About DDong.3

DDong.3 · 2018-11-08

Hi, Recently I debug STM32F413 with a SD card by SDIO interface, but failed in FATFS mount. At last, I did a simple test. The code wrote 512 bytes--0x00-0xFF(256 bytes), 0x00-0xFF(256 bytes)--to the first two sectors of SD card by HAL_SD_WriteBlocks,...

DDong.3 · 2018-11-11

As you said, the hex bytes were converted to be ASCII before they were dumped to Uart. But the result is same. After thinking about it, I guess that the fast streaming of SD card may cause the lost of SDIO fifo buffer. Then I tried some ways to test,...

DDong.3 · 2018-11-09

Hi,As you suggested, HardwareFlowControl is disabled, and call HAL_SD_GetCardState after HAL_SD_ReadBlocks to check if SDIO is HAL_SD_CARD_TRANSFER. Of course, SDIO registers were not opened. But the results look worse, only 64 bytes can be received ...

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Why SDIO of STM32F4 chip lost 0xF in FIFO buffer?

Re: Why SDIO of STM32F4 chip lost 0xF in FIFO buffer?

Re: Why SDIO of STM32F4 chip lost 0xF in FIFO buffer?