Hi, I'm beginner for designing system with FPGA.
What I'm doing is get image data from PC(DVI) to ADV7611(RX, HDMI) and transmit YCbCr datas to ADV7511(TX).
Then, I would tranmit HDMI data to my monitor, which I want to display the image from PC.
I think I successfully get the HDMI data from PC to ADV7611.
But my monitor doesn't display any image.
I checked a few of registers of ADV7511 by I2C reading.
Then I found somethings that is strange.
Firstly, When I checked 0x15, 0x16 of ADV7511, the value of register was what I expected.
But, when I checked the registers regarding with HPD (0x41, 0x42, 0x96) , they have the value that I expected. But,
Their value changed continuously (value --> 8'h0x00 --> value --> 8'h0x00 ......) periodically.
Value of 0x42 changes 8'h0xF0 --> 0 --> 8'h0xF0 --> 0 .....
Value of 0x96 changes 8'h0xC0 --> 0 --> 8'h0xC0 --> 0......
I think this problem is related with why my monitor doesn't display any image.
What should I check more?
Could you give me some advice?