110 lines
3.1 KiB
C
110 lines
3.1 KiB
C
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/* bitbang_ft2232.c
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Output some flickering in bitbang mode to the FT2232
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Thanks to max@koeln.ccc.de for fixing and extending
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the example for the second channel.
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This program is distributed under the GPL, version 2
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#ifdef __WIN32__
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#define sleep(x) Sleep(x)
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#endif
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#include <ftdi.h>
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int main(int argc, char **argv)
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{
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struct ftdi_context *ftdi, *ftdi2;
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unsigned char buf[1];
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int f,i;
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// Init 1. channel
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if ((ftdi = ftdi_new()) == 0)
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{
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fprintf(stderr, "ftdi_new failed\n");
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return EXIT_FAILURE;
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}
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ftdi_set_interface(ftdi, INTERFACE_A);
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f = ftdi_usb_open(ftdi, 0x0403, 0x6001);
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if (f < 0 && f != -5)
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{
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fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(ftdi));
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ftdi_deinit(ftdi);
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exit(-1);
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}
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printf("ftdi open succeeded(channel 1): %d\n",f);
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printf("enabling bitbang mode(channel 1)\n");
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ftdi_set_bitmode(ftdi, 0xFF, BITMODE_BITBANG);
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// Init 2. channel
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if ((ftdi2 = ftdi_new()) == 0)
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{
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fprintf(stderr, "ftdi_new failed\n");
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return EXIT_FAILURE;
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}
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ftdi_set_interface(ftdi2, INTERFACE_B);
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f = ftdi_usb_open(ftdi2, 0x0403, 0x6001);
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if (f < 0 && f != -5)
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{
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fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(ftdi2));
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ftdi_deinit(ftdi2);
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exit(-1);
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}
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printf("ftdi open succeeded(channel 2): %d\n",f);
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printf("enabling bitbang mode (channel 2)\n");
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ftdi_set_bitmode(ftdi2, 0xFF, BITMODE_BITBANG);
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// Write data
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printf("startloop\n");
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for (i = 0; i < 23; i++)
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{
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buf[0] = 0x1;
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printf("porta: %02i: 0x%02x \n",i,buf[0]);
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f = ftdi_write_data(ftdi, buf, 1);
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if (f < 0)
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fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi));
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sleep(1);
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buf[0] = 0x2;
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printf("porta: %02i: 0x%02x \n",i,buf[0]);
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f = ftdi_write_data(ftdi, buf, 1);
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if (f < 0)
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fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi));
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sleep(1);
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buf[0] = 0x1;
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printf("portb: %02i: 0x%02x \n",i,buf[0]);
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f = ftdi_write_data(ftdi2, buf, 1);
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if (f < 0)
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fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi2));
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sleep(1);
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buf[0] = 0x2;
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printf("portb: %02i: 0x%02x \n",i,buf[0]);
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f = ftdi_write_data(ftdi2, buf, 1);
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if (f < 0)
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fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi2));
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sleep(1);
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}
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printf("\n");
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printf("disabling bitbang mode(channel 1)\n");
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ftdi_disable_bitbang(ftdi);
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ftdi_usb_close(ftdi);
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ftdi_deinit(ftdi);
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printf("disabling bitbang mode(channel 2)\n");
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ftdi_disable_bitbang(ftdi2);
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ftdi_usb_close(ftdi2);
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ftdi_free(ftdi2);
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return 0;
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}
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