Open CarlFK opened 4 years ago
No monitor plugged in
root@cnt4:~# i2cdetect 6
WARNING! This program can confuse your I2C bus, cause data loss and worse!
I will probe file /dev/i2c-6.
I will probe address range 0x03-0x77.
Continue? [Y/n]
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- 3a -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
there is a note in the README:
The example firmware makes the MCU on Video Booster Board accessible on I2C/EDID bus slave device under the address of 0x3a (7-bit notation).
so the 3a
you're seeing in your dumps should be the device
only monitor plugged in
With device plugged in
firmware seems to list address as: https://github.com/antmicro/video-signal-booster-board/blob/bf4c565313b7c16e25c0caa3de4203ac927c29c7/example-firmware/src/main.c#L90