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rgbmatrix.RGBMatrix with bit_depth=0 puts board in to bad state #3650

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aocole opened this issue Nov 6, 2020 · 0 comments · Fixed by #3661
Closed

rgbmatrix.RGBMatrix with bit_depth=0 puts board in to bad state #3650

aocole opened this issue Nov 6, 2020 · 0 comments · Fixed by #3661
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@jepler
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bug crash displayio
Milestone
6.0.0

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@aocole
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aocole commented Nov 6, 2020

With the below code on the CIRCUITPY drive, you can put the board in to a bad state where the disk won't mount and the tty device doesn't show up, even with the board unplugged from the matrix. Tested with adafruit-circuitpython-matrixportal_m4-en_US-6.0.0-rc.1.uf2

import board
import displayio
import framebufferio
import rgbmatrix

displayio.release_displays()

matrix = rgbmatrix.RGBMatrix(
    width=64, bit_depth=0,
    rgb_pins=[
        board.MTX_R1,
        board.MTX_G1,
        board.MTX_B1,
        board.MTX_R2,
        board.MTX_G2,
        board.MTX_B2
    ],
    addr_pins=[
        board.MTX_ADDRA,
        board.MTX_ADDRB,
        board.MTX_ADDRC,
        board.MTX_ADDRD
    ],
    clock_pin=board.MTX_CLK,
    latch_pin=board.MTX_LAT,
    output_enable_pin=board.MTX_OE
)
display = framebufferio.FramebufferDisplay(matrix, auto_refresh=True)
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@jepler jepler

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bug crash displayio
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6.0.0
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RGBMatrix: Detect invalid bit_depth selection jepler/circuitpython
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@tannewt @aocole @jepler