Commit | Line | Data |
---|---|---|
08cb09bf TJ |
1 | /* bitbang_ft2232.c |
2 | ||
3 | Output some flickering in bitbang mode to the FT2232 | |
4 | ||
5 | Thanks to max@koeln.ccc.de for fixing and extending | |
6 | the example for the second channel. | |
7 | ||
8 | This program is distributed under the GPL, version 2 | |
9 | */ | |
ad397a4b TJ |
10 | |
11 | #include <stdio.h> | |
579b006f | 12 | #include <stdlib.h> |
ad397a4b TJ |
13 | #include <unistd.h> |
14 | #include <ftdi.h> | |
15 | ||
16 | int main(int argc, char **argv) | |
17 | { | |
cd2ead2f | 18 | struct ftdi_context *ftdi, *ftdi2; |
579b006f | 19 | unsigned char buf[1]; |
ad397a4b TJ |
20 | int f,i; |
21 | ||
08cb09bf | 22 | // Init 1. channel |
cd2ead2f | 23 | if ((ftdi = ftdi_new()) == 0) |
6ac169ea | 24 | { |
cd2ead2f | 25 | fprintf(stderr, "ftdi_new failed\n"); |
6ac169ea TJ |
26 | return EXIT_FAILURE; |
27 | } | |
28 | ||
cd2ead2f UB |
29 | ftdi_set_interface(ftdi, INTERFACE_A); |
30 | f = ftdi_usb_open(ftdi, 0x0403, 0x6001); | |
22d12cda TJ |
31 | if (f < 0 && f != -5) |
32 | { | |
cd2ead2f | 33 | fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(ftdi)); |
1383a2c4 | 34 | ftdi_free(ftdi); |
ad397a4b TJ |
35 | exit(-1); |
36 | } | |
08cb09bf | 37 | printf("ftdi open succeeded(channel 1): %d\n",f); |
ad397a4b | 38 | |
08cb09bf | 39 | printf("enabling bitbang mode(channel 1)\n"); |
cd2ead2f | 40 | ftdi_set_bitmode(ftdi, 0xFF, BITMODE_BITBANG); |
ad397a4b | 41 | |
08cb09bf | 42 | // Init 2. channel |
cd2ead2f | 43 | if ((ftdi2 = ftdi_new()) == 0) |
6ac169ea | 44 | { |
cd2ead2f | 45 | fprintf(stderr, "ftdi_new failed\n"); |
6ac169ea TJ |
46 | return EXIT_FAILURE; |
47 | } | |
cd2ead2f UB |
48 | ftdi_set_interface(ftdi2, INTERFACE_B); |
49 | f = ftdi_usb_open(ftdi2, 0x0403, 0x6001); | |
22d12cda TJ |
50 | if (f < 0 && f != -5) |
51 | { | |
cd2ead2f | 52 | fprintf(stderr, "unable to open ftdi device: %d (%s)\n", f, ftdi_get_error_string(ftdi2)); |
1383a2c4 | 53 | ftdi_free(ftdi2); |
ad397a4b TJ |
54 | exit(-1); |
55 | } | |
08cb09bf | 56 | printf("ftdi open succeeded(channel 2): %d\n",f); |
ad397a4b | 57 | |
08cb09bf | 58 | printf("enabling bitbang mode (channel 2)\n"); |
cd2ead2f | 59 | ftdi_set_bitmode(ftdi2, 0xFF, BITMODE_BITBANG); |
ad397a4b | 60 | |
08cb09bf TJ |
61 | // Write data |
62 | printf("startloop\n"); | |
22d12cda TJ |
63 | for (i = 0; i < 23; i++) |
64 | { | |
08cb09bf TJ |
65 | buf[0] = 0x1; |
66 | printf("porta: %02i: 0x%02x \n",i,buf[0]); | |
cd2ead2f | 67 | f = ftdi_write_data(ftdi, buf, 1); |
22d12cda | 68 | if (f < 0) |
cd2ead2f | 69 | fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi)); |
8ace1862 | 70 | usleep(1 * 1000000); |
ad397a4b | 71 | |
08cb09bf TJ |
72 | buf[0] = 0x2; |
73 | printf("porta: %02i: 0x%02x \n",i,buf[0]); | |
cd2ead2f | 74 | f = ftdi_write_data(ftdi, buf, 1); |
22d12cda | 75 | if (f < 0) |
cd2ead2f | 76 | fprintf(stderr,"write failed on channel 1 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi)); |
8ace1862 | 77 | usleep(1 * 1000000); |
ad397a4b | 78 | |
08cb09bf TJ |
79 | buf[0] = 0x1; |
80 | printf("portb: %02i: 0x%02x \n",i,buf[0]); | |
cd2ead2f | 81 | f = ftdi_write_data(ftdi2, buf, 1); |
22d12cda | 82 | if (f < 0) |
cd2ead2f | 83 | fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi2)); |
8ace1862 | 84 | usleep(1 * 1000000); |
ad397a4b | 85 | |
08cb09bf TJ |
86 | buf[0] = 0x2; |
87 | printf("portb: %02i: 0x%02x \n",i,buf[0]); | |
cd2ead2f | 88 | f = ftdi_write_data(ftdi2, buf, 1); |
22d12cda | 89 | if (f < 0) |
cd2ead2f | 90 | fprintf(stderr,"write failed on channel 2 for 0x%x, error %d (%s)\n", buf[0], f, ftdi_get_error_string(ftdi2)); |
8ace1862 | 91 | usleep(1 * 1000000); |
ad397a4b | 92 | } |
ad397a4b TJ |
93 | printf("\n"); |
94 | ||
08cb09bf | 95 | printf("disabling bitbang mode(channel 1)\n"); |
cd2ead2f UB |
96 | ftdi_disable_bitbang(ftdi); |
97 | ftdi_usb_close(ftdi); | |
1383a2c4 | 98 | ftdi_free(ftdi); |
08cb09bf TJ |
99 | |
100 | printf("disabling bitbang mode(channel 2)\n"); | |
cd2ead2f UB |
101 | ftdi_disable_bitbang(ftdi2); |
102 | ftdi_usb_close(ftdi2); | |
103 | ftdi_free(ftdi2); | |
579b006f JZ |
104 | |
105 | return 0; | |
ad397a4b | 106 | } |