Herbert Graf wrote: > Along with a CS for each device, making SPI VERY painful if you want to > use several devices. That said it is "simpler" due to the normally > single direction signals. TTYL And it's especially a lot simpler to implement in hardware. That's probably the reason why SPI chips usually are cheaper than I2C, at least where the additional I2C logic is not negligible compared to the chip complexity. Gerhard -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist