Small fixes.

Author: tdicola

adafruit_tlc5947.py

@@ -122,14 +122,14 @@ def write(self):
             # Lock the SPI bus and configure it for the shift register.
             while not self._spi.try_lock():
                 pass
-            self._spi.configure(baudrate=30000000, polarity=0, phase=0)
+            self._spi.configure(baudrate=1000000, polarity=0, phase=0, bits=8)
             # First ensure latch is low.
-            self._latch = False
+            self._latch.value = False
             # Write out the bits.
-            self._spi.write(self._shift_reg)
+            self._spi.write(self._shift_reg, start=0, end=37)
             # Then toggle latch high and low to set the value.
-            self._latch = True
-            self._latch = False
+            self._latch.value = True
+            self._latch.value = False
         finally:
             # Ensure the SPI bus is unlocked.
             self._spi.unlock()

examples/simpletest.py

@@ -11,18 +11,19 @@
 # Define pins connected to the TLC5947
 SCK = board.SCK
 MOSI = board.MOSI
-LATCH = board.D5
+LATCH = digitalio.DigitalInOut(board.D5)
 
 # Initialize SPI bus.
-spi = busio.SPI(SCK=SCK, MOSI=MOSI)
+spi = busio.SPI(clock=SCK, MOSI=MOSI)
 
 # Initialize TLC5947
-tlc5947 = adafruit_tlc5947.TLC5947(spi, digitalio.DigitalInOut(LATCH))
+tlc5947 = adafruit_tlc5947.TLC5947(spi, LATCH)
 # You can optionally disable auto_write which allows you to control when
 # channel state is written to the chip.  Normally auto_write is true and
 # will automatically write out changes as soon as they happen to a channel, but
 # if you need more control or atomic updates of multiple channels then disable
 # and manually call write as shown below.
+#tlc5947 = adafruit_tlc5947.TLC5947(spi, LATCH, auto_write=False)
 
 # There are two ways to channel channel PWM values.  The first is by getting
 # a PWMOut object that acts like the built-in PWMOut and can be used anywhere