def open(self, portnum=None, serialnumber=None): ''' find ports, and open the port with portnum or sn, config the aardvark tool params like bitrate, slave address etc, ''' ports = self.find_devices() logging.debug("find ports: " + str(ports)) self.port = None if(serialnumber): for port in ports: handle = api.py_aa_open(port) if(api.py_aa_unique_id(handle) == serialnumber): logging.debug("SN: " + str(api.py_aa_unique_id(handle))) self.port = port api.py_aa_close(handle) break api.py_aa_close(handle) if(self.port is None): raise_aa_ex(-601) elif(portnum): self.port = portnum else: self.port = 0 logging.debug("open: " + str(self.port)) self.handle = api.py_aa_open(self.port) if(self.handle <= 0): raise_aa_ex(self.handle) # Ensure that the I2C subsystem is enabled api.py_aa_configure(self.handle, I2CConfig.AA_CONFIG_SPI_I2C) api.py_aa_i2c_pullup(self.handle, I2CConfig.AA_I2C_PULLUP_BOTH) api.py_aa_target_power(self.handle, I2CConfig.AA_TARGET_POWER_NONE) # Set the bitrate, in khz self.bitrate = api.py_aa_i2c_bitrate(self.handle, self.bitrate) # Set the bus lock timeout, in ms api.py_aa_i2c_bus_timeout(self.handle, self.bus_timeout) # Free bus api.py_aa_i2c_free_bus(self.handle)
def open(self, portnum=None, serialnumber=None): ''' find ports, and open the port with portnum or sn, config the aardvark tool params like bitrate, slave address etc, ''' ports = self.find_devices() logging.debug("find ports: " + str(ports)) self.port = None if (serialnumber): for port in ports: handle = api.py_aa_open(port) if (api.py_aa_unique_id(handle) == serialnumber): logging.debug("SN: " + str(api.py_aa_unique_id(handle))) self.port = port api.py_aa_close(handle) break api.py_aa_close(handle) if (self.port is None): raise_aa_ex(-601) elif (portnum): self.port = portnum else: self.port = 0 logging.debug("open: " + str(self.port)) self.handle = api.py_aa_open(self.port) if (self.handle <= 0): raise_aa_ex(self.handle) # Ensure that the I2C subsystem is enabled api.py_aa_configure(self.handle, I2CConfig.AA_CONFIG_SPI_I2C) api.py_aa_i2c_pullup(self.handle, I2CConfig.AA_I2C_PULLUP_BOTH) api.py_aa_target_power(self.handle, I2CConfig.AA_TARGET_POWER_NONE) # Set the bitrate, in khz self.bitrate = api.py_aa_i2c_bitrate(self.handle, self.bitrate) # Set the bus lock timeout, in ms api.py_aa_i2c_bus_timeout(self.handle, self.bus_timeout) # Free bus api.py_aa_i2c_free_bus(self.handle)
def aa_i2c_pullup (aardvark, pullup_mask): """usage: int return = aa_i2c_pullup(Aardvark aardvark, u08 pullup_mask)""" if not AA_LIBRARY_LOADED: return AA_INCOMPATIBLE_LIBRARY # Call API function return api.py_aa_i2c_pullup(aardvark, pullup_mask)
def aa_i2c_pullup (aardvark, pullup_mask): """usage: int return = aa_i2c_pullup(Aardvark aardvark, u08 pullup_mask)""" if not AA_LIBRARY_LOADED: return AA_INCOMPATIBLE_LIBRARY # Call API function return api.py_aa_i2c_pullup(aardvark, pullup_mask)