102 lines
2.5 KiB
Python
102 lines
2.5 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""Python example program.
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Complete program to demonstrate the usage
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of the swig generated python wrapper
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You need to build and install the wrapper first"""
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import os
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import ftdi
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import time
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# initialize
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ftdic = ftdi.new()
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if ftdic == 0:
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print 'new failed: %d', ret
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os._exit( 1 )
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# list all devices
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ret, devlist = ftdi.usb_find_all( ftdic, 0x0403, 0x6001 )
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if ret < 0:
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print 'ftdi_usb_find_all failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) )
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os._exit( 1 )
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print 'Number of FTDI devices found: %d\n' % ret
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curnode = devlist
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i = 0
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while( curnode != None ):
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ret, manufacturer, description, serial = ftdi.usb_get_strings( ftdic, curnode.dev )
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if ret < 0:
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print 'ftdi_usb_get_strings failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) )
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os._exit( 1 )
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print 'Device #%d: manufacturer="%s" description="%s" serial="%s"\n' % ( i, manufacturer, description, serial )
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curnode = curnode.next
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i += 1
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# open usb
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ret = ftdi.usb_open( ftdic, 0x0403, 0x6001 )
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if ret < 0:
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print 'unable to open ftdi device: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) )
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os._exit( 1 )
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# bitbang
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ret = ftdi.set_bitmode( ftdic, 0xff, ftdi.BITMODE_BITBANG )
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if ret < 0:
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print 'Cannot enable bitbang'
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os._exit( 1 )
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print 'turning everything on'
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ftdi.write_data( ftdic, chr(0xff), 1 )
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time.sleep( 1 )
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print 'turning everything off\n'
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ftdi.write_data( ftdic, chr(0x00), 1 )
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time.sleep( 1 )
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for i in range( 8 ):
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val = 2**i
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print 'enabling bit #%d (0x%02x)' % (i, val)
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ftdi.write_data( ftdic, chr(val), 1 )
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time.sleep ( 1 )
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ftdi.disable_bitbang( ftdic )
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print ''
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# read pins
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ret, pins = ftdi.read_pins( ftdic )
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print 'pins:',
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if ( ret == 0 ):
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print '%02x' % ord( pins[0] )
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print ''
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# read chip id
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ret, chipid = ftdi.read_chipid( ftdic )
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print 'FDTI chip id: %X\n' % chipid
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# read eeprom
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eeprom_addr = 1
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ret, eeprom_val = ftdi.read_eeprom_location( ftdic, eeprom_addr )
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if (ret==0):
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print 'eeprom @ %d: 0x%04x\n' % ( eeprom_addr, eeprom_val )
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print 'complete eeprom:'
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ret = ftdi.read_eeprom( ftdic )
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size = 128
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ret, eeprom = ftdi.get_eeprom_buf ( ftdic, size )
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if ( ret == 0 ):
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for i in range( size ):
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print '%02x' % ord( eeprom[i] ),
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if ( i % 8 == 7 ):
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print ''
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# close usb
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ret = ftdi.usb_close( ftdic )
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if ret < 0:
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print 'unable to close ftdi device: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) )
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os._exit( 1 )
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ftdi.free( ftdic )
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