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 open_ftdi():
if (ftdi.ftdi_init(ftdic) < 0) :
print "ftdi_init fehlgeschlagen"
exit(-1)
else:
print "ftdi_init geklappt"
#Öffne FTDI-Chip FT232R - evt. andere Nummern eintragen!
#Tut auch mit FT245BL
ret = ftdi.ftdi_usb_open(ftdic, 0x0403, 0x6001)
if (ret) < 0:
print "Konnte Gerät nicht öffnen:" + ret + "(" + \
ftdi.ftdi_get_error_string(ftdic) + ")"
exit(-1)
else:
print "Gerät erfolgreich geöffnet"
#Bitbag mit DTR, RX und TX beginnen
#2. Argument macht die Pins D0-D7 ansprechbar
#ftdi.ftdi_enable_bitbang(ftdic, D[0]|D[1]|D[2]|D[3]|D[4]|D[5]|D[6]|D[7] )
ftdi.ftdi_enable_bitbang(ftdic,0x1 | 0x2| 0x4| 0x8| 0x10| 0x20| 0x40| 0x80)
#Am Anfang ausschalten
ftdi.ftdi_write_data(ftdic, chr(255), 1)
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 __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)
@app.route('/refresh/')
def refresh():
return redirect(url_for('index'))
def run_http():
app.run(host='0.0.0.0')
# run the HTTP server in a background thread
thread.start_new_thread(run_http, ())
# initialize to the ftdi device
ftdic = ftdi.ftdi_context()
ftdi.ftdi_init(ftdic)
ftdi.ftdi_usb_open(ftdic, 0x0403, 0x6001)
ftdi.ftdi_enable_bitbang(ftdic, RXT | CTS)
while True:
result = " "
ftdi.ftdi_read_pins(ftdic, result)
was_closed = is_closed
is_closed = 0 != ord(result) & RXT
if was_closed != is_closed:
with open('status', 'w') as f: \
f.write ('closed' if is_closed else 'open')
LOG.info("Full: %s\t Masked: %s\t Is Closed: %s\t To Write: %s", \
hex(ord(result)),
def init_ftdi(log):
logger = log
ftdi.ftdi_init(F)
result = ftdi.ftdi_usb_open(F, 0x0403, 0x6011)
if result <> 0:
print "Unable to open ftdi device"
return redirect(url_for('index'))
@app.route('/refresh/')
def refresh():
return redirect(url_for('index'))
def run_http():
app.run(host='0.0.0.0')
# run the HTTP server in a background thread
thread.start_new_thread(run_http, ())
# initialize to the ftdi device
ftdic = ftdi.ftdi_context()
ftdi.ftdi_init(ftdic)
ftdi.ftdi_usb_open(ftdic, 0x0403, 0x6001)
ftdi.ftdi_enable_bitbang(ftdic, RXT | CTS)
while True:
result = " "
ftdi.ftdi_read_pins(ftdic, result)
was_closed = is_closed
is_closed = 0 != ord(result) & RXT
if was_closed != is_closed:
with open ('status', 'w') as f: \
f.write ('closed' if is_closed else 'open')
LOG.info("Full: %s\t Masked: %s\t Is Closed: %s\t To Write: %s", \
hex(ord(result)),
def init_ftdi(log):
logger = log
ftdi.ftdi_init(F)
result = ftdi.ftdi_usb_open(F, 0x0403, 0x6011)
if result <> 0:
print "Unable to open ftdi device"
