M5Fire, PAHUB & MLX90640

KINGSHEN

MLX90640 doesn't work with PAHUB via M5Fire portA!!!

The following source code works successfully when I connected MLX90640 directly to port A.

0_1575997264656_1575997261(1).jpg

Got a black screen while using the following code and a change of connection 'PORT A - PAHUB0 - MLX90640'

0_1575997206299_1575997180(1).png

I guess it could be a compatible issue between high clock 450kHz and PAHUB.
Any advices???

KINGSHEN

It must be high clock issue on PAHUB. I just tried to hide Wire.setClock(450000) and change the refreshrate of MLX90640 to 4Hz (0x03). It worked well. With PAHUB, it cannot work with high refreshrate (E.g. 8Hz or 16Hz)!!!