High-speed access version sd-driver.
Dependents: SDBlockDevice_GR_PEACH SDBlockDevice_GR_PEACH HagridOS5
This library has modified SDBlockDevice.h based on revision "14: c7dba87" of sd-driver.
https://github.com/ARMmbed/sd-driver
features/TESTS/examples/example1/example1.cpp
- Committer:
- dkato
- Date:
- 2017-03-23
- Revision:
- 0:b22a1df967cb
File content as of revision 0:b22a1df967cb:
#include "mbed.h" #include "FATFileSystem.h" #include "SDBlockDevice.h" #include <stdio.h> #include <errno.h> /* mbed_retarget.h is included after errno.h so symbols are mapped to * consistent values for all toolchains */ #include "platform/mbed_retarget.h" SDBlockDevice sd(MBED_CONF_APP_SPI_MOSI, MBED_CONF_APP_SPI_MISO, MBED_CONF_APP_SPI_CLK, MBED_CONF_APP_SPI_CS); FATFileSystem fs("sd", &sd); void return_error(int ret_val){ if (ret_val) printf("Failure. %d\n", ret_val); else printf("done.\n"); } void errno_error(void* ret_val){ if (ret_val == NULL) printf(" Failure. %d \n", errno); else printf(" done.\n"); } int main() { int error = 0; printf("Welcome to the filesystem example.\n"); printf("Opening a new file, numbers.txt."); FILE* fd = fopen("/sd/numbers.txt", "w+"); errno_error(fd); for (int i = 0; i < 20; i++){ printf("Writing decimal numbers to a file (%d/20)\r", i); fprintf(fd, "%d\n", i); } printf("Writing decimal numbers to a file (20/20) done.\n"); printf("Closing file."); fclose(fd); printf(" done.\n"); printf("Re-opening file read-only."); fd = fopen("/sd/numbers.txt", "r"); errno_error(fd); printf("Dumping file to screen.\n"); char buff[16] = {0}; while (!feof(fd)){ int size = fread(&buff[0], 1, 15, fd); fwrite(&buff[0], 1, size, stdout); } printf("EOF.\n"); printf("Closing file."); fclose(fd); printf(" done.\n"); printf("Opening root directory."); DIR* dir = opendir("/sd/"); errno_error(fd); struct dirent* de; printf("Printing all filenames:\n"); while((de = readdir(dir)) != NULL){ printf(" %s\n", &(de->d_name)[0]); } printf("Closeing root directory. "); error = closedir(dir); return_error(error); printf("Filesystem Demo complete.\n"); while (true) {} }