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5 years, 9 months ago.
I cannot write to sd card means can't open file for writing
when i flash bin file to my MKL25Z128VLK4 following error show:
Hello World! ++ MbedOS Error Info ++ Error Status: 0x80040103 Error Code: 256 Error Module: 255 Error Message: FATAL Run -time error Error Location: 0x74D3 Error Value: 0x00005566 Current Thread: Id: 0x200024A8 EntryFn: 0x0000FB0D StackSize: 0x00001000 StackMem: 0x200014A8 SP: 0x2002FFD8 -- MbedOS Error Info -- Could not open file for write
i am using eclipse oxygen ide and writing to sd card with mbed-os
here i am inseted my code below:
#include "mbed.h" #include "SDBlockDevice.h" #include "FATFileSystem.h" #include "stdio.h" #define SD_MOUNT_PATH "sd" SDBlockDevice sd(PTD6, PTD7, PTD5, PTE31); FATFileSystem fs(SD_MOUNT_PATH); int main() { sd.init(); fs.mount(&sd); printf("Hello World!\n"); FILE *fp = fopen("/sd/mydir/myfile.txt", "a"); if (fp == NULL) { error("Could not open file for write\n"); } fprintf(fp, "SD card is running successfully,Thank you"); fclose(fp); printf("Goodbye World!\n"); fs.unmount(); sd.deinit(); }
1 Answer
5 years, 8 months ago.
Hello Dipak,
Can you try running this program here?:
https://github.com/ARMmbed/mbed-os-example-sd-driver
If you look at the mbed_lib.json file, it has the pins for SDBlockDevice(PinName mosi, PinName miso, PinName sclk, PinName cs) configured for the FRDM-KL25Z as:
"KL25Z": { "SPI_MOSI": "PTD2", "SPI_MISO": "PTD3", "SPI_CLK": "PTD1", "SPI_CS": "PTD0" },
If you want, you can try changing those pin configurations within your own program to see if that will also run. Hope this helps!
-Karen, team Mbed
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