> 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.
>
> Now one of my clients needs to be able to change the string from time to
> time.  I have reservations about giving them the source,

Can you spare the i/o for an ext eeprom?
If they have a PICSTART as you say, do they have an EEPROM
programmer as well? you could tell them where to place the strings
in the ext EEPROM and burn their own... so the PIC will know
where to find them and use the ext EEPROM as the look up table.



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Lance Allen
Technical Officer
Uni of Auckland
Psych Dept
New Zealand

www.psych.auckland.ac.nz

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