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LED v2 Probable issue


 Looking at the schematics for LED, Green and Red are connected to PORTA and Blue is connected to PORTB of MCP23017.

But in the code LiquidTWI2::setBacklight(), burstBits16 is being called which is sending to PORTA in two separate 8 bits.

Does it not just override the first write and Blue in PORTB is not even triggered?

Should it not be, writing only the first 8 bits to PORTA and the next 8 bits to PORTB.

Sorry if i don't understand it correctly, but could someone help me out.


1 Comment

The V2 LED hardware works just fine. Blue is triggered without issue.

Someone with more knowledge of LiquidTWI2 will have to explain the code.


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