_mount returns FR_NOT_READY.

Re: Hello, I've tried to test sdcard with fatfs on STM32F429ZI on NUCLEO-F429ZI board. The same code was working in SD 1 bit mode((no DMA, no RTOS).when i configure SD 4 bit mode f_mount returns FR_NOT_READY.

Re: Hello, I've tried to test sdcard with fatfs on STM32F429ZI on NUCLEO-F429ZI board. The same code was working in SD 1 bit mode((no DMA, no RTOS).when i configure SD 4 bit mode f_mount returns FR_NOT_READY.