Quadrature Encoder Iinterface (QEI) od PIC

[dmta]

Hi all,

Does anyone have an application note or a sample code on how to configure and read speed/position from the QEI module in PIC 18FXX31????????

Regards

 

[Ian Rogers]

I wrote my own Quadrature encoder.. Is that the output from the encoder.

 

[dmta]

Hi Ian thank you for the reply !!!!!!!

The output from the encoder is 200 counts per rev with phase A, B and an Index pulse.

 

[Ian Rogers]

I don't use an Index signal.... Just the quad input.

The small pic is just a state machine to determine motion and direction.

 

[Mr RB]

Microchip have appnotes for the inbuilt quadrature encoder module. Check the Microchip page for the PIC "PIC 18FXX31" datasheet, down the bottom will be lots of PDFs including special appnotes.