def enumerate_device_serials(vid=FT232H_VID, pid=FT232H_PID):
"""Return a list of all FT232H device serial numbers connected to the
machine. You can use these serial numbers to open a specific FT232H device
by passing it to the FT232H initializer's serial parameter.
"""
try:
# Create a libftdi context.
ctx = None
ctx = ftdi.new()
# Enumerate FTDI devices.
device_list = None
count, device_list = ftdi.usb_find_all(ctx, vid, pid)
if count < 0:
raise RuntimeError('ftdi_usb_find_all returned error {0}: {1}'.format(count, ftdi.get_error_string(self._ctx)))
# Walk through list of devices and assemble list of serial numbers.
devices = []
while device_list is not None:
# Get USB device strings and add serial to list of devices.
ret, manufacturer, description, serial = ftdi.usb_get_strings(ctx, device_list.dev, 256, 256, 256)
if serial is not None:
devices.append(serial)
device_list = device_list.next
return devices
finally:
# Make sure to clean up list and context when done.
if device_list is not None:
ftdi.list_free(device_list)
if ctx is not None:
ftdi.free(ctx)
def enumerate_device_serials(vid=FT232H_VID, pid=FT232H_PID):
"""Return a list of all FT232H device serial numbers connected to the
machine. You can use these serial numbers to open a specific FT232H device
by passing it to the FT232H initializer's serial parameter.
"""
try:
# Create a libftdi context.
ctx = None
ctx = ftdi.new()
# Enumerate FTDI devices.
device_list = None
count, device_list = ftdi.usb_find_all(ctx, vid, pid)
if count < 0:
raise RuntimeError('ftdi_usb_find_all returned error {0}: {1}'.format(count, ftdi.get_error_string(self._ctx)))
# Walk through list of devices and assemble list of serial numbers.
devices = []
while device_list is not None:
# Get USB device strings and add serial to list of devices.
ret, manufacturer, description, serial = ftdi.usb_get_strings(ctx, device_list.dev, 256, 256, 256)
if serial is not None:
devices.append(serial)
device_list = device_list.next
return devices
finally:
# Make sure to clean up list and context when done.
if device_list is not None:
ftdi.list_free(device_list)
if ctx is not None:
ftdi.free(ctx)
def __init__(self, vid=FT232H_VID, pid=FT232H_PID, serial=None):
"""Create a FT232H object. Will search for the first available FT232H
device with the specified USB vendor ID and product ID (defaults to
FT232H default VID & PID). Can also specify an optional serial number
string to open an explicit FT232H device given its serial number. See
the FT232H.enumerate_device_serials() function to see how to list all
connected device serial numbers.
"""
# Initialize FTDI device connection.
self._ctx = ftdi.new()
if self._ctx == 0:
raise RuntimeError('ftdi_new failed! Is libftdi1 installed?')
# Register handler to close and cleanup FTDI context on program exit.
atexit.register(self.close)
if serial is None:
# Open USB connection for specified VID and PID if no serial is specified.
self._check(ftdi.usb_open, vid, pid)
else:
# Open USB connection for VID, PID, serial.
##self._check(ftdi.usb_open_string, 's:{0}:{1}:{2}'.format(vid, pid, serial))
finaldev = None
device_list = None
count, device_list = ftdi.usb_find_all(self._ctx, vid, pid)
if count < 0:
raise RuntimeError('ftdi_usb_find_all returned error {0}: {1}'.format(count, ftdi.get_error_string(self._ctx)))
# Walk through list of devices and assemble list of serial numbers.
devices = []
while device_list is not None:
# Get USB device strings and add serial to list of devices.
ret, manufacturer, description, serialtest = ftdi.usb_get_strings(self._ctx, device_list.dev, 256, 256, 256)
if serialtest == serial:
finaldev = device_list.dev
device_list = device_list.next
if finaldev is None:
raise RuntimeError('Could not find correct device')
self._check(ftdi.usb_open_dev, finaldev)
#
# Reset device.
self._check(ftdi.usb_reset)
# Disable flow control. Commented out because it is unclear if this is necessary.
#self._check(ftdi.setflowctrl, ftdi.SIO_DISABLE_FLOW_CTRL)
# Change read & write buffers to maximum size, 65535 bytes.
self._check(ftdi.read_data_set_chunksize, 65535)
self._check(ftdi.write_data_set_chunksize, 65535)
# Clear pending read data & write buffers.
self._check(ftdi.usb_purge_buffers)
# Enable MPSSE and syncronize communication with device.
self._mpsse_enable()
self._mpsse_sync()
# Initialize all GPIO as inputs.
self._write('\x80\x00\x00\x82\x00\x00')
self._direction = 0x0000
self._level = 0x0000
def id(self): # pylint: disable=invalid-name,too-many-branches,too-many-return-statements
"""Return a unique id for the detected chip, if any."""
# There are some times we want to trick the platform detection
# say if a raspberry pi doesn't have the right ID, or for testing
try:
return os.environ['BLINKA_FORCECHIP']
except KeyError: # no forced chip, continue with testing!
pass
# Special case, if we have an environment var set, we could use FT232H
try:
if os.environ['BLINKA_FT232H']:
# we can't have ftdi1 as a dependency cause its wierd
# to install, sigh.
import ftdi1 as ftdi # pylint: disable=import-error
try:
ctx = None
ctx = ftdi.new() # Create a libftdi context.
# Enumerate FTDI devices.
count, _ = ftdi.usb_find_all(ctx, 0, 0)
if count < 0:
raise RuntimeError(
'ftdi_usb_find_all returned error %d : %s' % count,
ftdi.get_error_string(self._ctx))
if count == 0:
raise RuntimeError('BLINKA_FT232H environment variable' + \
'set, but no FT232H device found')
finally:
# Make sure to clean up list and context when done.
if ctx is not None:
ftdi.free(ctx)
return FT232H
except KeyError: # no FT232H environment var
pass
platform = sys.platform
if platform == "linux" or platform == "linux2":
return self._linux_id()
if platform == "esp8266":
return ESP8266
if platform == "samd21":
return SAMD21
if platform == "pyboard":
return STM32
# nothing found!
return None
def __init__(self, num_pixels, num_rows):
# Create a libftdi context.
ctx = None
ctx = ftdi.new()
# Define USB vendor and product ID
vid = 0x0403
pid = 0x6014
# Enumerate FTDI devices.
self.serial = None
device_list = None
count, device_list = ftdi.usb_find_all(ctx, vid, pid)
while device_list is not None:
# Get USB device strings and add serial to list of devices.
ret, manufacturer, description, serial = ftdi.usb_get_strings(ctx, device_list.dev, 256, 256, 256)
print 'return: {0}, manufacturer: {1}, description: {2}, serial: |{3}|'.format(ret,manufacturer,description,serial)
if 'FTDI' in manufacturer and 'Serial' in description and 'FT' in serial:
self.serial = serial
device_list = device_list.next
# Make sure to clean up list and context when done.
if device_list is not None:
ftdi.list_free(device_list)
if ctx is not None:
ftdi.free(ctx)
# Create an FT232H object.
self.ft232h = FT232H.FT232H(serial=self.serial)
# Create an FT232H object.
self.ft232h = FT232H.FT232H()
# Create a SPI interface for the FT232H object. Set the SPI bus to 6mhz.
self.spi = FT232H.SPI(self.ft232h, max_speed_hz=SPI_BAUD)
# Create a pixel data buffer and lookup table.
self.buffer = bytearray(num_pixels*BYTES_PER_PIXEL*3)
self.lookup = self.build_byte_lookup()
#print self.lookup
self.set_brightness(MAX_INTENSITY/2) #set brightness to 25% by default
self.num_pixels = num_pixels
self.rows = num_rows
self.cols = num_pixels/num_rows
import os
import sys
import ftdi1 as ftdi
import time
UM232H_B_VID = 0x0403
UM232H_B_PID = 0x6014
# initialize
ftdic = ftdi.new()
if ftdic == 0:
print('new failed: %d', ret)
os._exit(1)
# try to list ftdi devices 0x6010 or 0x6001
ret, devlist = ftdi.usb_find_all(ftdic, UM232H_B_VID, UM232H_B_PID)
if ret <= 0:
ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6001)
if ret < 0:
print('ftdi_usb_find_all failed: %d (%s)' %
(ret, ftdi.get_error_string(ftdic)))
os._exit(1)
print('Number of FTDI devices found: %d\n' % ret)
curnode = devlist
i = 0
while (curnode != None):
ret, manufacturer, description, serial = ftdi.usb_get_strings(
ftdic, curnode.dev)
if ret < 0:
print('ftdi_usb_get_strings failed: %d (%s)' %
#!/usr/bin/env python
import os
import sys
import ftdi1 as ftdi
import time
ftdic = ftdi.new()
if ftdic == 0:
print('new failed: %d', ret)
os._exit(1)
# try to list ftdi devices 0x6010 or 0x6001
ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6010)
if ret <= 0:
ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6001)
if ret < 0:
print('ftdi_usb_find_all failed: %d (%s)' %
(ret, ftdi.get_error_string(ftdic)))
os._exit(1)
print('Number of FTDI devices found: %d\n' % ret)
curnode = devlist
i = 0
while (curnode != None):
ret, manufacturer, description, serial = ftdi.usb_get_strings(
ftdic, curnode.dev)
if ret < 0:
print('ftdi_usb_get_strings failed: %d (%s)' %
(ret, ftdi.get_error_string(ftdic)))
os._exit(1)
if value == ftdi.CBUSX_TXRXLED:
return 'TXRXLED'
if value == ftdi.CBUSX_VBUS_SENSE:
return 'VBUS_SENSE'
return 'UNKNOWN'
# Surround the program with a try ... except clause.
try:
# Allocate and inialize an ftdi context.
ftdic = ftdi.new()
if ftdic == 0:
raise ErrorMsg('ftdi.new() failed')
# List all the FT230X devices.
nDevices, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6015)
if nDevices < 0:
raise ErrorMsg('ftdi.usb_find_all error = %s' % ftdi.get_error_string(ftdic))
elif nDevices == 0:
raise ErrorMsg('No FT230X devices found')
elif nDevices != 1:
raise ErrorMsg('More than one FT230X device found')
# Display the identified single FT230X device.
ret, manufacturer, description, serial = ftdi.usb_get_strings(ftdic, devlist.dev)
if ret < 0:
raise ErrorMsg('ftdi.usb_get_strings error = %s' % ftdi.get_error_string(ftdic))
print 'manufacturer="%s" description="%s" serial="%s"' % (manufacturer, description, serial)
# Open the identified single FT230X device.
ret = ftdi.usb_open_desc(ftdic, 0x0403, 0x6015, description, serial)
import os
import sys
import ftdi1 as ftdi
import time
# version
print ('version: %s\n' % ftdi.__version__)
# initialize
ftdic = ftdi.new()
if ftdic == 0:
print('new failed: %d' % ret)
os._exit(1)
# try to list ftdi devices 0x6010 or 0x6001
ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6010)
if ret <= 0:
ret, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6001)
if ret < 0:
print('ftdi_usb_find_all failed: %d (%s)' %
(ret, ftdi.get_error_string(ftdic)))
os._exit(1)
print('devices: %d' % ret)
curnode = devlist
i = 0
while(curnode != None):
ret, manufacturer, description, serial = ftdi.usb_get_strings(
ftdic, curnode.dev)
if ret < 0:
print('ftdi_usb_get_strings failed: %d (%s)' %
import os
import sys
import ftdi1 as ftdi
import time
UM232H_B_VID = 0x0403
UM232H_B_PID = 0x6014
# initialize
ftdic = ftdi.new()
if ftdic == 0:
print( 'new failed: %d', ret )
os._exit( 1 )
# try to list ftdi devices 0x6010 or 0x6001
ret, devlist = ftdi.usb_find_all( ftdic, UM232H_B_VID, UM232H_B_PID )
if ret <= 0:
ret, devlist = ftdi.usb_find_all( ftdic, 0x0403, 0x6001)
if ret < 0:
print( 'ftdi_usb_find_all failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) )
os._exit( 1 )
print( 'Number of FTDI devices found: %d\n' % ret )
curnode = devlist
i = 0
while( curnode != None ):
ret, manufacturer, description, serial = ftdi.usb_get_strings( ftdic, curnode.dev )
if ret < 0:
print( 'ftdi_usb_get_strings failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdic ) ) )
os._exit( 1 )
print( 'Device #%d: manufacturer="%s" description="%s" serial="%s"\n' % ( i, manufacturer, description, serial ) )
if value == ftdi.CBUSH_TXRXLED:
return 'TXRXLED'
if value == ftdi.CBUSH_VBUS_SENSE:
return 'VBUS_SENSE'
return 'UNKNOWN'
# Surround the program with a try ... except clause.
try:
# Allocate and inialize an ftdi context.
ftdic = ftdi.new()
if ftdic == 0:
raise ErrorMsg('ftdi.new() failed')
# List all the FT230X devices.
nDevices, devlist = ftdi.usb_find_all(ftdic, 0x0403, 0x6015)
if nDevices < 0:
raise ErrorMsg('ftdi.usb_find_all error = %s' % ftdi.get_error_string(ftdic));
elif nDevices == 0:
raise ErrorMsg('No FT230X devices found');
elif nDevices != 1:
raise ErrorMsg('More than one FT230X device found');
# Display the identified single FT230X device.
ret, manufacturer, description, serial = ftdi.usb_get_strings(ftdic, devlist.dev)
if ret < 0:
raise ErrorMsg('ftdi.usb_get_strings error = %s' % ftdi.get_error_string(ftdic))
print 'manufacturer="%s" description="%s" serial="%s"' % (manufacturer, description, serial)
# Open the identified single FT230X device.
ret = ftdi.usb_open_desc(ftdic, 0x0403, 0x6015, description, serial);
#BAUD, = sys.argv # command line inputs
BAUD = 400000 # 400kHz, 2xNyquist for 100kHz I2C
FT232H_VID = 0x0403 # Default FTDI FT232H vendor ID
FT232H_PID = 0x6014 # Default FTDI FT232H product ID
# Initialize new context
ftdictx = ftdi.new()
if ftdictx == 0:
print( 'failed to create new context: %d', ret )
os._exit( 1 )
# Try to list FT232H devices
ret, devlist = ftdi.usb_find_all( ftdictx, FT232H_VID, FT232H_PID )
if ret < 0:
print( 'ftdi_usb_find_all failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdictx ) ) )
os._exit( 1 )
print( 'Number of FTDI devices found: %d\n' % ret )
curnode = devlist
#i = 0
#while( curnode != None ):
# ret, manufacturer, description, serial = ftdi.usb_get_strings( ftdictx, curnode.dev )
# if ret < 0:
# print( 'ftdi_usb_get_strings failed: %d (%s)' % ( ret, ftdi.get_error_string( ftdictx ) ) )
# os._exit( 1 )
# print( 'Device #%d: manufacturer="%s" description="%s" serial="%s"\n' % ( i, manufacturer, description, serial ) )
# curnode = curnode.next
# i += 1
