DM: working blinka example

Author: deanm1278

adafruit_epd/epd.py

@@ -90,11 +90,12 @@ def command(self, cmd, data=None, end=True):
 
         if data is not None:
             self.data(data)
+        else:
+            self.spi_device.unlock()
 
-        elif end:
+        if end:
             self._cs.value = True
-
-        self.spi_device.unlock()
+        
         return outbuf[0]
 
     def data(self, dat):

adafruit_epd/il0373.py

@@ -179,14 +179,15 @@ def image(self, image):
         # Grab all the pixels from the image, faster than getpixel.
         pix = image.load()
 
-        for y in xrange(image.size[1]):
-            for x in xrange(image.size[0]):
+        for y in iter(range(image.size[1])):
+            for x in iter(range(image.size[0])):
                 if x == 0:
                     x = 1
                 p = pix[x, y]
 
                 addr = int(((self.width - x) * self.height + y)/8)
-                if color == Adafruit_EPD.RED:
+
+                if p == (0xFF, 0, 0):
                     addr = addr + self.bw_bufsize
                 current = self.sram.read8(addr)
 

examples/epd_blinka.py

@@ -10,18 +10,23 @@
 
 # create the spi device and pins we will need
 spi = busio.SPI(board.SCK, MOSI=board.MOSI, MISO=board.MISO)
+while not spi.try_lock():
+    pass
+spi.configure(baudrate=16000000)
+spi.unlock()
+
 ecs = digitalio.DigitalInOut(board.D22)
 dc = digitalio.DigitalInOut(board.D13)
-srcs = digitalio.DigitalInOut(board.D8)
+srcs = digitalio.DigitalInOut(board.D6)
 rst = digitalio.DigitalInOut(board.D19)
 busy = digitalio.DigitalInOut(board.D26)
 
 # give them all to our driver
 display = Adafruit_IL0373(152, 152, rst, dc, busy, srcs, ecs, spi)
 # Create blank image for drawing.
 # Make sure to create image with mode '1' for 1-bit color.
-width = disp.width
-height = disp.height
+width = display.width
+height = display.height
 image = Image.new('RGB', (width, height))
 
 WHITE = (0xFF, 0xFF, 0xFF)