and another thing, when we tried speed up the bus to 1Mhz, we were surprised!
because we have a guest on our communication! look up at the picture
the second part shown in red is our request, it communicates with 1 Mhz but the first part shown in the purple is guest part and communicates with a different speed
![:confused: :confused:](https://forums.quectel.com/images/emoji/twitter/confused.png?v=12)
why do we have this part?