Hi George,
> i was not able to generate the hex code i compile the program using
> the command sdcc -mpic14 -p16f84a -c example.c.but i have n't get the
> hex code.
Does this really surprise you?
The help text for the -c flag reads
-c --compile-only Compile and assemble, but do not link
^!!!!!!!!!^
The .hex file is the result of linking your project's object files with
the sdcc (and maybe other) libraries, so not linking will only produce
'example.o' but not 'example.hex'.
> plz tell me how i can get the hex code
The sample code I provided does intentionally not have a main()
function, nor does the code make anything useful besides demonstrating
IO port access. Thus to obtain a hex file you would need to add a main()
function with useful functionality either in example.c or in another
source.c, compile both with
sdcc -mpic14 -p16f84a -c example.c
sdcc -mpic14 -p16f84a -c source.c
and then link them together (and with the libraries) using
gplink example.o source.o libsdcc.lib pic16f84a.lib
(alternatively, you should be able to use the slightly simpler sequence
sdcc -mpic14 -p16f84a -c example.c
sdcc -mpic14 -p16f84a source.c example.o
BUT make sure to specify the source file containing main() in the last
call and compile ALL other project source files with the -c option!)
Good luck,
Raphael
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