On 2012-04-02, at 6:30 AM, Matt Bennett wrote: > Are you sure about the 2 I2C links at 36KBytes/s? If you're running that > fast, you'll be getting an interrupt every 28uS for each I2C peripheral- > not a lot of cycles in between to do much else, and if you have to > bit-bang the I2C- I don't think you'll have have time for anything else. >=20 > Also, are these I2Cs master or slave? Bit-banging a slave is a lot more > timing sensitive. 38KBs/s is worst case. Both masters. Veronica --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .