Merge pull request #13 from caternuson/iss11

Fixes for SPI class

Author: ladyada

adafruit_lsm9ds1.py

@@ -406,8 +406,8 @@ class LSM9DS1_SPI(LSM9DS1):
     """Driver for the LSM9DS1 connect over SPI."""
     # pylint: disable=no-member
     def __init__(self, spi, xgcs, mcs):
-        self._mag_device = spi_device.I2CDevice(spi, mcs)
-        self._xg_device = spi_device.I2CDevice(spi, xgcs)
+        self._mag_device = spi_device.SPIDevice(spi, mcs, baudrate=200000, phase=1, polarity=1)
+        self._xg_device = spi_device.SPIDevice(spi, xgcs, baudrate=200000, phase=1, polarity=1)
         super().__init__()
 
     def _read_u8(self, sensor_type, address):
@@ -416,7 +416,6 @@ def _read_u8(self, sensor_type, address):
         else:
             device = self._xg_device
         with device as spi:
-            spi.configure(baudrate=200000, phase=0, polarity=0)
             self._BUFFER[0] = (address | 0x80) & 0xFF
             spi.write(self._BUFFER, end=1)
             spi.readinto(self._BUFFER, end=1)
@@ -428,7 +427,6 @@ def _read_bytes(self, sensor_type, address, count, buf):
         else:
             device = self._xg_device
         with device as spi:
-            spi.configure(baudrate=200000, phase=0, polarity=0)
             buf[0] = (address | 0x80) & 0xFF
             spi.write(buf, end=1)
             spi.readinto(buf, end=count)
@@ -439,7 +437,6 @@ def _write_u8(self, sensor_type, address, val):
         else:
             device = self._xg_device
         with device as spi:
-            spi.configure(baudrate=200000, phase=0, polarity=0)
             self._BUFFER[0] = (address & 0x7F) & 0xFF
             self._BUFFER[1] = val & 0xFF
             spi.write(self._BUFFER, end=2)

examples/lsm9ds1_simpletest.py

@@ -9,6 +9,17 @@
 i2c = busio.I2C(board.SCL, board.SDA)
 sensor = adafruit_lsm9ds1.LSM9DS1_I2C(i2c)
 
+#SPI connection:
+# from digitalio import DigitalInOut, Direction
+# spi = busio.SPI(board.SCK, board.MOSI, board.MISO)
+# csag = DigitalInOut(board.D5)
+# csag.direction = Direction.OUTPUT
+# csag.value = True
+# csm = DigitalInOut(board.D6)
+# csm.direction = Direction.OUTPUT
+# csm.value = True
+# sensor = adafruit_lsm9ds1.LSM9DS1_SPI(spi, csag, csm)
+
 # Main loop will read the acceleration, magnetometer, gyroscope, Temperature
 # values every second and print them out.
 while True: