VOXL2 Mini J10 UART
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After flashing the latest system image for the VOXL2 Mini (with no subsequent modifications apart from wifi setup), I cannot get the J10 Uart RX (sending to the mini) working. TX (sending from the mini) works as expected. Is there some configuration / parameter that I am missing or any suggested way to debug this? I will try a new mini board in case there is a hardware issue. Thanks!
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Scoping the RX line, there is an 80mV p2p signal on the RX (to VOXL2 Mini) and a 3v3 on the TX.
Is there a pull-down configured for the RX pin or some other configuration that could explain this? Is it possible to change this during runtime or will it require rebuilding the system image?
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There's a directional level shifter on the RX pin, and it seems like our default state isn't what I have documented, and I need to investigate that!
As temporary work around, you can set the pin state with onboard utility:
voxl2-mini:/$ voxl-gpio -w 67 0For others, you can check loopback if you have it (between pins 4/5 of J10):
voxl2-mini:/$ qrb5165io-uart-test -d 0 [INFO]: success!Sorry for the confusion! We'll fix.
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@modaltb Thankyou so much for the quick eyes on this!
We owe you some beers!