| 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 ftdi |
| 13 | import time |
| 14 | |
| 15 | # initialize |
| 16 | ftdic = ftdi.new() |
| 17 | if ftdic == 0: |
| 18 | print 'new failed: %d', ret |
| 19 | os._exit( 1 ) |
| 20 | |
| 21 | # list all devices |
| 22 | devlist = ftdi.new_device_listpp() |
| 23 | ret = ftdi.usb_find_all( ftdic, devlist, 0x0403, 0x6001 ) |
| 24 | if ret < 0: |
| 25 | print 'ftdi_usb_find_all failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) |
| 26 | os._exit( 1 ) |
| 27 | print 'Number of FTDI devices found: %d\n' % ret |
| 28 | count = ret |
| 29 | curdev = devlist |
| 30 | for i in range( count ): |
| 31 | print 'Checking device: %d' % i |
| 32 | |
| 33 | curnode = ftdi.device_listpp_value( curdev ) |
| 34 | ret, manufacturer, description, serial = ftdi.usb_get_strings( ftdic, curnode.dev, 128, 128, 128 ) |
| 35 | if ret < 0: |
| 36 | print 'ftdi_usb_get_strings failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) |
| 37 | os._exit( 1 ) |
| 38 | print 'Manufacturer: %s, Description: %s, Serial: %s\n' % ( manufacturer, description, serial ) |
| 39 | ftdi.device_listpp_assign( curdev, curnode.next ) |
| 40 | |
| 41 | # open usb |
| 42 | ret = ftdi.usb_open( ftdic, 0x0403, 0x6001 ) |
| 43 | if ret < 0: |
| 44 | print 'unable to open ftdi device: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) |
| 45 | os._exit( 1 ) |
| 46 | |
| 47 | |
| 48 | # bitbang |
| 49 | ret = ftdi.set_bitmode( ftdic, 0xff, ftdi.BITMODE_BITBANG ) |
| 50 | if ret < 0: |
| 51 | print 'Cannot enable bitbang' |
| 52 | os._exit( 1 ) |
| 53 | print 'turning everything on' |
| 54 | ftdi.write_data( ftdic, chr(0xff), 1 ) |
| 55 | time.sleep( 1 ) |
| 56 | print 'turning everything off\n' |
| 57 | ftdi.write_data( ftdic, chr(0x00), 1 ) |
| 58 | time.sleep( 1 ) |
| 59 | for i in range( 8 ): |
| 60 | print 'enabling bit', i |
| 61 | val = 2**i |
| 62 | ftdi.write_data( ftdic, chr(val), 1 ) |
| 63 | time.sleep ( 1 ) |
| 64 | ftdi.disable_bitbang( ftdic ) |
| 65 | print '' |
| 66 | |
| 67 | |
| 68 | # read chip id |
| 69 | ret, chipid = ftdi.read_chipid( ftdic ) |
| 70 | print 'FDTI chip id: %X\n' % chipid |
| 71 | |
| 72 | |
| 73 | # read eeprom |
| 74 | eeprom_addr = 1 |
| 75 | ret, eeprom_val = ftdi.read_eeprom_location( ftdic, eeprom_addr ) |
| 76 | print 'eeprom @ %d: 0x%04x\n' % ( eeprom_addr, eeprom_val ) |
| 77 | |
| 78 | print 'eeprom:' |
| 79 | ret=ftdi.read_eeprom( ftdic ) |
| 80 | ret=ftdi.eeprom_decode( ftdic ,1) |
| 81 | |
| 82 | |
| 83 | # close usb |
| 84 | ret = ftdi.usb_close( ftdic ) |
| 85 | if ret < 0: |
| 86 | print 'unable to close ftdi device: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) |
| 87 | os._exit( 1 ) |
| 88 | ftdi.free( ftdic ) |