Other Parts Discussed in Thread: DS90UB924-Q1
Hello,
•current situation: We have designed a PCBA with a serializer(ds90ub929-q1) , and it's connected to another board with a deserializer(ds90ub924-q1) by LVDS. In the PCBA, we have a MCU which connected to serializer by I2C, after power on, the serializer uses the internal default EDID data, the screen resolution is error(1280*720). In order to achieve the correct resolution display(1280*768), we write EDID data from MCU to seriaiizer, and can receive every byte of the ACK, but the screen resolution is same as when didn't write EDID data. So I think the EDID data is not effective.
•comment: The EDID data is verified, no problem.when write EDID data, the device address is 0x18, the register address is 0xA0. We can successfully modify the values of other registers in serializer.