Is this possible?

[Darrel Taylor]

I was thinking that at the beginning of the sequence you could put the length and the period just before the data. The entire sequence would have to be the same speed, but it saves a bunch of EEPROM.

ZigZag
                DATA    12, 100       ; length, speed
                DATA    Word %0000
                DATA    Word %0001
                DATA    Word %0010
                DATA    Word %0100
                DATA    Word %1000
                DATA    Word %0000
                DATA    Word %1000
                DATA    Word %0100
                DATA    Word %0010
                DATA    Word %0001
                DATA    Word %0000
                DATA    Word %0000

Then you do 12 loops with a PAUSE 100 in each loop.
May be more limiting than what you have though.

P.S. You can store the sequences in Flash memory instead of EEPROM, and you'll have a lot more room. (not much more with a 16F687 though)