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/* bitbang_ft2232.c
Output some flickering in bitbang mode to the FT2232
Thanks to max@koeln.ccc.de for fixing and extending
the example for the second channel.
This program is distributed under the GPL, version 2
*/
#include <stdio.h>
#include <unistd.h>
#ifdef __WIN32__
#define sleep(x) _sleep(x)
#endif
#include <ftdi.h>
int main(int argc, char **argv)
{
struct ftdi_context ftdic, ftdic2;
char buf[1];
int f,i;
// Init 1. channel
if (ftdi_init(&ftdic) < 0)
{
fprintf(stderr, "ftdi_init failed\n");
return EXIT_FAILURE;
}
ftdi_set_interface(&ftdic, INTERFACE_A);
f = ftdi_usb_open(&ftdic, 0x0403, 0x6001);
if (f < 0 && f != -5)
{
fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(&ftdic));
exit(-1);
}
printf("ftdi open succeeded(channel 1): %d\n",f);
printf("enabling bitbang mode(channel 1)\n");
ftdi_set_bitmode(&ftdic, 0xFF, BITMODE_BITBANG);
// Init 2. channel
if (ftdi_init(&ftdic2) < 0)
{
fprintf(stderr, "ftdi_init failed\n");
return EXIT_FAILURE;
}
ftdi_set_interface(&ftdic2, INTERFACE_B);
f = ftdi_usb_open(&ftdic2, 0x0403, 0x6001);
if (f < 0 && f != -5)
{
fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(&ftdic2));
exit(-1);
}
printf("ftdi open succeeded(channel 2): %d\n",f);
printf("enabling bitbang mode (channel 2)\n");
ftdi_set_bitmode(&ftdic2, 0xFF, BITMODE_BITBANG);
// Write data
printf("startloop\n");
for (i = 0; i < 23; i++)
{
buf[0] = 0x1;
printf("porta: %02i: 0x%02x \n",i,buf[0]);
f = ftdi_write_data(&ftdic, buf, 1);
if (f < 0)
fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(&ftdic));
sleep(1);
buf[0] = 0x2;
printf("porta: %02i: 0x%02x \n",i,buf[0]);
f = ftdi_write_data(&ftdic, buf, 1);
if (f < 0)
fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(&ftdic));
sleep(1);
buf[0] = 0x1;
printf("portb: %02i: 0x%02x \n",i,buf[0]);
f = ftdi_write_data(&ftdic2, buf, 1);
if (f < 0)
fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(&ftdic2));
sleep(1);
buf[0] = 0x2;
printf("portb: %02i: 0x%02x \n",i,buf[0]);
f = ftdi_write_data(&ftdic2, buf, 1);
if (f < 0)
fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(&ftdic2));
sleep(1);
}
printf("\n");
printf("disabling bitbang mode(channel 1)\n");
ftdi_disable_bitbang(&ftdic);
ftdi_usb_close(&ftdic);
ftdi_deinit(&ftdic);
printf("disabling bitbang mode(channel 2)\n");
ftdi_disable_bitbang(&ftdic2);
ftdi_usb_close(&ftdic2);
ftdi_deinit(&ftdic2);
}
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