[Icc-mot] 9S08 Interrupt mask.

[Richard]

Modify the Startup file. Call it crt09aw60 or something so it is clear that 
it is doing something AW60 specific. That ought to make your client happy.

At 08:30 AM 5/1/2007, Bob Smith wrote:
>A couple lf weeks ago, I mentioned that I couldn't get the RTI on my
>9S08AW60 to throw interrupts as expected.
>
>Well  the problem is now worse as I can't get the SCIx to throw
>interrupts either.
>
>Further, according to my debugger (NoIce08) the interrupt mask bit in
>the CCR is set at the entrance to main() and at all other times in my
>program.  Well after a bit of arm-chair digging in the AW60 Data Sheet
>this A.M. it seems that the AW60 comes out of reset with the I bit in
>the CCR set, thus masking all interrupts.  This is, they claim, to allow
>me time to set up the stack pointer, et al.  OK, I can live with that
>but, I have a fussy client who insists that everything be done in C so I
>am not happy with the idea of sticking an "asm("CLI") in main() or my
>HC08Setup routine.  Of course I could modify the library cstart routine
>and hide a CLI in there.
>
>Anybody got any better ideas;  how do _you_ deal with this problem??
>
>All suggestions welcome.
>
>Many thanks, Bob Smith

// richard (This email is for mailing lists. To reach me directly, please 
use richard at imagecraft.com)