Encoder function calls reporting inf

[Radical Pi]

Originally Posted by trilogy2826

GetRate(): Reports 0(zero) no matter the speed of the encoder physically turning

GetPeriod(): Reports inf no matter the speed of the encoder physically turning. This is odd because this function is necessary for GetDistance() to work according to the encoder.c file

Slightly backwards here. GetRate() is the one that requires GetPeriod() to work.

Somewhat hard to debug here, since almost all of the implementation for encoders is in the FPGA, and I haven't seen this before. Still, my hunch is that one of the two encoder lines is not connected/assigned properly. GetDistance() probably works because it is counting off the one good line, but since the other line never fires, a full period is never seen. GetPeriod() returns inf whenever the period is over a certain threshold (side note - if anyone knows what that default threshold is, please tell me. I can't find it in any of the comments).

Also, if that is the problem, most likely when you fix it your distances will double.