def __init__(self, bus_id, chip_select):
self.deinit()
# Check if the file /dev/i2c-{bus_id} exists and error if not
if not path.exists("/dev/spidev{}.{}".format(bus_id, chip_select)):
raise ValueError("No device found for /dev/spidev{}.{}".format(
bus_id, chip_select))
self._spi = _SPI((bus_id, chip_select))
# Pins aren't used in Linux, so we just use fake pins
self._pins = (self.Pin(0), self.Pin(0), self.Pin(0))
def __init__(self, clock, MOSI=None, MISO=None):
self.deinit()
if detector.board.any_embedded_linux:
from adafruit_blinka.microcontroller.generic_linux.spi import SPI as _SPI
else:
from machine import SPI as _SPI
from microcontroller.pin import spiPorts
for portId, portSck, portMosi, portMiso in spiPorts:
if ((clock == portSck) and # Clock is required!
(MOSI == portMosi or MOSI == None) and # But can do with just output
(MISO == portMiso or MISO == None)): # Or just input
self._spi = _SPI(portId)
self._pins = (portSck, portMosi, portMiso)
break
else:
raise NotImplementedError(
"No Hardware SPI on (SCLK, MOSI, MISO)={}\nValid SPI ports:{}".
format((clock, MOSI, MISO), spiPorts))