Migration to FW v1.5.1 for STM32L4

dhaval · ‎2016-06-22

Posted on June 22, 2016 at 09:28

Hi,

I got to know that new FW package has been released recently for STM32L4 MCUs. So I am migrating our current Firmware based on FW v1.3.0 to the same.

For that, I copied files from ''<FW Install Dir>\CMSIS'', ''<FW Install Dir>\STM32L4xx_HAL_Driver'' and ''<FW Install Dir>\Middlewares\Third_Party'' to respective directories in our custom firmware. After this change, I got few compilation errors related to UART, Watchdog etc. I resolved those errors and able to compile the the firmware successfully. But with this SD card is not working.

SD card write fails continuously. The function call f_open()/f_write() fails with error code 0x01(FR_DISK_ERR). When I debug it further I found, the SD card fails with ''SD_DATA_CRC_FAIL'' error.

The same code is working fine with FW v1.3.0.

Please help me to resolve this.

Thanks,

Dhaval

#hal #microsd #fatfs #stm32l4

slimen · ‎2016-06-22

Posted on June 22, 2016 at 10:35

Hi dhavalv,

I think it's related toCMSIS bug found in many STM32L4 header files which define wrong values of SDMMC registers:

#define SDMMC_DCTRL_DBLOCKSIZE_2 (0x3U << SDMMC_DCTRL_DBLOCKSIZE_Pos) /*!< 0x00000040 */

#define SDMMC_DCTRL_DBLOCKSIZE_3 (0x4U << SDMMC_DCTRL_DBLOCKSIZE_Pos) /*!< 0x00000080 */

These lines should be defined as follow:

#define SDMMC_DCTRL_DBLOCKSIZE_2 (0x4U << SDMMC_DCTRL_DBLOCKSIZE_Pos) /*!< 0x00000040 */

#define SDMMC_DCTRL_DBLOCKSIZE_3 (0x8U << SDMMC_DCTRL_DBLOCKSIZE_Pos) /*!< 0x00000080 */

You can refer to these threads with same issue: [DEAD LINK /public/STe2ecommunities/mcu/Lists/STM32Java/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/STM32Java/%5bBUG%20Report%20STM32Cube_FW_L4_V1.5.0%5d%20Wrong%20Values%20of%20SDMMC%20registers&FolderCTID=0x01200200770978C69A1141439FE559EB459D758000F9A0E3A95BA69146A17C2E80209ADC21&currentviews=2]thread1,

https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Java/Flat.aspx?RootFolder=https://my.st.com/public/STe2ecommunities/mcu/Lists/STM32Java/Bug%20report%20in%20CMSIS%20STM32L486xx.h&currentviews=7

Regards

dhaval · ‎2016-06-22

Posted on June 22, 2016 at 11:36

Hi,

Thanks for your quick reply. It works, issue is resolved.

Regards,

Dhaval