SD driver for STM3210C eval using FatFs

[lemeclyonnais]

Posted on January 17, 2013 at 10:23

Hi guys,

I'm working for the first time on a STM3210C eval. I have to store files on the SD card included in the STM card. So I added FatFs to my project. As FatFs is platform independant, I have to find a compatible SD driver which can provide several functions : disk_ioctl(), disk_read(), etc... I've searched on the Internet and tried to add many drivers, without success. Has someone a SD card driver for STM3210C eval which is compatible with FatFs, and a short ''how to do'' would be great :) thanks, Nicolas #stm3210c-eval-fatfs-sd-driver

[amin23]

Posted on January 18, 2013 at 10:25

The attached file may help you. also on the following an example based on STM32F2 and STM32F4.

STM32F2 and STM32F4 demonstration builder platform: http://www.st.com/internet/mcu/product/252jsp ________________ Attachments : diskio.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I0tK&d=%2Fa%2F0X0000000bgu%2FhRMSD1bC2TDMV6ATzYZyDF3utsyZo85baXvpfSyDPSw&asPdf=false

[markmclean9]

Posted on January 18, 2013 at 16:43

And here's another example, this was from a project which ran on the STM3210C eval board.

Cheers, Mark ________________ Attachments : disk_io.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HtW3&d=%2Fa%2F0X0000000aR8%2Fhi0lzhTc.XQ.fM7U3IVGXWWdSTPy8VpIkDrbhvOULjw&asPdf=falsediskio.h : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HtII&d=%2Fa%2F0X0000000aLB%2FtXeVc8krFLmakC39JJZFCEiyj8amUvXhzFFXQSq3XQI&asPdf=falsesdcard.c : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HtW8&d=%2Fa%2F0X0000000aR9%2F4cFtJ5ITDcA2m2Nff0A8vzhlXJidtE59t7Abbix6UBo&asPdf=falsesdcard.h : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HtWD&d=%2Fa%2F0X0000000aRA%2FdcR0xa.nrzTRzVz9E.lwZnpR_M1KxGgGJd5CoFZeJzU&asPdf=false

[lemeclyonnais]

Posted on January 21, 2013 at 11:44

Thank you for your answers.

@mclean.mark : ''global.h'' in the c files is not recognized by my compiler. I managed to compilate by replacing ''global.h by : #include ''stm32f10x_sdio.h'' #include ''stm32f10x_dma.h'' #include ''stm32f10x_rcc.h'' #define NULL    ((void *)0) I modified SDIO_configuration in sdcard.c : static void SDIO_Configuration(void) {     GPIO_InitTypeDef  GPIO_InitStructureA;     GPIO_InitTypeDef  GPIO_InitStructureC;   RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC, ENABLE);   GPIO_InitStructureC.GPIO_Pin =  GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;   GPIO_InitStructureC.GPIO_Speed = GPIO_Speed_50MHz;   GPIO_InitStructureC.GPIO_Mode = GPIO_Mode_AF_PP;   GPIO_Init(GPIOC, &GPIO_InitStructureC);   /* Configure PD.02 CMD line */   GPIO_InitStructureA.GPIO_Pin = GPIO_Pin_4;     GPIO_InitStructureA.GPIO_Speed = GPIO_Speed_50MHz;   GPIO_InitStructureA.GPIO_Mode = GPIO_Mode_Out_PP;   GPIO_Init(GPIOA, &GPIO_InitStructureA); } But it still doesn't work when I do in the main :     FIL fil_obj;     FATFS fs[1];     FRESULT FRes;     disk_initialize(0);     f_mount(0, &fs[0]);     f_open(&fil_obj, ''0:whatever.txt'', FA_OPEN_ALWAYS | FA_READ);     f_close(&fil_obj);     f_mount(0, NULL); Note : I use the firmware 3.3.0, and the processor is a STM3210f107VC Some ideas ?

[lee_trueman]

Posted on January 21, 2013 at 11:51

your SDIO init is not correct it should be more like this

void SD_LowLevel_Init(void){  GPIO_InitTypeDef  GPIO_InitStructure;  /*!< GPIOC and GPIOD Periph clock enable */  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | SD_DETECT_GPIO_CLK, ENABLE);  /*!< Configure PC.08, PC.09, PC.10, PC.11, PC.12 pin: D0, D1, D2, D3, CLK pin */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11 | GPIO_Pin_12;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;  GPIO_Init(GPIOC, &GPIO_InitStructure);  /*!< Configure PD.02 CMD line */  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;  GPIO_Init(GPIOD, &GPIO_InitStructure);  /*!< Configure SD_SPI_DETECT_PIN pin: SD Card detect pin */  GPIO_InitStructure.GPIO_Pin = SD_DETECT_PIN;//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; // Pull up on board  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;  GPIO_Init(SD_DETECT_GPIO_PORT, &GPIO_InitStructure);  /*!< Enable the SDIO AHB Clock */  RCC_AHBPeriphClockCmd(RCC_AHBPeriph_SDIO, ENABLE);  /*!< Enable the DMA2 Clock */  RCC_AHBPeriphClockCmd(SD_SDIO_DMA_CLK, ENABLE);}

[lee_trueman]

Posted on January 21, 2013 at 12:14

ignore my last post your not using SDIO interface.

[Tesla DeLorean]

Posted on January 21, 2013 at 13:48

Some ideas ?

disk_initialize() is called internally by FatFs. FatFs returns errors, examine them and don't continue to plough forward if it fails. Use a debugger and scope if you need to understand what's happening. Debug and test the SD read/write routines outside of FatFs, if they don't work standalone, they aren't going to work when integrated, and debugging is harder.