Offloading intterupts to a counter

[Max Lobovsky]

I just spent some time looking at data sheet on the 18fxx20 chip that the RC uses. There are 5 counters that i think i can use (as long as their inputs are in fact one of the digital inputs, i think im gonna need to ask IFI about this) there are 3 that can be used as 16 bit and 2 that can only go up to 8 bit. Because i don't see anyway of counting down, the only option is two have two counter's per wheel and use an encoder enterpreter chip that can output two streams, one for up clicks and one for down clicks. This means that at best, i can have one encoder on two 16 bit counters, one on two 8 bit counters, and the other two on interrupts. I think this maybe pointless anyway because the interrupt digital I/O pins and the counter pins are most likely the same (again, i have to ask IFI).