I would like to know how to change the NFC Shile Chip Select to be 7, for example, instead of the default 10? I want to use the NFC Shiled with the official ethernet shiled which uses at the same time pin 10 for the ethernet and 4 for the SD card make SPI communication.
I have tried to write 7 in defining the SS constant in the sketch but without any success. I also tried to hack the PN532.cpp and added in the begin function the following:
as recomended by arduino, so PIN 10 (the SS hardware designated PIN) keeps in output mode even if isn’t used but still without any success.
It only works in I define the SS constant as 10 in my sketch. I use Arduino UNO
Thank you and any help would be highly appreciated