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
Diff: features/TESTS/examples/example1/example1.cpp
- Revision:
- 0:b22a1df967cb
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/features/TESTS/examples/example1/example1.cpp Thu Mar 23 08:25:54 2017 +0000 @@ -0,0 +1,80 @@ +#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) {} +} +