TWI pins need to map to 20,21

XMegaForArduino / arduino

required (and optional) source files for the Arduino development environment, specifically the hardware/arduino sub-directory, to support xmega processors

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TWI pins need to map to 20,21 #3

Closed bombasticbob closed 9 years ago

bombasticbob commented 9 years ago

MEGA2560 has SDA on digital pin 20 and SCL on digital pin 21. Whatever TWI interface is used for 'the default' needs to have its TWI pins mapped to 20 and 21 accordingly. This should be done for the xmega128A1 variant as well as any other variants that intend to be MEGA2560 compatible in their layout.

bombasticbob commented 9 years ago

Mike's layout should handle this. The default layout will also.