Hello,
My customer is using DS90UB926. They have problem with I2C communication when trying to change the register. The problem is that they don`t detect the ACK from DS90UB926 after send address from Host.
Currently setting: 1. IDx pulled to ground with 10K resistors; 2. SDA and SCL are pulled up to 3.3V; 3. I2C baud rate: 70KHz
Customer has tried the address from 0 to 256 and all of them failed to generate an ACK on SDA. Anyone can suggest suggest possible cause and provide a detailed manual on I2C programming? Thanks!
