| 1 | #!/usr/bin/env python |
| 2 | # -*- coding: utf-8 -*- |
| 3 | |
| 4 | """Python example program. |
| 5 | |
| 6 | Complete program to demonstrate the usage |
| 7 | of the swig generated python wrapper |
| 8 | |
| 9 | You need to build and install the wrapper first""" |
| 10 | |
| 11 | import os |
| 12 | import sys |
| 13 | import ftdi1 as ftdi |
| 14 | import time |
| 15 | |
| 16 | # version |
| 17 | print ('version: %s\n' % ftdi.__version__) |
| 18 | |
| 19 | # initialize |
| 20 | ftdic = ftdi.new() |
| 21 | if ftdic == 0: |
| 22 | print('new failed: %d' % ret) |
| 23 | os._exit(1) |
| 24 | |
| 25 | # try to list ftdi devices 0x6010 or 0x6001 |
| 26 | ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6010) |
| 27 | if ret <= 0: |
| 28 | ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6001) |
| 29 | |
| 30 | if ret < 0: |
| 31 | print('ftdi_usb_find_all failed: %d (%s)' % |
| 32 | (ret, ftdi.get_error_string(ftdic))) |
| 33 | os._exit(1) |
| 34 | print('devices: %d' % ret) |
| 35 | curnode = devlist |
| 36 | i = 0 |
| 37 | while(curnode != None): |
| 38 | ret, manufacturer, description, serial = ftdi.usb_get_strings( |
| 39 | ftdic, curnode.dev) |
| 40 | if ret < 0: |
| 41 | print('ftdi_usb_get_strings failed: %d (%s)' % |
| 42 | (ret, ftdi.get_error_string(ftdic))) |
| 43 | os._exit(1) |
| 44 | print('#%d: manufacturer="%s" description="%s" serial="%s"\n' % |
| 45 | (i, manufacturer, description, serial)) |
| 46 | curnode = curnode.next |
| 47 | i += 1 |
| 48 | |
| 49 | # open usb |
| 50 | ret = ftdi.usb_open(ftdic, 0x0403, 0x6001) |
| 51 | if ret < 0: |
| 52 | print('unable to open ftdi device: %d (%s)' % |
| 53 | (ret, ftdi.get_error_string(ftdic))) |
| 54 | os._exit(1) |
| 55 | |
| 56 | |
| 57 | # bitbang |
| 58 | ret = ftdi.set_bitmode(ftdic, 0xff, ftdi.BITMODE_BITBANG) |
| 59 | if ret < 0: |
| 60 | print('Cannot enable bitbang') |
| 61 | os._exit(1) |
| 62 | print('turning everything on') |
| 63 | ftdi.write_data(ftdic, chr(0xff), 1) |
| 64 | time.sleep(1) |
| 65 | print('turning everything off\n') |
| 66 | ftdi.write_data(ftdic, chr(0x00), 1) |
| 67 | time.sleep(1) |
| 68 | for i in range(8): |
| 69 | val = 2 ** i |
| 70 | print('enabling bit #%d (0x%02x)' % (i, val)) |
| 71 | ftdi.write_data(ftdic, chr(val), 1) |
| 72 | time.sleep(1) |
| 73 | ftdi.disable_bitbang(ftdic) |
| 74 | print('') |
| 75 | |
| 76 | |
| 77 | # read pins |
| 78 | ret, pins = ftdi.read_pins(ftdic) |
| 79 | if (ret == 0): |
| 80 | if sys.version_info[0] < 3: # python 2 |
| 81 | pins = ord(pins) |
| 82 | else: |
| 83 | pins = pins[0] |
| 84 | print('pins: 0x%x' % pins) |
| 85 | |
| 86 | |
| 87 | # read chip id |
| 88 | ret, chipid = ftdi.read_chipid(ftdic) |
| 89 | if (ret == 0): |
| 90 | print('chip id: %x\n' % chipid) |
| 91 | |
| 92 | |
| 93 | # read eeprom |
| 94 | eeprom_addr = 1 |
| 95 | ret, eeprom_val = ftdi.read_eeprom_location(ftdic, eeprom_addr) |
| 96 | if (ret == 0): |
| 97 | print('eeprom @ %d: 0x%04x\n' % (eeprom_addr, eeprom_val)) |
| 98 | |
| 99 | print('eeprom:') |
| 100 | ret = ftdi.read_eeprom(ftdic) |
| 101 | size = 128 |
| 102 | ret, eeprom = ftdi.get_eeprom_buf(ftdic, size) |
| 103 | if (ret == 0): |
| 104 | for i in range(size): |
| 105 | octet = eeprom[i] |
| 106 | if sys.version_info[0] < 3: # python 2 |
| 107 | octet = ord(octet) |
| 108 | sys.stdout.write('%02x ' % octet) |
| 109 | if (i % 8 == 7): |
| 110 | print('') |
| 111 | print('') |
| 112 | |
| 113 | # close usb |
| 114 | ret = ftdi.usb_close(ftdic) |
| 115 | if ret < 0: |
| 116 | print('unable to close ftdi device: %d (%s)' % |
| 117 | (ret, ftdi.get_error_string(ftdic))) |
| 118 | os._exit(1) |
| 119 | |
| 120 | print ('device closed') |
| 121 | ftdi.free(ftdic) |