Data Types in PCWH

[bridger]

Greetings,

I'm having a simple but frustrating difficulty with the CCS PCWH compiler on the PIC18F8720. I'm simply trying to have a counter run up to 65535, then roll over and repeat. The code works fine under GNU C. I skimmed the manual and changed the unsigned int to int16, as shown below. But, for whatever reason, CCS treats the variable as an unsigned 8 bit integer, and only compiles if I use %X instead of %u. With %u, the printf generates an error. Code and error follow:

Code:

main() {
int16 i ;
printf("Count:") ;

while(1) {
for(i = 0 ; i <= 65535 ; i++)
printf(" %u", i) ;
}
}

Error from CCS:
Printf Format Type is invalid

I'm sure there's a glaring and quite obvious solution to all this, but I cannot see it. Can someone please help?

Thanks!
Bridger T. Wray

[Mark]

Try %lu instead.


Regards,
Mark

[miltiades]

Mark,

Thanks, %lu works well. I'm still a little frustrated with these compiler quirks and slight differences with ANSI C. I'm sure these will disappear with experience though.

Thanks again for the prompt response,
bridger

[Ttelmah]