posted December 01, 2000 15:49            

Are you using the freeware libraries? If so, you can't signal from an ISR because the freeware libraries were compiled with the OSCALL_XYZ configuration options set to OSFROM_MAINLINE_ONLY.

In the full version, this is how you do it: You set OSCALL_OSSIGNALBINSEM to OSFROM_ISR_ONLY, and recompile. This removes the interrupt disabling and enabling from OSSignalBinSem(), which then allows you to call it without it re-enabling interrupts and therefore causing nested interrupts, which you don't want.

posted December 01, 2000 10:59            

void main (void)
{
PR2 = TMR2_RELOAD;
T2CON = 0x4D;

OSInit();

TMR2IE = 1;
PEIE = 1;
OSEnableInts();

CreateBinSem (0, 0);

for ( ; ; ) OSSched ();
}

#pragma interrupt_level 0
void interrupt IntVector (void)
{
if (TMR2IE && TMR2IF)
{
TMR2IF = 0;

OSSignalBinSem (0);
}
}

[This message has been edited by NoMore (edited December 01, 2000).]