I want to make NFC reader as an Android accessory.
I bought NFC Shield and Arduino Mega ADK.
Topping NFC Shield on Arduino Mega ADK is great.
When I download Android accessory sketch, it is working well.
When I read NFC tag, it is working well.
When I mix two sketches, I can see PN53x not found.
It seems to be that I need to control SPI well but I don’t know it well.
Or maybe there is initialization sequence for it.
Does anybody experience on this?