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HDMI Splitter by FPGA (HDMI Designer Pls Take A LOOK)

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Ansonng

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fpga hdmi

I am now trying to make a HDMI 1-8 splitter with a Xilinx Spartan 3A. This FPGA supports TMDS I/O standard. I think it is no problem to split TMDS Channel and Clock signals. However, I am getting puzzled to split other control signal listed below.

1. CEC - It is a bidirectional signal. Can I just directly connect the 1 source and 8 sink devices together? Should I need to consider the driving problems?

2. DDC - It is a kind of I2C signal. Can I just connect all the devices together without any signal enhancement? Should I need to consider the driving problems?

3. Hot Plug Detect - Should I just weakly pull down this pin? I guess it will be high if any one HDMI sink is connected. Am I right?

Thank you very very very much for any comment!!

Anson
 

hdmi fpga

1- I am not sure
2- yes, it is I2C, you can connect them tohether, but I2C is bi-directional
3- you or 8 8 signals
 

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