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Error "More than one output is active on a wire causing a short circuit" #1305

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neineineinein opened this issue Jul 23, 2024 · 3 comments

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@neineineinein
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neineineinein commented Jul 23, 2024

VGA generator.zip

i am following these schematics

https://eater.net/vga

Fixed, the issue was that the QA's of the 74161 were connected together, thanks

@mengstr
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mengstr commented Jul 24, 2024

If you follow the wires that gets highlighted in red the the error occurs you'll see that the QA outputs on the top two 74161 are connected a bit down the schematic - in about the same height as the EEPROM. I'm quite sure that Ben didn't do it that way. ;).

After removing that short it seems like the simulation at least runs without errors....

@hneemann
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Once you have repaired the circuit, you must also load some image data into the EEPROM.
To do this, you have to assign a label to the 28c256 and assign data to this label in the circuit-specific settings.

@neineineinein
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Once you have repaired the circuit, you must also load some image data into the EEPROM. To do this, you have to assign a label to the 28c256 and assign data to this label in the circuit-specific settings.

i already have some image data in the eeprom, but, the Red, Green and Blue wires are grey instead of green so there is nothing there, the code i am using can be found on eater.net/VGA ("finch.bin")

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3 participants