ECE 4180 Lab 2 Part 13
Dependencies: SDFileSystem mbed
Fork of SDFileSystem_HelloWorld by
main.cpp
- Committer:
- abraha2d
- Date:
- 2018-10-09
- Revision:
- 2:ad4601e7074a
- Parent:
- 0:bdbd3d6fc5d5
File content as of revision 2:ad4601e7074a:
#include "mbed.h" #include "SDFileSystem.h" SDFileSystem sd(p11, p12, p13, p14, "sd"); // the pinout on the mbed Cool Components workshop board FILE * pFile; long lSize; char * buffer; size_t result; int main() { printf("Hello World!\n"); mkdir("/sd/mydir", 0777); FILE *fp = fopen("/sd/mydir/sdtest.txt", "w"); if(fp == NULL) { error("Could not open file for write\n"); } fprintf(fp, "Hello SD file world"); fclose(fp); pFile = fopen ( "/sd/mydir/sdtest.txt" , "r" ); if (pFile==NULL) { error ("File error"); } // obtain file size: fseek (pFile , 0 , SEEK_END); lSize = ftell (pFile); rewind (pFile); // allocate memory to contain the whole file: buffer = (char*) malloc (sizeof(char)*lSize); if (buffer == NULL) { error ("Memory error"); } // copy the file into the buffer: result = fread (buffer,1,lSize,pFile); if (result != lSize) { error ("Reading error"); exit (3); } /* the whole file is now loaded in the memory buffer. */ printf(buffer); // terminate fclose (pFile); free (buffer); printf("Goodbye World!\n"); }