Quote:
Originally Posted by nuttle
BTW, I think you could connect up to 8 of the encoder chips I mentioned over SPI, using something like a 74LS138 (and even more using a similar scheme with more/different parts to select which chip to enable). |
That sounds like a lot of work. It also sounds like a central interface for a bunch of encoders, rather than individual encoders. Nothing wrong with that, but that would be a bit more specialized than our plain encoders.
We kind of ignore SPI existing on the digital sidecar, as we've never got it to work correctly. This contrasts with our experience with I2C, which just works. Perhaps it is the programming environment and libraries that we use (LabView), or perhaps the implementation of SPI on the accelerometer. Sometimes should work and does work aren't in the same ballpark.