One thing that came to mind right off the bat is to ask
whether or not you have any RAM to spare?  The startup routine might
put the usual 5 characters in the RAM positions unless certain
switches were set a certain way and then it would find another table
to stuff in the same slots.    If the customer needs to select the
exact characters, then you will need an input routine that captures
five user-chosen characters and stuffs them in to the five slots.  You
shouldn't have to give any code away or worry about that.  The one big
drawback I can see to this is that the end user would have to
reprogram the table each time the power to the PIC goes off.


Martin McCormick WB5AGZ  Stillwater, OK
OSU Center for Computing and Information Services Data Communications Group

andy howard writes:
>I have a product using a 16F84 that outputs a 5 character RS232 string
>using retlw tables, the exact string depending on user input via one of
>several switches.