RE : Re: HCS12 with 3 SCI Ports?

Hi,
 
The vector table contains function addresses, so to implement an interrupt
function, you have to create it somewhere with the @interrupt prefix, and
you have to replace the matching entry in the vector table by the function
name, not forgetting to declare it as an extern @interrupt function if it is
not written in the same source file.
 
Regards,
Jean-Pierre Lavandier
 

-----Message d'origine-----
De : 68HC12@... [mailto:68HC12@...] De la part de
stefan.ming
Envoyé : lundi 27 juillet 2009 14:55
À : 68HC12@...
Objet : [68HC12] Re: HCS12 with 3 SCI Ports?


 

Hello everybody,

it's my first time to use COSMIC to program MC9S12XDP512. I got along well
with it. However, i'm a little bit confused on how to write my interrupt.

you see, there're only defined function pointers without any explicit
indication as follows:

@interrupt @near void (* const _vectab[])(void) = {
dummit, /* 0xFF10 Surious Interrupt */
dummit, dummit, dummit, dummit, dummit, dummit, dummit,
dummit, dummit, dummit, dummit, dummit, dummit, dummit, dummit,
dummit, dummit, dummit, dummit, dummit, dummit, dummit, dummit,
dummit, dummit, dummit, dummit, dummit, dummit, dummit, dummit,
dummit, dummit, dummit, dummit, dummit, dummit, dummit, dummit,
dummit, /* 0xFF60 XRAM access violation */
dummit, /* 0xFF62 XGATE software error */
dummit, /* 0xFF64 XGATE software trigger 7 */
dummit, /* 0xFF66 XGATE software trigger 6 */
dummit, /* 0xFF68 XGATE software trigger 5 */
dummit, /* 0xFF6a XGATE software trigger 4 */
dummit, /* 0xFF6c XGATE software trigger 3 */
dummit, /* 0xFF6e XGATE software trigger 2 */
dummit, /* 0xFF70 XGATE software trigg
}

I'm really confused by such definitions. they are truelly different from
AVR.

Who can interprete it clearly to me? Thank you very much in advance!







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