We have developped a board with a ADV7611.
The i2c addr is 0x98.
It seems that:
1.I can't write 0x98 0xFF 0x80 (to restart ADV7611).
No Ack after the data.
I confirm below points:
1.i2c_clk i2c_data pull up to 3.3V with 2.2k resister.
2.ADV7611 running from an external 28.6363 MHz clock
3.the pad underneath the ADV7611 has connection to GND
4.use 400kbps,100kbps,50kbps,10kbps,the errors are same.
5.the CPU can communication to other i2c device well.
It's so strange.
Can someone help me?