stm32l4r5zi SDMMC如何实现虚拟文件系统

发布于 2022-02-09 17:57:23 浏览：996 订阅该版

老鸟kkk 2022-02-12

这家伙很懒，什么也没写！

遇到同样的问题，stm32h750vb用的sdmmc2接sd卡，硬件和sd卡都没问题(使用freertos和fatfs以及AzureRTOS的filex验证过)，配好时钟以及sd卡管脚初始化并在kconfig添加配置后，编译出现一堆问题，修改drv_sdio.h后编译问题集中在sdio_config.h的SDIO_BUS_CONFIG上，后来使用官方的(https://gitee.com/RT-Thread-Studio-Mirror/sdk-bsp-stm32h750-realthread-artpi/blob/master/libraries/drivers/drv_sdio.c)drv_sdio.c和drv_sdio.h替换后，编译通过但烧写进去后出现跟lz一样的现象：

\ | /
- RT -     Thread Operating System
 / | \     4.1.0 build Feb 12 2022 21:58:02
 2006 - 2021 Copyright by rt-thread team
[I/SFUD] Find a Winbond flash chip. Size is 33554432 bytes.
[I/SFUD] W25Q256 flash device is initialize success.
[I/SFUD] Probe SPI flash W25Q256 by SPI device spi20 success.
[D/FAL] (fal_flash_init:63) Flash device |                  W25Q256 | addr: 0x00000000 | len: 0x02000000 | blk_size: 0x00001000 |initialized finish.
[I/FAL] ==================== FAL partition table ====================
[I/FAL] | name      | flash_dev |   offset   |    length  |
[I/FAL] -------------------------------------------------------------
[I/FAL] | spiflash0 | W25Q256   | 0x00000000 | 0x02000000 |
[I/FAL] =============================================================
[I/FAL] RT-Thread Flash Abstraction Layer (V0.5.0) initialize success.
[I/FAL] The FAL MTD NOR device (spiflash0) created successfully
[I/app.filesystem] spi flash mount to '/spiflash'
msh />[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
list_de
list_device
msh />list_device
device           type         ref count
-------- -------------------- ----------
spiflash MTD Device           1       
W25Q256  Block Device         0       
spi20    SPI Device           0       
spi2     SPI Bus              0       
uart1    Character Device     2       
pin      Miscellaneous Device 0       
msh />[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout
[E/drv.sdio] wait cmd completed timeout