Teensy4.1 + OctoWS2811 Adaptor and use of pin 15 and 16

R

RubiCube

Member
Hello,

I am using a Teensy 4.1 with the OctoWS2811 adaptor board. The software I am running uses all the serial interfaces of the Teensy 4.1.
I have experienced some issues with incoming serial data on RX3 (pin 15) and RX4 (pin 16) and realized when looking at the schematics of the OctoWS2811 adaptor board that pin 15 and pin 16 seems to be connected.

I think I can solve it by using any of the available XBAR pins but I am a little but curious to why those pins are connected together on the OctoWS2811 Adaptor board. Does anyone know why?
 
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However, it appears they are not connected when measuring on the physcial OctoWS2811 adaptor board.
It might be something I have missed here. Maybe I have interpreted the schematics incorrectly...
 
Sorry, it's old info. Very early versions of OctoWS2811 needed those 2 pins shorted together. That requirement was removed long ago. Also long ago, the PCB was updated to not short those pins. But it seems the web page still has the oldest schematic.
 
PaulStoffregen said:
Sorry, it's old info. Very early versions of OctoWS2811 needed those 2 pins shorted together. That requirement was removed long ago. Also long ago, the PCB was updated to not short those pins. But it seems the web page still has the oldest schematic.
Click to expand...
Thanks Paul. I understand.
Anyhow, my problem is now solved.
 
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