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RGsB not working on STDI ch2

Question asked by jps3 on Jun 2, 2014
Latest reply on Jun 2, 2014 by GuenterL

hello,

 

I am trying to detect VGA_CONN1 & VGA_CONN2 independently. It works for RGBHV(separate syncs), but not for RGsB(sync on green). When I get the STDI interrupt for VGA_CONN2, its always for ch1. I need to detect it on STDI ch2.

 

I have tried different register settings in the AFE, IO, CP maps with regards to routing the syncs,etc but can not get this to work.

 

Note that VGA_CONN2 is connected into the recommended SCART VGA inputs. However, as you can tell, we are not doing SCART – just another RGB/VGA.

 

Can anyone help me with this?

 

Below is the schematic for the vga input signals to our 7850.

 

vga_schematic.jpg

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