Hi,
I used TI ISO1644 but found a issue when testing them.
The figure below shows the schematic for ISO1644.
The left side is connected to the MCU and the right side is connected to the sensor.
I2C frequency: 400kHz.
This is the measured I2C_CLK waveform, which is very nice.
This is a measurement of the I2C_SDA waveform. Some of the signals in the waveform don't reach full 0V.
Although this has no effect on ST MCU, if we use the different brand of MCU, it will cause data readings to be abnormal.
Please help me with this issue.
Thanks.