Part Number:TMS320F28377D
Hi everyone,
I am using a TMS320F28377D with a micro SD card for a long time now. My old project is able to read and write files on the SD card but after a new installation of the IDE writing fails. With a new project I even crashed some cards, they are not recognized on Windows anymore.
To figure out what is going wrong I opened the sd_card example located at C:\ti\controlSUITE\device_support\F2837xD\v210\F2837xD_examples_Cpu1. Unfortunately, the project does not write anything to the card, so I added the following code into line 801.
fresult = f_open(&g_sFileObject, "test.txt", FA_READ | FA_WRITE); fresult = f_read(&g_sFileObject, g_cTmpBuf, sizeof(g_cTmpBuf) - 1, &nStatus); fresult = f_write(&g_sFileObject, g_cTmpBuf, sizeof(g_cTmpBuf) - 1, &nStatus); fresult = f_close(&g_sFileObject);
The line 801 is the line after mounting the file system. I created a file "test.txt" with some text and stared the program. Reading was fine, even the write ended with FR_OK but f_close terminated with FR_RW_ERROR.
Can anyone give me a hint where to search for the problem and what happened to the dead SD cards? What can go wrong to destroy a card?
Thank you for the support
Kind Regards Jan