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Add Optional RX/TX probing terminal with current limiting resistor + make signal voltage selectable #4

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coon42 opened this issue Dec 15, 2020 · 0 comments
Open

Add Optional RX/TX probing terminal with current limiting resistor + make signal voltage selectable #4

coon42 opened this issue Dec 15, 2020 · 0 comments

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@coon42
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coon42 commented Dec 15, 2020

To probe RX/TX pins on new camera models some "protected pins" could be added to one of the UART RX/TX pins. One candidate could be the JTAG connector.

The signalling voltage of that pins could be selectable between 1.8V and 3.3V and could also get a current limiting resistor of 4k7 to avoid of frying something by connecting the probe TX pin and a camera TX pin.
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