component enc_idx_div "Encoder index divider";

pin in s32 encoder_count_in "count input from the encoder";
pin io bit encoder_index_enable "index-enable from the encoder";
pin io bit index_enable "simulated index-enable";

param rw s32 trigger_count "encoder count trigger point to start looking for an index";
param rw s32 counts_per_rev "encoder counts per revolution";

variable bool waiting_for_index_trigger=0;

function _ "Does the work";
license "GPL";
;;


FUNCTION(_) {
    if ( !index_enable ) {
    	waiting_for_index_trigger = 0;
	encoder_index_enable = 0;
    } else {
    	if ( !waiting_for_index_trigger ) {
	    int n = encoder_count_in % counts_per_rev;
	    if ( abs(n) > trigger_count ) {
		encoder_index_enable = 1;
		waiting_for_index_trigger = 1;
	    }
	} else {
	    if ( !encoder_index_enable ) {
	    	index_enable = 0;
		waiting_for_index_trigger = 0;
	    }
	}

    }
}