64x64 Outdoor Scan 1/16 - multiplexing without E-channel

1

We have a 64x64 panel on an SM16208 chip without E-channel
I tried all possible modes, the best results were achieved with these settings

sudo examples-api-use/demo --led-rows=32 --led-cols=128 -D 0 --led-gpio-mapping=adafruit-hat --led-slowdown-gpio=2 --led-multiplexing=0
Screenshot_2

Please help me figure it out, I’ve already tried all possible settings options

If the output is on every 16th line, we get 4 lines of length 64 each. Then output to 2 registers at the same time (RGB and R1G1B1) we get two lines for each register of length 128. The description of the project is meager, there is no table of flag dependencies. Of course, for those who have worked with these panels, the terminology will be clear. In this version, the output is correct (the shift registers are filled correctly), but the division of data into lines is incorrect. But it’s not clear why it compresses the image, because all matrices have the same density both horizontally and vertically. And the triangles must be rectangular - which means the library mathematics is not working correctly.

2

1 pixel - ON

options = RGBMatrixOptions()
options.rows = 64
options.cols = 64
options.chain_length = 1
options.parallel = 1
options.hardware_mapping = ‘adafruit-hat’
options.scan_mode = 0
options.pwm_bits = 11
options.brightness = 75
options.multiplexing = 0
options.gpio_slowdown = 4

Screenshot_3