DPI screen color cycling on startup issue [SOLVED]
Posted: Sun Mar 10, 2019 4:25 pm
The Problem:
Just ordered in a batch of Mattc's dpi adapter boards and soldered
on the components, but im having an issue where the screen turns
on but cycles through red, green, blue, white and black, and doesnt
boot into retropie. just gets stuck on this color cycling screen.
Here is the Mattc 18bit DPI board assembly:
If anyone has seen this or knows how to correct this behavior, let me know!
The Solution:
When I went back through probing with my multimeter i saw a short between
the GND and Data Enable pins that goto the FPC connector. When soldering
these very small pitched connectors, it is easy to cause a solder bridge that
causes a short.
The screen color cycles because it is not receiving a signal. Hope this can
help anyone that was in my place.
Just ordered in a batch of Mattc's dpi adapter boards and soldered
on the components, but im having an issue where the screen turns
on but cycles through red, green, blue, white and black, and doesnt
boot into retropie. just gets stuck on this color cycling screen.
Here is the Mattc 18bit DPI board assembly:
If anyone has seen this or knows how to correct this behavior, let me know!
The Solution:
When I went back through probing with my multimeter i saw a short between
the GND and Data Enable pins that goto the FPC connector. When soldering
these very small pitched connectors, it is easy to cause a solder bridge that
causes a short.
The screen color cycles because it is not receiving a signal. Hope this can
help anyone that was in my place.