I'd appreciate a kick in the right direction because I can't get
function pointers to work:
I want to store pointers to functions (tasks) in an array and be able
to call the functions by indexing the array.
Here is main.c and my Makefile comments on anything you spot
gratefully received.
Jonathan
---------------MAIN.C------------------
#include "pic18fregs.h"
#include "main.h"
#pragma stack 0x60 <---------------not sure if this is right for
the pic18f248
typedef struct t_tasks {
void (*fp)(void);
} tasks;
void main(void) {
struct t_tasks mytasks[10];
mytasks[0].fp = ledoff;
mytasks[1].fp = ledon;
mytasks[2].fp = pause;
init();
while(1) {
ledon();
pause();
ledoff();
pause();
// mytasks[0].fp(); <--------- With this line commented led
flashes nicely
When uncommented gpsim
complains at movff r0x02, PCLATU
And the led does not even flash one time
Error is: "attempt read from
invalid file register"
}
}
void ledon(void) {
LED_STATUS = 0;
}
void ledoff(void) {
LED_STATUS = 1;
}
void pause(void) {
int i, j;
for (j = 0; j < 10; j++) {
for (i = 0; i < 10000; i++) {
}
}
}
----------MAKEFILE--------------
main.hex: main.o
gplink -w -r -o main.hex -m main.o -I /usr/share/sdcc/lib/pic16
pic18f248.lib libsdcc.lib crt0i.o
main.o: main.asm
gpasm -c -a inhx32 main.asm
main.asm: main.c main.h Makefile
sdcc -S main.c -mpic16 -p18f248
clean:
$(RM) *.asm *.cod *.lst *.hex *.p *.d *.lnk *~ *.o *.cof *.map
prog:
picp /dev/ttyS0 18f248 -ef -wp main.hex
sim:
gpsim -p18f248 main.cod
-------------------------------------------------------------------------
This SF.net email is sponsored by DB2 Express
Download DB2 Express C - the FREE version of DB2 express and take
control of your XML. No limits. Just data. Click to get it now.
http://sourceforge.net/powerbar/db2/
_______________________________________________
Sdcc-user mailing list
Sdcc-user@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/sdcc-user
