supamas 2 Posted December 24, 2013 Share Posted December 24, 2013 @@supamas The TX and RX ISR functions are both included in the main.c file. The grace file is just a configuration for the hardware. It directs the IV to iic_RX_isr() and iic_TX_isr(). Can you be more specific with the error you are getting? I must have been doing something wrong because it is working for me now. The TX and RX interrupts were what I was looking for. You commented: // interrupt pragma is defined in grace If grace only sets up hardware, what is the interrupt handling that is defined in grace? (line 329 of the mian.c file) I appreciate you answering! This is great! I'm so excited to wrap my head around this stuff!! Quote Link to post Share on other sites
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