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      Looking at the chart with fresher eyes, it appears that RTS/CTS can be implemented without using XBAR : Teensy 4.0 Serial3, CTS Pin 19 Serial5, CTS Pin 35 Teensy 4.1 Serial3, CTS Pin 19 Serial5, CTS Pin 43 Serial8 CTS Pin 50 Am I reading this...
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      I'm sure this is a well-worn subject to some of you around here, but it's new to me. If I want to use RTS/CTS handshaking between two Teensy 4.1s, I need to invert the incoming CTS before it gets to the assigned pin? So it would seem, since...
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      Thanks for the reply. It was short ESD spikes that I was thinking of. If the spike gets swamped by the regulator filter, I suppose all would be well. I need to spend some time looking at industry literature that describes the typical ESD spike...
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      I found this thread while thinking about this very thing last night. Say I use BAT54-S packages across a batch of GPIOs, with the high side tied to the 3.3V rail of a Teensy 4.1 . Looking at the schematic, that probably isn't the best thing to...
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