def close(self):
# close channel A
if bool(self.ft_ctx.usb_dev):
print "Closing FTDI Interface"
ftdi.ftdi_set_bitmode(self.ft_ctx, 0xfb, ftdi.BITMODE_RESET)
ftdi.ftdi_usb_close(self.ft_ctx)
ftdi.ftdi_deinit(self.ft_ctx)
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 close(self):
# close channel A
if bool(self.ft_ctx.usb_dev):
print "Closing FTDI Interface"
ftdi.ftdi_set_bitmode(self.ft_ctx, 0xfb, ftdi.BITMODE_RESET)
ftdi.ftdi_usb_close(self.ft_ctx)
ftdi.ftdi_deinit(self.ft_ctx)
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 shutdown(self):
""" Shutdown ftdi com.
"""
self._log.info("Try to close ftdi port")
err = ftdi.ftdi_usb_close(self.__ftdic)
if err < 0:
self._log.error("Can't close ftdi com. (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
raise FtdiError("Can't close ftdi com. (%d, %s)" % (err, ftdi.ftdi_get_error_string(self.__ftdic)))
ftdi.ftdi_deinit(self.__ftdic)
def fermerPort(ftdiContext):
# Exemple de desactivation des compteurs
ftdi.ftdi_set_bitmode(ftdiContext, NO_PORT, ftdi.BITMODE_CBUS);
ret = ftdi.ftdi_usb_close(ftdiContext)
if ret < 0:
raise IOError("Impossible de fermer le port : " + repr(ret) + "(" + ftdi.ftdi_get_error_string(ftdiContext) + ")")
ftdi.ftdi_deinit(ftdiContext);
del ftdiContext
def __del__(self):
'''
Docstring
Parameters
----------
Returns
-------
'''
if self.port is not None:
ftdi.ftdi_disable_bitbang(self.port)
ftdi.ftdi_usb_close(self.port)
ftdi.ftdi_deinit(self.port)
def __del__(self):
'''
Docstring
Parameters
----------
Returns
-------
'''
if self.port is not None:
ftdi.ftdi_disable_bitbang(self.port)
ftdi.ftdi_usb_close(self.port)
ftdi.ftdi_deinit(self.port)
def close_ftdi():
write_ftdi(255) # alle pins auf 0
ret = ftdi.ftdi_usb_close(ftdic) # ftdi-usb deinitialisieren
if ret < 0:
print "Konnte Gerät nicht schließen:" + ret + "(" + \
ftdi.ftdi_get_error_string(ftdic) + ")"
exit(-1)
else:
print "Gerät"
ftdi.ftdi_disable_bitbang(ftdic);
ftdi.ftdi_deinit(ftdic);
del 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
