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)),