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 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