29. STM32CubeIDE SD CARD. SPI with STM32F103C8T6 

I tried this on F401CCU6,I had to change f_lseek(&fil, fil.fsize) => f_lseek(&fil, fil.fptr).At first,no file was generated.Then I saw this commet,I formatted the card to 4096 and connected 5 volts to vcc.Finally,It worked.👍👍👍👍

Sir, I follow exactly what u did but when I use Usb cable which give 5V to sd MH-SD card module with sd card adapter, however I cant find the text file in the micro sd card although my system file of sd card was FAT32 and allocation size was 4096bytes. I use STM32F103C8T6, windows 10, and ST link v-2. Please help me, I am really losing patient on this

You are welcome!

You are most welcome

Actually, the library creator "Lee Ji-hoon" used with spi2. It will work The link is below github.com/eziya/STM32_SPI_SDCARD/tree/master/STM32F4_HAL_SPI_SDCARD I suggest if you want SPI2 with STM32F103C8T6, try with SPI1 first. If everything works well, change to SPI2 You need to modify fifth last line in fatfs_sd.h file extern SPI_HandleTypeDef hspi1; Thanks

f_lseek(&fil, fil.fsize); is in a built-in library of CubeIDE. When Click Middleware → Click FATFS, it will kick in

Middlewares/Third_party/FatFs/src/ff.c

/*-----------------------------------------------------------------------*/ /* Seek File R/W Pointer */ /*-----------------------------------------------------------------------*/ FRESULT f_lseek ( FIL* fp, /* Pointer to the file object */ DWORD ofs /* File pointer from top of file */ ) { FRESULT res; DWORD clst, bcs, nsect, ifptr; #if _USE_FASTSEEK DWORD cl, pcl, ncl, tcl, dsc, tlen, ulen, *tbl; #endif res = validate(fp); /* Check validity of the object */ if (res != FR_OK) LEAVE_FF(fp->fs, res); if (fp->err) /* Check error */ LEAVE_FF(fp->fs, (FRESULT)fp->err); #if _USE_FASTSEEK if (fp->cltbl) { /* Fast seek */ if (ofs == CREATE_LINKMAP) { /* Create CLMT */ tbl = fp->cltbl; tlen = *tbl++; ulen = 2; /* Given table size and required table size */ cl = fp->sclust; /* Top of the chain */ if (cl) { do { /* Get a fragment */ tcl = cl; ncl = 0; ulen += 2; /* Top, length and used items */ do { pcl = cl; ncl++; cl = get_fat(fp->fs, cl); if (cl fs, FR_INT_ERR); if (cl == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); } while (cl == pcl + 1); if (ulen fs->n_fatent); /* Repeat until end of chain */ } *fp->cltbl = ulen; /* Number of items used */ if (ulen fp->fsize) /* Clip offset at the file size */ ofs = fp->fsize; fp->fptr = ofs; /* Set file pointer */ if (ofs) { fp->clust = clmt_clust(fp, ofs - 1); dsc = clust2sect(fp->fs, fp->clust); if (!dsc) ABORT(fp->fs, FR_INT_ERR); dsc += (ofs - 1) / SS(fp->fs) & (fp->fs->csize - 1); if (fp->fptr % SS(fp->fs) && dsc != fp->dsect) { /* Refill sector cache if needed */ #if !_FS_TINY #if !_FS_READONLY if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */ if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1) != RES_OK) ABORT(fp->fs, FR_DISK_ERR); fp->flag &= ~FA__DIRTY; } #endif if (disk_read(fp->fs->drv, fp->buf.d8, dsc, 1) != RES_OK) /* Load current sector */ ABORT(fp->fs, FR_DISK_ERR); #endif fp->dsect = dsc; } } } } else #endif /* Normal Seek */ { if (ofs > fp->fsize /* In read-only mode, clip offset with the file size */ #if !_FS_READONLY && !(fp->flag & FA_WRITE) #endif ) ofs = fp->fsize; ifptr = fp->fptr; fp->fptr = nsect = 0; if (ofs) { bcs = (DWORD)fp->fs->csize * SS(fp->fs); /* Cluster size (byte) */ if (ifptr > 0 && (ofs - 1) / bcs >= (ifptr - 1) / bcs) { /* When seek to same or following cluster, */ fp->fptr = (ifptr - 1) & ~(bcs - 1); /* start from the current cluster */ ofs -= fp->fptr; clst = fp->clust; } else { /* When seek to back cluster, */ clst = fp->sclust; /* start from the first cluster */ #if !_FS_READONLY if (clst == 0) { /* If no cluster chain, create a new chain */ clst = create_chain(fp->fs, 0); if (clst == 1) ABORT(fp->fs, FR_INT_ERR); if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); fp->sclust = clst; } #endif fp->clust = clst; } if (clst != 0) { while (ofs > bcs) { /* Cluster following loop */ #if !_FS_READONLY if (fp->flag & FA_WRITE) { /* Check if in write mode or not */ clst = create_chain(fp->fs, clst); /* Force stretch if in write mode */ if (clst == 0) { /* When disk gets full, clip file size */ ofs = bcs; break; } } else #endif clst = get_fat(fp->fs, clst); /* Follow cluster chain if not in write mode */ if (clst == 0xFFFFFFFF) ABORT(fp->fs, FR_DISK_ERR); if (clst = fp->fs->n_fatent) ABORT(fp->fs, FR_INT_ERR); fp->clust = clst; fp->fptr += bcs; ofs -= bcs; } fp->fptr += ofs; if (ofs % SS(fp->fs)) { nsect = clust2sect(fp->fs, clst); /* Current sector */ if (!nsect) ABORT(fp->fs, FR_INT_ERR); nsect += ofs / SS(fp->fs); } } } if (fp->fptr % SS(fp->fs) && nsect != fp->dsect) { /* Fill sector cache if needed */ #if !_FS_TINY #if !_FS_READONLY if (fp->flag & FA__DIRTY) { /* Write-back dirty sector cache */ if (disk_write(fp->fs->drv, fp->buf.d8, fp->dsect, 1) != RES_OK) ABORT(fp->fs, FR_DISK_ERR); fp->flag &= ~FA__DIRTY; } #endif if (disk_read(fp->fs->drv, fp->buf.d8, nsect, 1) != RES_OK) /* Fill sector cache */ ABORT(fp->fs, FR_DISK_ERR); #endif fp->dsect = nsect; } #if !_FS_READONLY if (fp->fptr > fp->fsize) { /* Set file change flag if the file size is extended */ fp->fsize = fp->fptr; fp->flag |= FA__WRITTEN; } #endif } LEAVE_FF(fp->fs, res); }

Thanks bro, If I have other problems, I'll let you know, hoping for some help, haha

Hey bro I saw a new change for the function f_lseek(&fil,fil.size()); if someone has a problem to intance the method fil.size try to use f_size(&fil) so the function f_lseek would be f_lseek(&fil,f_size(&fil));

I am not sure whether spi sd card is capable of writing 500 times in one second. You can put the data in a array buffer and then write it to sd card every one second. If there any data loss, you can reduce the data logging rate.

Please check everything Wishing you al the best

Hi, 1. Check the card works on a PC and it’s file system is FAT32 2. Make sure SD card reader VCC gets 5V (Supply 5V to Micro-controller via USB before connecting st-link) 3. Try with a different SD card if you have another. 4. Check the wiring connectins

@@NizarMohideen Thank you sir, it worked!

@@thanhnguyentien5317 What was your problem?

@@thanhnguyentien5317 What was the problem, can you please help me

The library creator named eziya in github used it for STM32F4. github.com/eziya/STM32_SPI_SDCARD/tree/master/STM32F4_HAL_SPI_SDCARD I modified to work with STM32F1. You can use the original codes

Hi Thành Tiến, You can use separate files for each variables. For example Helpme = " nguyentienthanh"; you can use Helpme.txt and then save the variable without f_lseek(&fil, fil.fsize); It will overwrite in the beginning of the file. Another option is to use eeprom as I have shown in video-no-66 and video-no-67 of my RU-vid channel. Thanks

I am not familiar with GRBL I have some types of lcd or tft with stm32. links ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-9F2gTb3n_p0.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-l-JVnlJIPao.html ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-8hypVJ2U7OE.html

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-GDLeBBvOTmo.html

Just one more addition. For me, I was getting error for fil.fsize so I used f_size(&fil) for f_sleek(&fil, f_size(&fil));

Thanks for the infomation

use f_lseek(&fil, f_size(&fil)); instead. Thanks

It seems like you are using STM32F103C6T6. You need to use at least STM32F103C8T6.

@@NizarMohideen I repaired it, thanks a lot for your support

Thanks

@@tienleminh8129 how did you fix it ?

@@jadsieltrrs6299 "It seems like you are using STM32F103C6T6. You need to use at least STM32F103C8T6"

Yes. This module is for Micro SD Card

@@NizarMohideen Thank you, ı have another question. ı did everything but ı couldn't get data in my sd card. Where is my data?

When you format SD card in windows10 with FAT32, select 4096bytes for allocation unit size.

@@NizarMohideen I will try it. Thank you

@@NizarMohideen No sir, it wasn't run..:(

Hi, 1. Check the card works on a PC and it’s file system is FAT32 2. Make sure SD card reader VCC gets 5V (Supply 5V to Micro-controller via USB before connecting st-link) 3. Try with a different SD card if you have another.

@@NizarMohideen I have tried everything earlier as well. It does not work. I used a 16 GB SD card of San disk formatted as FAT32. Gave external 5V supply. Card works perfectly fine when connected to arduino uno.

If you are using STM32F103C8T6,It should work. To check the solder joints in pins PA4,PA5 PA6 PA7 ,5V AND G, you can connect LED's on it and run a simple blink program. If solder joints are good, make sure PA7 - MOSI / PA6- MISO Make sure the library file name spellings fatfs_sd.h / fatfs_sd.c Make sure you followed all the CUBEIDE settings given below Click connectivity → Click SPI1 For Mode select Full Duplex Master Set PA4 to GPIO_Output Click Middleware → Click FATFS Tick User-defined Configuration → Set Defines For USE LFN (Use Long Filename) select Enabled with static working buffer on the BSS For Max SS (Maximum Sector Size) select 4096 After all if it still not works, you can send me the main.c - user_diskio.c - stm32f1xx_it.c (3 files) to my email nizarmohideen@hotmail.com, I can find any errors on it for you Good luck

me too, of cause using the EXACT same STM32F103C8T6 and card slot and etc. And I have checked hundreds times of pins and the cubide settings, but it alwals give me a FR_NOT_READY. When I debug into the code, it seems initialize failed, because SD_SendCmd(CMD0, 0) returned 255 instead of 1

Oh by the way. I have 4 different micro sd cards, they all returns FR_NOT_READY. Is it possible that the firmware package version has some problem? I'm using FW_F1 V1.8.0, and I don't know why stm32cubeide doesn't let choose version earlier than 1.8.0. of cause i have downloaded some old versions in package manager.