small schedduler for pic12c508

[gorkin]

Hi brothers! I need implement the following code in small PIC12C508.
I teste with sucessifull in others devices like PIC12F629 and PIC16F627, but when I compile for PIC12C508 the code not run correctly, anyone have any suggestion?
Thanks a lot and have a nice day or night! :wink:

#include <stdlib.h>
#include <stdio.h>

#define ON 0
#define OFF 1

#define maxtasks 3

#define uchar unsigned char

// Variáveis Globais
uchar tasks = 0;
// Array de tasks, terminador null
void(*x[maxtasks + 1])(void);
// ponteiro de função
typedef void(*fp)(void);
//protótipos
uchar FindTask (void(*fp)(void));
void CreateTask (void(*task)(void));
void DeleteTask (void(*fp)(void));
void task0 (void);
void task1 (void);
void task2 (void);
void task3 (void);
void task4 (void);
void task5 (void);

void CreateTask(void(*task)(void))
{
uchar n;

if(!FindTask(task))
{
for(n = 0x00; n < maxtasks || x[n] != NULL; n++)
{
if(x[n] == NULL)
{
x[n] = task;
x[++n] = NULL;
return;
}
}
}
}

void DeleteTask(void(*task)(void))
{
uchar n;

for(n = 0x00; n < maxtasks; n++)
{
if(x[n] == task)
{
do
{
x[n] = x[n + 0x01];
n++;
}
while(x[n] != NULL);
return;
}
}
}


uchar FindTask(void(*fp)(void))
{
uchar n;
uchar tmp;

for(n = 0x00; n < maxtasks || x[n] != NULL; n++)
{
if(x[n] == fp)
{
tmp = 0x01;
}
else
{
tmp = 0x00;
}
}
return(tmp);
}

void task0 (void)
{
#asm
NOP
NOP
NOP
NOP
NOP
#endasm
}

void task1 (void)
{
#asm
NOP
NOP
NOP
NOP
NOP
#endasm
}

void task2 (void)
{
#asm
NOP
NOP
NOP
NOP
NOP
#endasm
}

void task3 (void)
{
#asm
NOP
NOP
NOP
NOP
NOP
#endasm
}

void task4 (void)
{
}

void task5 (void)
{
}

void main (void)
{
uchar n = 0x00;

x[n] = NULL;
CreateTask(task0);
for(;
{
while(x[n] != NULL)
{
x[n++]();
}
n = 0x00;
}
}

 

[eltonjohn]

Are you shure that it your program fits in 512 btyes??

otherwise .are you correctlt programming the watchdog timer and reset bits ??

 

[gorkin]

Ok Elton, I simulate this code under MPLAB v6 and the C Compiler is Hitech...
When I compile this code, I report the memory map file, In ROM I use 55% and RAM 80%...
Strange...very strange no?

Thanks my brother!
Gorkin