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| -rw-r--r-- | host/host.py | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/host/host.py b/host/host.py new file mode 100644 index 0000000..b19dc7a --- /dev/null +++ b/host/host.py @@ -0,0 +1,32 @@ +from pyusb import usb +import colorsys +import numpy as np + +CRATE_WIDTH = 5 +CRATE_HEIGHT = 4 +CRATES_X = 16 +CRATES_Y = 2 +DISPLAY_WIDTH = CRATES_X * CRATE_WIDTH +DISPLAY_HEIGHT = CRATES_Y * CRATE_HEIGHT +FRAME_SIZE = CRATE_WIDTH*CRATE_HEIGHT*3 + +dev = usb.core.find(idVendor=0x1cbe, idProduct=0x0003) + +def sendframe(framedata): + """ Send a frame to the display + + The argument contains a h * w array of 3-tuples of (r, g, b)-data + """ + def chunks(l, n): + for i in xrange(0, len(l), n): + yield l[i:i+n] + + for cx, cy in itertools.product(range(16), range(2)): + data = [ v for x in range(CRATE_WIDTH) for y in range(CRATE_HEIGHT) for v in framedata[cy*CRATE_HEIGHT + y][cx*CRATE_WIDTH + x] ] + if len(data) != FRAME_SIZE: + raise ValueError('Invalid frame data. Expected {} bytes, got {}.'.format(FRAME_SIZE, len(data))) + # Send framebuffer data + dev.write(0x01, bytes([0, x, y])+bytes(data)) + # Send latch command + dev.write(0x01, b'\x01') + |