params range note
--led-row-addr-type
--led-slowdown-gpio 2 if flickering
--led-panel-type
--led-rows
--led-cols
--led-chain
--led-parallel
--led-show-refresh
--led-scan-mode 0 or 1
--led-pwm-bits
--led-pwm-lsb-nanoseconds

examples

~/rpi-rgb-led-matrix/examples-api-use/demo --led-panel-type=FM6126 --led-rows=64 --led-cols=128 --led-row-addr-type=5 --led-chain=1 --led-parallel=2 --led-show-refresh --led-scan-mode=0 --led-pwm-bits=7 --led-pwm-lsb-nanoseconds=50 -D0 --led-slowdown-gpio=2

Size: 128x128. Hardware gpio mapping: regular
Press <CTRL-C> to exit and reset LEDs
249.6Hz (lowest: 64.7Hz))

ref