About SPfis.1

SPfis.1 · 2022-08-29

When enabled Data cache for example in main:/* Enable D-Cache---------------------------------------------------------*/ SCB_EnableDCache();I think I am supposed to uncomment L63 in sd_diskio.c to activate Cache maintenance:/* USER CODE BEGIN enabl...

SPfis.1 · 2022-08-10

I am working on a custom board equipped with an STM32H753 and a SD-Card connected via SDMMC 4bit wide Bus. FreeRTOS is used. HAL is generated using CubeMX and the package "STM32Cube FW_H7 V1.9.1".CubeMX generates the file sd_diskio.c and in it (line ...

SPfis.1 · 2021-06-24

For a STM32L433CB I generated the Custom HID code using CubeMX version 6.2.1 and the Cube FW_L4 V1.17.0The CUSTOM_HID_FS_BINTERVAL is set to 5ms and I placed a Custom HID Descriptor. Also I adjusted USBD_CUSTOMHID_OUTREPORT_BUF_SIZE and USBD_CUSTOM...

SPfis.1 · 2022-08-31

IMO the important part is that the buffer is aligned to 32 byte and the length is a multiple of 32. That way it is insured that at clean and invalidate operation no "leftovers" are manipulated. As the FATFS read buffer is only aligned by good luck, a...

SPfis.1 · 2022-08-29

Thank you for your response. You are right. the aligned buffer I used only for f_read and f_write. My aligned buffer is not used in f_open. Is there a proper way to align the buffer inside FATFS?

SPfis.1 · 2022-08-29

Thank you for clarification. I read your article. Thank you for taking the time. I will have a look to the version of the F7 series thanks.EDIT:I guess you meant this file of the F7 Series:https://github.com/STMicroelectronics/STM32CubeF7/blob/master...

SPfis.1 · 2022-08-29

Hi @Amel NASRI ,If this ticket is not yet closed, maybe you could also add a fix I documented in the ticket: "FATFS f_open fails when data cache is enabled" ( https://community.st.com/s/question/0D53W00001lpxbASAQ/fatfs-fopen-fails-when-data-cache-i...

SPfis.1 · 2021-06-25

done. see above.

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FATFS f_open fails when data cache is enabled

Read From SD Card gets stuck in a While-Loop (Bug?)

What is the issue with the USB Custom HID Low Level Driver?

Re: FATFS f_open fails when data cache is enabled

Re: FATFS f_open fails when data cache is enabled

Re: FATFS f_open fails when data cache is enabled

Re: Read From SD Card gets stuck in a While-Loop (Bug?)

Re: What is the issue with the USB Custom HID Low Level Driver?