Writing to SD card problem (solved)

Comments

• xanadu Posts: 3,347

  2017-07-06 16:04

  the code
  

  /*
    SD Datalogger.side
  
    Application prompts you to type numbers into SimpleIDE Terminal, and
    records to SD.  Plays back all numbers after you type q and press Enter.
    
    http://learn.parallax.com/propeller-c-simple-devices/sd-card-data
  */
  
  #include "simpletools.h"                      // Include simpletools header    .
  
  int DO = 22, CLK = 23, DI = 24, CS = 25;      // SD card pins on Propeller BOE
  
  int main(void)                                // main function
  {
    print("Enter several values.\n\n");         // User instructions
    print("To see logged values, press\n");
    print("Enter a second time.\n\n");
  
    sd_mount(DO, CLK, DI, CS);                  // Mount SD card
  
    FILE* fp = fopen("test.txt", "w");          // Open a file for writing
  
    int n, status;                              // Number & status variables
    while(1)                                    // Endless loop
    {
      print("> ");                              // User prompt
      status = scan("%d", &n);                  // Get number & status
      if(!status) break;                        // Status 0? Break out of loop
      fwrite(&n, 4, 1, fp);                     // Write number to SD card
    } 
    fclose(fp);                                 // Close the file
    
    print("\nYou entered:\n");                  // List heading
  
    fp = fopen("test.txt", "r");                // Open a file for writing
    while(1)
    {
      status = fread(&n, 4, 1, fp);             // Read from SD & get status
      if(!status) break;                        // If no more, break loop
      print("n = %d\n", n);                     // Display value
    } 
    fclose(fp);                                 // Close the file
  }   
  
• xanadu Posts: 3,347

  2017-07-06 16:46

  Never mind, I have it working in SPIN and that is what I should be using anyway.