Writing to SD card problem (solved)

xanadu

I'm running the "SD Datalogger.c" that comes with Simple IDE, unmodified. The pic attached shows the expected input, and reads it back correctly.

The problem I have is using my PC/notepad to read the contents of test.txt file on the SD card -

         (   2   

I tried a couple of cards, formatting them fat32. Is there something I need to change to show dec values?

xanadu

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

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