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Fix/gen3 spi ss pin occupied #1696

merged 2 commits into from Mar 6, 2019


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commented Feb 18, 2019


Pin A5 stays high when using Ethernet feather wing on Xenon.



Ethernet driver wants to control the SPI SS pin itself, it passes 0xffff to SPI driver, but 0xffff means SPI_DEFAULT_SS, here we use PIN_INVALID(0xff).

Steps to Test

  1. Connect a LED to A5 pin
  2. Flash the example app
  3. Regular blink should be observed

Example App

void setup() {
    pinMode(A5, OUTPUT);

void loop() {
    digitalWrite(A5, HIGH);
    digitalWrite(A5, LOW);



  • User is totes amazing for contributing!
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  • Problem and Solution clearly stated
  • Run unit/integration/application tests on device
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  • Added to after merging (add links to docs and issues)

  • [Mesh] Fixes A5 staying high when using Ethernet feather wing #1696

@YutingYou YutingYou requested a review from avtolstoy Feb 18, 2019

@YutingYou YutingYou force-pushed the fix/gen3-spi-ss-pin-occupied branch from ccef586 to 9a792a4 Mar 5, 2019

@avtolstoy avtolstoy changed the base branch from mesh-develop to develop Mar 5, 2019

@avtolstoy avtolstoy force-pushed the fix/gen3-spi-ss-pin-occupied branch from 9a792a4 to 95038d2 Mar 6, 2019

@avtolstoy avtolstoy merged commit 29f63f7 into develop Mar 6, 2019

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@avtolstoy avtolstoy deleted the fix/gen3-spi-ss-pin-occupied branch Mar 6, 2019

@technobly technobly added this to the 1.0.2-rc.1 milestone Mar 6, 2019

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