AN 1776

Hi,
i am trying to implement This AN 1776 application notes Stereo Audio 
Transmission Over The CAN Bus Using The Motorola MPC 555 With TouCAN 
Module.
 in the toucan.c module the function set_ip;an assemberler 
instruction is requried to access the satatus register. i am using 
VISUAL-X tools complier.

when i am trying to compile this code

void set_ip (int ip)
{
switch (ip) {
case 0: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF0FF,SR" ); 
break;

case 1: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF1FF,SR" ); 
break;

case 2: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF2FF,SR" ); 
break;

case 3: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF3FF,SR" ); 
break;

case 4: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF4FF,SR" ); 
break;

case 5: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF5FF,SR" ); 
break;

case 6: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF6FF,SR" ); 
break;

case 7: default: asm(" ORI.W #0x0700,SR",
" ANDI.W #0xF7FF,SR" ); 
break;
}

the error is :argument of asm is not constant string,
then i try to write like this 

case 0: asm(" ORI.W #0x0700,SR");
        asm(" ANDI.W #0xF0FF,SR"); 
break;

then the error is unrecognized opcode ori.w ,andi.w

can some body help me  in this regard i am quit new this field of 
embeded systems.

i think my complier is not able to undersatnd  this code.

one more in toucan1.h defined  #define CAN_IARB2 /* TouCAN Interrupt 
arbitration, 1-15 if interrups enabled */

but its used in  in toucan .c like this

/* Enable TouCAN clocks and put into debug mode. Set user defined 
bits */
CANMCR = (FRZ%2 <<14) | BIT12 | (WAKEMSK%2 <<10) | (SUPV%2 <<7) | 
(SELFWAKE%2 <<6) | (APS%2 <<5) | (CAN_IARB%8)this not declared any 
where. may be my knowledege is not reaching up to this

so i request the group help in this regard¨


regards
shanthi





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