Python SPI.SpiDev方法代码示例

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def check_if_listening_enabled(self):
        if self.data.settings['user_input']['ANALOG_INPUT']['value'] == 'enabled':
            if not self.analog_input:
                try:
                    ## note - using software spi for now although on the same pins as the hardware spi described below because hardware spi wasnt working with lcd display
                    #SPI_PORT   = 1
                    #SPI_DEVICE = 2
                    #self.analog_input = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))
                    CLK  = 21
                    MISO = 19
                    MOSI = 20
                    CS   = 16
                    self.analog_input = Adafruit_MCP3008.MCP3008(clk=CLK, cs=CS, miso=MISO, mosi=MOSI)

                except:
                    self.message_handler('INFO', 'analog inputs not connected')
            self.poll_analog_inputs()
        else:
            self.root.after(1000, self.check_if_listening_enabled) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def test_hardware_spi_initialize(self):
        """
        Checks to see if the sensor can initialize on the hardware SPI interface.

        Will fail if it cannot find the MAX31856 library or any dependencies.
        Test only checks to see that the sensor can be initialized in Software, does not check the
        hardware connection.
        """
        _logger.debug('test_hardware_SPI_initialize()')
        # Raspberry Pi hardware SPI configuration.
        spi_port = 0
        spi_device = 0
        sensor = MAX31856(hardware_spi=SPI.SpiDev(spi_port, spi_device))

        if sensor:
            self.assertTrue(True)
        else:
            self.assertTrue(False) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def test_get_temperaure_reading(self):
        """
        Checks to see if we can read a temperature from the board, using Hardware SPI
        """
        _logger.debug('test_get_temperaure_reading')
        # Raspberry Pi hardware SPI configuration.
        spi_port = 0
        spi_device = 0
        sensor = MAX31856(hardware_spi=SPI.SpiDev(spi_port, spi_device))

        temp = sensor.read_temp_c()

        if temp:
            self.assertTrue(True)
        else:
            self.assertTrue(False) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def test_get_internal_temperaure_reading(self):
        """
        Checks to see if we can read a temperature from the board, using Hardware SPI
        """
        _logger.debug('test_get_internal_temperature_reading()')
        # Raspberry Pi hardware SPI configuration.
        spi_port = 0
        spi_device = 0
        sensor = MAX31856(hardware_spi=SPI.SpiDev(spi_port, spi_device))

        temp = sensor.read_internal_temp_c()

        if temp:
            self.assertTrue(True)
        else:
            self.assertTrue(False) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def main():
    # Get bus address if provided or use default address
    SPI_DEVICE = 0
    if len(sys.argv) >= 2:
        SPI_DEVICE = int(sys.argv[1], 0)

    if not 0 <= SPI_DEVICE <= 1:
        raise ValueError("Invalid address value")

   # Raspberry Pi hardware SPI configuration.
    SPI_PORT   = 0
    sensor = MAX31855.MAX31855(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE))

    temp = sensor.readTempC()

    print('{0:0.1f}'.format(temp)) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def _get_mcp(self):
        import Adafruit_GPIO.SPI as SPI
        import Adafruit_MCP3008

        if self.mode == MCP3008Mode.SOFTWARE:
            self.mcp = Adafruit_MCP3008.MCP3008(clk=self.CLK, cs=self.CS,
                                                miso=self.MISO, mosi=self.MOSI)
        elif self.mode == MCP3008Mode.HARDWARE:
            self.mcp = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(self.spi_port, self.spi_device))
        else:
            raise RuntimeError('Unsupported MCP3008 mode: {}'.format(self.mode))

        return self.mcp 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def test_get_register_reading(self):
        """
        Checks to see if we can read a register from the device.  Good test for correct
        connectivity.
        """
        _logger.debug('test_get_register_reading()')
        # Raspberry Pi hardware SPI configuration.
        spi_port = 0
        spi_device = 0
        sensor = MAX31856(hardware_spi=SPI.SpiDev(spi_port, spi_device))

        value = sensor._read_register(MAX31856.MAX31856_REG_READ_CR0)
        for ii in range(0x00, 0x10):
            # Read all of the registers, will store data to log
            sensor._read_register(ii) # pylint: disable-msg=protected-access

        if value:
            self.assertTrue(True)
        else:
            self.assertTrue(False)

    #def test_get_temperaure_reading_software_spi(self):
        #"""Checks to see if we can read a temperature from the board, using software SPI
        #"""
        #_logger.debug('test_get_temperature_reading_software_spi')
        ## Raspberry Pi software SPI configuration.
        #software_spi = {"clk": 25, "cs": 8, "do": 9, "di": 10}
        #sensor = MAX31856(software_spi=software_spi)

        #temp = sensor.read_temp_c()

        #if temp:
            #self.assertTrue(True)
        #else:
            #self.assertTrue(False) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def __init__(self, channel):
        self.curVal = 0.0
        self.channel = channel
        self.mcp = Adafruit_MCP3008.MCP3008(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE)) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def __init__(self, pot_channel, cv_channel, minimum, maximum, init_val=0.0):
        self.minimum = minimum
        self.maximum = maximum
        self.range = maximum - minimum
        self.curVal = minimum
        self.cv_offset = 0.011
        self.pot_channel = pot_channel
        self.cv_channel = cv_channel
        self.hist = []
        self.hist_size = 8
        self.hist_idx = 0
        self.average = 0.0
        self.raw_pot = init_val
        self.raw_cv = init_val
        self.static_pot = init_val
        self.resist_val = 0
        self.resisting_change = False
        self.ignoring_pot = False
        self.curminpot = self.raw_pot / 4095
        self.curmaxpot = self.raw_pot / 4095
        self.curmincv = 2048
        self.curmaxcv = 2048
        self.count = 0
        self.filtPotVal = 0
        self.filtCVVal = 0
        #self.smoothCoeff = 0.125
        self.smoothCoeff = 0.33
        self.hyst_amt = 0.002
        self.stablized = True
        self.stable_delta = 0.0
        self.last_in = 0.0
        if (pot_channel >= 0):
            self.mcp_pot = MCP3208.MCP3208(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE_POT))
        if (cv_channel >= 0):
            self.mcp_cv = MCP3208.MCP3208(spi=SPI.SpiDev(SPI_PORT, SPI_DEVICE_CV)) 

# 需要导入模块: from Adafruit_GPIO import SPI [as 别名]
# 或者: from Adafruit_GPIO.SPI import SpiDev [as 别名]
def __init__(self, tc_type=MAX31856_T_TYPE, avgsel=0x0, software_spi=None, hardware_spi=None, gpio=None):
        """
        Initialize MAX31856 device with software SPI on the specified CLK,
        CS, and DO pins.  Alternatively can specify hardware SPI by sending an
        SPI.SpiDev device in the spi parameter.

        Args:
            tc_type (1-byte Hex): Type of Thermocouple.  Choose from class variables of the form
                MAX31856.MAX31856_X_TYPE.
            avgsel (1-byte Hex): Type of Averaging.  Choose from values in CR0 table of datasheet.
                Default is single sample.
            software_spi (dict): Contains the pin assignments for software SPI, as defined below:
                clk (integer): Pin number for software SPI clk
                cs (integer): Pin number for software SPI cs
                do (integer): Pin number for software SPI MISO
                di (integer): Pin number for software SPI MOSI
            hardware_spi (SPI.SpiDev): If using hardware SPI, define the connection
        """
        self._logger = logging.getLogger('Adafruit_MAX31856.MAX31856')
        self._spi = None
        self.tc_type = tc_type
        self.avgsel = avgsel
        # Handle hardware SPI
        if hardware_spi is not None:
            self._logger.debug('Using hardware SPI')
            self._spi = hardware_spi
        elif software_spi is not None:
            self._logger.debug('Using software SPI')
            # Default to platform GPIO if not provided.
            if gpio is None:
                gpio = Adafruit_GPIO.get_platform_gpio()
            self._spi = SPI.BitBang(gpio, software_spi['clk'], software_spi['di'],
                                                  software_spi['do'], software_spi['cs'])
        else:
            raise ValueError(
                'Must specify either spi for for hardware SPI or clk, cs, and do for softwrare SPI!')
        self._spi.set_clock_hz(5000000)
        # According to Wikipedia (on SPI) and MAX31856 Datasheet:
        #   SPI mode 1 corresponds with correct timing, CPOL = 0, CPHA = 1
        self._spi.set_mode(1)
        self._spi.set_bit_order(SPI.MSBFIRST)

        self.cr1 = ((self.avgsel << 4) + self.tc_type)

        # Setup for reading continuously with T-Type thermocouple
        self._write_register(self.MAX31856_REG_WRITE_CR0, self.MAX31856_CR0_READ_CONT)
        self._write_register(self.MAX31856_REG_WRITE_CR1, self.cr1)