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ADV7619 IIC read and write no ACK

Question asked by q728117579 on Jun 15, 2016
Latest reply on Jun 15, 2016 by GuenterL

i want to read a certain ADV7619's register of 0x03,but no IIC ACK .

CS keep low;

ALSB keep low;

main IIC Address is 0x98 ;

The IIC read and write device is  FPGA ,written by Verilog HDL. It is test by read and write a 24c02,and works well.

i don't know why it can't get ADV7619's iic ACK ! ?

hope to get response,thank you