Colony

/* ftdi test

 * Simple program to test the ftdi drivers with the dongle

 */

#include <stdio.h>

#include <unistd.h>

#include <usb.h>

#include <ftdi.h>

int main(int argc, char **argv)

{

  struct ftdi_context ftdic;

  int f,i;

  ftdi_init(&ftdic);

  f = ftdi_usb_open(&ftdic, 0x0403, 0x6001);

  if(f < 0 && f != -5) {

    fprintf(stderr, "unable to open ftdi device: %d\n",f);

    exit(-1);

  }

  printf("ftdi open succeeded: %d\n",f);

  printf("enabling bitbang mode\n");

  ftdi_enable_bitbang(&ftdic, 0xFF);

  char buf[1];

  sleep(3);

  buf[0] = 0x0;

  printf("turning everything on\n");

  f = ftdi_write_data(&ftdic, buf, 1);

  if(f < 0) {

    fprintf(stderr,"write failed for 0x%x, error %d\n",buf[0],f);

  }

  sleep(3);

  buf[0] = 0xFF;

  printf("turning everything off\n");

  f = ftdi_write_data(&ftdic, buf, 1);

  if(f < 0) {

    fprintf(stderr,"write failed for 0x%x, error %d\n",buf[0],f);

  }

  sleep(3);

  for(i = 0; i < 32; i++) {

    buf[0] =  0 | (0xFF ^ 1 << (i % 8));

    if( i > 0 && (i % 8) == 0) {

      printf("\n");

    }

    printf("%02hhx ",buf[0]);

    fflush(stdout);

    f = ftdi_write_data(&ftdic, buf, 1);

    if(f < 0) {

      fprintf(stderr,"write failed for 0x%x, error %d\n",buf[0],f);

    }

    sleep(1);

  }

  printf("\n");

  printf("disabling bitbang mode\n");

  ftdi_disable_bitbang(&ftdic);

  ftdi_usb_close(&ftdic);

  ftdi_deinit(&ftdic);

}