Pickit 3 checksum F171; White program flashes now
Backward single group good; Backward 5, 10, 20, 50 groups good;
Backward group with nulls mostly works but there are nulls on both ends, and the backward null is calculated as group minus null; IE:
Backward, 10 group, 5 nulls: 5 nulls at both ends, but rest is OK. (10-5=5)
backward, 25 group, 10 nulls: null at back is 15, and 10 at front. (25-10=15)
backward, 50 group, 20 nulls: null at back is 30, and 20 at front. (50-20=30)
backward, 50 group, 5 nulls: null at back is 45 and 5 at front. (50-5=45)
As I type this I am not really sure if the null is supposed to be backward or not since I believe the function is a data repeater and data always comes from front near ssc but I originally expected backward nulls to be at rear/back...
Not sure if intentional but the larger the group the slower the program flash. Just something I notice.