if ret < 0:
print('Cannot enable bitbang')
os._exit(1)
#for i in range( 8 ):
val = 0x0
print('enabling bit #%d (0x%02x)' % (i, val))
ftdi.write_data(ftdic, chr(val))
time.sleep(5.5)
val = 0x2
print('enabling bit #%d (0x%02x)' % (i, val))
ftdi.write_data(ftdic, chr(val))
time.sleep(5.5)
#ftdi.write_data( ftdic, chr(0x00))
time.sleep(0.2)
ftdi.disable_bitbang(ftdic)
print('')
# close usb
ret = ftdi.usb_close(ftdic)
if ret < 0:
print('unable to close ftdi device: %d (%s)' %
(ret, ftdi.get_error_string(ftdic)))
os._exit(1)
print('device closed')
ftdi.free(ftdic)
def close_comms(self):
print ftdi.disable_bitbang(self.ftdic)
print ftdi.usb_close(self.ftdic)
ret = ftdi.set_bitmode(ftdic, 0xff, ftdi.BITMODE_BITBANG)
if ret < 0:
print('Cannot enable bitbang')
os._exit(1)
print('turning everything on')
ftdi.write_data(ftdic, chr(0xff), 1)
time.sleep(1)
print('turning everything off\n')
ftdi.write_data(ftdic, chr(0x00), 1)
time.sleep(1)
for i in range(8):
val = 2 ** i
print('enabling bit #%d (0x%02x)' % (i, val))
ftdi.write_data(ftdic, chr(val), 1)
time.sleep(1)
ftdi.disable_bitbang(ftdic)
print('')
# read pins
ret, pins = ftdi.read_pins(ftdic)
if (ret == 0):
if sys.version_info[0] < 3: # python 2
pins = ord(pins)
else:
pins = pins[0]
print('pins: 0x%x' % pins)
# read chip id
ret, chipid = ftdi.read_chipid(ftdic)
## Loop grabbing data and storing in array
print 'Gathering data. Press Ctrl-C to quit.'
output = []
try:
while True:
# Sleep based on baudrate
time.sleep(1.0/BAUD)
# Read the input and store to array
ret, pins = ftdi.read_pins(ftdictx) # reads pins directly, needs sleep time to be exact
output.append(pins)
#ret, databuf = ftdi.read_data(ftdictx) # reads the data buffer, no need for exact timing (just fast enough to keep buffer from overflowing)
#output.extend(databuf)
except KeyboardInterrupt:
pass
## Write captured data to file
with open("output.bin", "wb") as outfile:
writedata = bytearray(output)
outfile.write(writedata)
## Cleanup: free devlist, reset bitmode, close usb, etc
ftdi.list_free(devlist)
ftdi.disable_bitbang(ftdictx)
ftdi.set_bitmode(ftdictx, 0x00, ftdi.BITMODE_RESET)
ret = ftdi.usb_close( ftdictx )
if ret < 0:
print( 'unable to close ftdi device: %d (%s)' % ( ret, ftdi.get_error_string( ftdictx ) ) )
os._exit( 1 )
print ('device closed')
ftdi.free( ftdictx )
