JTAG pinout
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Does anyone have the pinout for the JTAG connector on the Omega2s?
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@Ghent-The-Slicer , did you see the diagrams?
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@Luciano-S. The OP is talking about the two unsoldered header-strips on the underside of the Omega2. AFAIK Onion-devs have not released any information regarding those and they can't just be guessed, unfortunately. That said, if someone did find the pin-definitions for them, I'd add them to my diagram, too.
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I believe they (almost?) all double as GPIOs when not in JTAG mode, so a program that toggles the necessary lines one at a time and a logic probe (or a program that toggles them all at a series of power-of-two rates and a scope) would identify them.
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@Chris-Stratton Well, yeah, I just checked the PDF and it seems that all the JTAG-muxes are on the EPHY LED-pins, which should be perfectly safe to mess with from the OS without consequence. Those pads are way, way too small for me to go probing, though
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That's the subject :