Hey Freescale community,
I'm using the FRDM K20D50M board along with the Adafruit Motor Shield V2 (an Arduino shield). The shield requires that I send commands using I2C, where SCL is on PTB2 and SDA is on PTB3. After a long time searching through the schematic for the FRDM board, it looks like the board's I2C hardware can go through an alternate channel to reach those pins also, however, I am banging my head against the wall trying to find some sort of documentation about how to set up I2C for alternate channels. I am using Keil MDK-ARM which doesn't have any I2C driver for this board.
Any explanation or links to other posts, documentation, or code would be greatly appreciated.