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HDMI spiral demo doesn't work via HDMI switch [solved, 5V needed] — Parallax Forums

HDMI spiral demo doesn't work via HDMI switch [solved, 5V needed]

pik33pik33 Posts: 2,350
edited 2021-02-09 19:24 in Propeller 2

I used non overclocked, non modified 640x480 version.

If HDMI cable is connected to the monitor, I can see a spiral

If the cable is connected to 5-port HDMI switch, it cannot detect and transmit any signal from P2

Edit: maybe a 5V line must be connected to the HDMI socket to make this work?

Comments

  • RaymanRayman Posts: 13,861

    yes, probably the 5V line.

  • pik33pik33 Posts: 2,350

    This solved the problem.

  • TubularTubular Posts: 4,621

    Pesky 5v signal strikes again. Yeah they really need to add that to the accessory board, or include a 1k resistor in the pack and some instructions for where to solder it

  • pik33pik33 Posts: 2,350

    I soldered a pair of goldpins there so I can attach a jumper when needed. This switch uses 5V to detect the active port and switches to it even when there is no signal.

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