funinit

#include <rtl.h>

int funinit (
    const char *drive);     /* drive to uninitialize */

The funinit function uninitializes the Flash File System. It can be used if during the application run time the drive volume to be disabled for whatever reason (for example lowering power consumption). After this function is called only the finit function should be called for reinitialization of the drive.

The argument drive specifies the drive to be uninitialized. The following options are allowed for the drive argument:

The funinit function is in the RL-FlashFS library. The prototype is defined in rtl.h.

• 0 - on success.
• non-zero value - on failure.

finit

#include <rtl.h>

void main (void) {
  FILE *f;

  /* Initialize the M: drive. */
  if (finit ("M:") == 0) {
    /* Update a log file on SD card. */
    f = fopen ("M:\\Logs\\Test_file.log","a");
    if (f == NULL) {
      printf ("Failed to create a file!\n");
    }
    else {
      // write data to file
      fclose (f);
    }
    /* The drive is no more needed. */
    funinit ("M:");
  }
   ..
}