> Bitbanging like this is fine for synchronous protocols Yes, it might be (easier if the timings are more flexible), but a naive sleep (that might be trying to

> Bitbanging like this is fine for synchronous protocols Yes, it might be (easier if the timings are more flexible), but a naive sleep (that might be trying to use an internal timer) will throw you off That's exactly my point, they would need assembler for that (or at least "predictable" C instructions)