Part Number: P82B715
Tool/software:
1.8V I2C
But in the absence of communication, the voltage of I2C is around 2.2V, and during communication, I2C will drop to around 1.8V
So the overall waveform presents a stepped shape
Under normal circumstances, it should be a stable voltage. What causes these steps?How to solve this problem?
The platform uses 1.8V I2C, so it's not easy to change to 3.3V temporarily
The schematic diagram is as follows
The application of chips is similar to this situation
There are two boards
Two boards are connected via I2C, with a wire length of 1.2M
A structure similar to this
