Hi,Dan

Thanks to your answer. one more question, can you please confirm

"at the call level of the main loop(0)" means
SP!=STACK_START can only be used within the main loop, not sub-routines (function) which is called by main loop ? for example, not following case.


main()
{
while(1)
{
f1();
}
}

void f1()
{
if(SP!=STACK_START)
{
stack_error();
}
}

Thanks

Daniel