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Author Topic: piCore 16.0 and Raspi Touchscreen.  (Read 241 times)

Offline Rich

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Re: piCore 16.0 and Raspi Touchscreen.
« Reply #15 on: February 10, 2026, 08:39:23 PM »
Hi MrPorcine
Quote from: MrPorcine on February 10, 2026, 08:09:47 PM
... I wonder if by specifing rpi-ft5406 separately in config.txt I got two instances that were quarrelling.
Whatever it was, it sounds like it caused the hardware to work very
hard and seriously increase its power consumption.
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Offline MrPorcine

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Re: piCore 16.0 and Raspi Touchscreen.
« Reply #16 on: February 10, 2026, 08:50:06 PM »
Rich,
Yes, thanks for the heads up. This is an embedded system where the Pi power is supplied via the GPIO pins. It's been working well for several years. Maybe only marginally working   :(. I don't think we've ever actually monitored the voltage drop across the GPIO pins.

So we've got some work to do. The test setup I've been using to solve this problem has a 40-wide flat cable that is probably twice as long as the one in the actual product. Hopefully this is the issue. TBD.
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