def ouvrirPort(port):
# Création du context
ftdiContext = ftdi.ftdi_context()
# Initialisation du context
if ftdi.ftdi_init(ftdiContext) < 0:
raise IOError("Echec de l'initialisation")
# Ouverture du port
ret = ftdi.ftdi_usb_open(ftdiContext, 0x0403, 0x6001)
if (ret) < 0:
raise IOError("Impossible d'ouvrir le port " + hex(port) + " : " + repr(ret) + "(" + ftdi.ftdi_get_error_string(ftdiContext) + ")")
# Fixer le debit à 1200 bit/s => 150 car/s (8 bits/car)
ret = ftdi.ftdi_set_baudrate(ftdiContext, 1200)
if (ret) < 0:
raise IOError("Impossible de fixer le baudrate pour le port " + hex(port) + " : " + repr(ret) + "(" + ftdi.ftdi_get_error_string(ftdiContext) + ")")
# Pour une obscure raison pour le moment il faut mettre ftdi.BITS_8
# et non ftdi.BITS_7 comme indiqué dans la spec pour que cela fonctionne ???
ret = ftdi.ftdi_set_line_property(ftdiContext, ftdi.BITS_8, ftdi.EVEN, ftdi.STOP_BIT_1)
# Activation du compteur 1 et lecture de qqes trames
ret = ftdi.ftdi_set_bitmode(ftdiContext, port, ftdi.BITMODE_CBUS);
# Fixer le timeout de lecture
ftdiContext.usb_read_timeout = 50000;
return ftdiContext
def __init__(self, serial=None, index=None):
self.ftdic = ftdi.ftdi_context()
self.ftdi = ftdi
self.sensors = dict()
self.hw_sw = dict()
self.hw_sw["DC"] = nvouten
self.hw_sw["SW0"] = sws[0]
self.hw_sw["SW1"] = sws[1]
self.hw_sw["ALERT"] = alert
self.hw_sw["GPIO0"] = gpios[0]
self.hw_sw["GPIO1"] = gpios[1]
self.hw_sw["GPIO2"] = gpios[2]
self.hw_sw["GPIO3"] = gpios[3]
self.switches = dict()
try:
ret = ftdi.ftdi_init(self.ftdic)
if ret < 0:
raise Exception
ret = ftdi.ftdi_usb_open_desc_index(self.ftdic, 0x0403, 0x06010, "PMC-17 v1.0", serial, index if index else 0)
if ret < 0:
raise Exception("Could not open device", ftdi.ftdi_get_error_string(self.ftdic))
ret = ftdi.ftdi_set_interface(self.ftdic, ftdi.INTERFACE_A)
if ret < 0:
raise Exception
self.hw = i2c_ftdi.i2c_ftdi(self.ftdic, scl, sda_out, sda_in, 400000, initial_output)
self.i2c = i2c.i2c(self.hw)
except Exception as e:
ftdi.ftdi_deinit(self.ftdic)
raise
def init(self):
""" Init ftdi com.
"""
# Create ftdi context
self._log.info("Try to Create ftdi context")
self.__ftdic = ftdi.ftdi_context()
if self.__ftdic is None:
self._log.error("Can't create ftdi context")
raise FtdiError("Can't create ftdi context")
# Init ftdi context
err = ftdi.ftdi_init(self.__ftdic)
if err < 0:
self._log.error("Can't init ftdi context (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
raise FtdiError("Can't init ftdi context (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
# Open port
self._log.info("Try to open ftdi port")
err = ftdi.ftdi_usb_open(self.__ftdic, USB_VENDOR, USB_PRODUCT)
if err < 0:
self._log.error("Can't open usb (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
raise FtdiError("Can't open usb (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
err = ftdi.ftdi_set_baudrate(self.__ftdic, BAUD_RATE)
if err < 0:
self._log.error("Can't set baudrate (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
raise FtdiError("Can't set baudrate (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
# Because of the usb interface, must use 8 bits transmission data, instead of 7 bits
err = ftdi.ftdi_set_line_property(self.__ftdic, ftdi.BITS_8, ftdi.EVEN, ftdi.STOP_BIT_1)
if err < 0:
self._log.error("Can't set line property (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
raise FtdiError("Can't set line property (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
def reset(self, bootloader=False):
handle = ftdi.ftdi_context()
if ftdi.ftdi_init(handle) < 0:
print 'Initialization error.',
print
sys.exit(-1)
serialnum = self.getFTDIIdFromDevPort(self.port)
if subprocess.call(['rmmod', 'ftdi_sio']) != 0:
print 'Close all processes that may access serial ports. You may also need to run the program as root.',
print
sys.exit(-1)
error = ftdi.ftdi_usb_open_desc(handle, FT232R_VENDOR, FT232R_PRODUCT, None, serialnum)
if error < 0:
print ('Unable to open port. Error:' + str(error)),
print
subprocess.call(['modprobe', 'ftdi_sio'])
sys.exit(-1)
item0, item1 = self.guessResetDirection(handle)
resetValue = item0
nBootValue = item1
if (resetValue, nBootValue) == (None, None):
ftdi.ftdi_usb_close(handle)
subprocess.call(['modprobe', 'ftdi_sio'])
return 1
else:
ftdi.ftdi_set_bitmode(handle, resetValue, ftdi.BITMODE_CBUS)
time.sleep(0.5)
if bootloader:
ftdi.ftdi_set_bitmode(handle, nBootValue, ftdi.BITMODE_CBUS)
time.sleep(0.10000000000000001)
ftdi.ftdi_set_bitmode(handle, 0, ftdi.BITMODE_CBUS)
ftdi.ftdi_usb_close(handle)
subprocess.call(['modprobe', 'ftdi_sio'])
time.sleep(1)
return None
def reset(self, bootloader=False):
handle = ftdi.ftdi_context()
if ftdi.ftdi_init(handle) < 0:
print 'Initialization error.',
print
sys.exit(-1)
serialnum = self.getFTDIIdFromDevPort(self.port)
if subprocess.call(['rmmod', 'ftdi_sio']) != 0:
print 'Close all processes that may access serial ports. You may also need to run the program as root.',
print
sys.exit(-1)
error = ftdi.ftdi_usb_open_desc(handle, FT232R_VENDOR, FT232R_PRODUCT, None, serialnum)
if error < 0:
print ('Unable to open port. Error:' + str(error)),
print
subprocess.call(['modprobe', 'ftdi_sio'])
sys.exit(-1)
item0, item1 = self.guessResetDirection(handle)
resetValue = item0
nBootValue = item1
if (resetValue, nBootValue) == (None, None):
ftdi.ftdi_usb_close(handle)
subprocess.call(['modprobe', 'ftdi_sio'])
return 1
else:
ftdi.ftdi_set_bitmode(handle, resetValue, ftdi.BITMODE_CBUS)
time.sleep(0.5)
if bootloader:
ftdi.ftdi_set_bitmode(handle, nBootValue, ftdi.BITMODE_CBUS)
time.sleep(0.10000000000000001)
ftdi.ftdi_set_bitmode(handle, 0, ftdi.BITMODE_CBUS)
ftdi.ftdi_usb_close(handle)
subprocess.call(['modprobe', 'ftdi_sio'])
time.sleep(1)
return None
def __init__(self, serial=None, index=None):
self.ftdic = ftdi.ftdi_context()
self.ftdi = ftdi
self.sensors = dict()
self.hw_sw = dict()
self.hw_sw["DC"] = nvouten
self.hw_sw["SW0"] = sws[0]
self.hw_sw["SW1"] = sws[1]
self.hw_sw["ALERT"] = alert
self.hw_sw["GPIO0"] = gpios[0]
self.hw_sw["GPIO1"] = gpios[1]
self.hw_sw["GPIO2"] = gpios[2]
self.hw_sw["GPIO3"] = gpios[3]
self.switches = dict()
try:
ret = ftdi.ftdi_init(self.ftdic)
if ret < 0:
raise Exception
ret = ftdi.ftdi_usb_open_desc_index(self.ftdic, 0x0403, 0x06010,
"PMC-17 v1.0", serial,
index if index else 0)
if ret < 0:
raise Exception("Could not open device",
ftdi.ftdi_get_error_string(self.ftdic))
ret = ftdi.ftdi_set_interface(self.ftdic, ftdi.INTERFACE_A)
if ret < 0:
raise Exception
self.hw = i2c_ftdi.i2c_ftdi(self.ftdic, scl, sda_out, sda_in,
400000, initial_output)
self.i2c = i2c.i2c(self.hw)
except Exception as e:
ftdi.ftdi_deinit(self.ftdic)
raise
def __init__(self):
# open channel A
self.ft_ctx = ftdi.ftdi_context()
if ftdi.ftdi_init(self.ft_ctx) < 0:
raise RuntimeError("ftdi_init failed")
ftdi.ftdi_set_interface(self.ft_ctx, ftdi.INTERFACE_A)
if ftdi.ftdi_usb_open(self.ft_ctx, 0x0403, 0x6010) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(self.ft_ctx))
try:
# open and purge channel B
ft_ctx_b = ftdi.ftdi_context()
if ftdi.ftdi_init(ft_ctx_b) < 0:
raise RuntimeError("ftdi_init failed")
ftdi.ftdi_set_interface(ft_ctx_b, ftdi.INTERFACE_B)
if ftdi.ftdi_usb_open(ft_ctx_b, 0x0403, 0x6010) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(ft_ctx_b))
# purge buffers
if ftdi.ftdi_usb_purge_buffers(ft_ctx_b) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(ft_ctx_b))
# close channel B
ftdi.ftdi_usb_close(ft_ctx_b)
ftdi.ftdi_deinit(ft_ctx_b)
except RuntimeError:
self.close()
raise
# setup FIFO mode
try:
self.ft_ctx.usb_read_timeout = 5000000
self.ft_ctx.usb_write_timeout = 5000000
ftdi.ftdi_read_data_set_chunksize(self.ft_ctx, self.READ_CHUNKSIZE)
ftdi.ftdi_write_data_set_chunksize(self.ft_ctx,
self.WRITE_CHUNKSIZE)
if ftdi.ftdi_usb_reset(self.ft_ctx) != 0:
raise RuntimeError("Reset failed")
time.sleep(100e-3)
if ftdi.ftdi_set_bitmode(self.ft_ctx, 0, ftdi.BITMODE_SYNCFF) != 0:
raise RuntimeError("Setting FIFO mode failed")
if ftdi.ftdi_set_latency_timer(self.ft_ctx, 1) != 0:
raise RuntimeError("Setting latency failed")
except RuntimeError:
self.close()
raise
def __init__(self):
# open channel A
self.ft_ctx = ftdi.ftdi_context()
if ftdi.ftdi_init(self.ft_ctx) < 0:
raise RuntimeError("ftdi_init failed")
ftdi.ftdi_set_interface(self.ft_ctx, ftdi.INTERFACE_A)
if ftdi.ftdi_usb_open(self.ft_ctx, 0x0403, 0x6010) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(self.ft_ctx))
try:
# open and purge channel B
ft_ctx_b = ftdi.ftdi_context()
if ftdi.ftdi_init(ft_ctx_b) < 0:
raise RuntimeError("ftdi_init failed")
ftdi.ftdi_set_interface(ft_ctx_b, ftdi.INTERFACE_B)
if ftdi.ftdi_usb_open(ft_ctx_b, 0x0403, 0x6010) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(ft_ctx_b))
# purge buffers
if ftdi.ftdi_usb_purge_buffers(ft_ctx_b) != 0:
raise RuntimeError(ftdi.ftdi_get_error_string(ft_ctx_b))
# close channel B
ftdi.ftdi_usb_close(ft_ctx_b)
ftdi.ftdi_deinit(ft_ctx_b)
except RuntimeError:
self.close()
raise
# setup FIFO mode
try:
self.ft_ctx.usb_read_timeout = 5000000;
self.ft_ctx.usb_write_timeout = 5000000;
ftdi.ftdi_read_data_set_chunksize(self.ft_ctx, self.READ_CHUNKSIZE)
ftdi.ftdi_write_data_set_chunksize(self.ft_ctx, self.WRITE_CHUNKSIZE)
if ftdi.ftdi_usb_reset(self.ft_ctx) != 0:
raise RuntimeError("Reset failed")
time.sleep(100e-3)
if ftdi.ftdi_set_bitmode(self.ft_ctx, 0, ftdi.BITMODE_SYNCFF) != 0:
raise RuntimeError("Setting FIFO mode failed")
if ftdi.ftdi_set_latency_timer(self.ft_ctx, 1) != 0:
raise RuntimeError("Setting latency failed")
except RuntimeError:
self.close()
raise
#!/usr/bin/python import ftdi import time F = ftdi.ftdi_context() ftdi.ftdi_init(F) ftdi.ftdi_usb_open(F, 0x0403, 0x6011) ftdi.ftdi_set_interface(F, ftdi.INTERFACE_B) ftdi.ftdi_set_bitmode(F, 0x08, ftdi.BITMODE_BITBANG) ftdi.ftdi_write_data(F, '\x00', 1) ftdi.ftdi_usb_close(F)
