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README.md: describe the debug uart

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Change-Id: I4cf929fded962e7ffb4c01628279385b2af04157
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Alexander Couzens
2026-07-09 16:08:39 +02:00
parent 7949165a4a
commit 01f36081fc
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README.md
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@@ -52,3 +52,11 @@ with USB pass-through for things with critical timing like SIMtrace2 is
calling for trouble** and we will not accept related bug reports or
support you if you do. If you still want to use VMs: Feel free to do
so, but understand that it's unsupported and you are on your own.
Debug UART
----------
The debug UART configuration is 921600 8N1, TTL 3.3V.
On the simtrace 2 use either a 2.5 mm stereo headphone connector (tip = TX, ring = RX, sleeve = GND)
or the nearby DEBUG port (pin 1 = GND, pin 4 = TX, pin 5 = RX).