Vector relocating problem with S12XDT256

mummel — Thu, 10 Feb 2011 22:06:19 GMT

I have a problem with the relocation of vector table with s12xdt. I have introduced a bootloader to a existing code and then I wanted to relocate my innterrupt vectors to be able to change these with the bootloader.

This is what I have done:

IVBR = 0xEE => Vectors is starting at 0xFFAE00'L

#pragma CONST_SEG __NEAR_SEG ISR_VECTORS

/* function pointers to interrupt service routines */

const _PFunc isrVector[] =

{

unusedIsr, /*119 Vsi */

unusedIsr, /*118 Reserved119 */

unusedIsr, /*117 Reserved118 */

......

timer0Isr, /*8 Vtimch0 */

unusedIsr, /*7 Vrti */

isrIrq, /*6 Virq */

isrXIrq, /*5 Vxirq */

unusedIsr, /*4 Vswi */

unusedIsr, /*3 Vtrap */

unusedIsr, /*2 Vcop */

unusedIsr /*1 Vclkmon */

};

in prm. file following is added:

VECTORS = READ_ONLY 0xEE00 TO 0xEFFF; // see Vectors.c

ISR_VECTORS INTO VECTORS;

ENTRIES

isrVector;

END

This code generates following s19:

S224FFAE004838004838004838004838004838004838004838004838004838004838004838AE

S224FFAE200048380048380048380048380048380048380048380048380048380048380048C6

S224FFAE403800483800483800483800483800483800483800483800483800483800483800B6

S224FFAE6048380048380048380048380048380048380048380048380048380048380048384E

S224FFAE80004838004838004838004838004838004838004838004838004838004838004866

S224FFAEA0380048380048380048380048380048380048380048380048380048380048380056

S224FFAEC04838004838004838004838004838004838004838004838004838004838004838EE

S224FFAEE000483800483800483800483800483800474B00477C0047970047980048380048F4

S224FFAF003800483800483800483800483800483800483800483800483800483800483800F5

S224FFAF20483800483800483800483800483800483800483800483800483000482700480AD4

S224FFAF400047F00047D40047C00047A40047990048380048470048480048380048380048E2

S209FFAF60380048380030

For some reason the compiler adds 0x00 between the addresses? but not on the first one?

Were are they coming from? I have checked the addresses that are written and they are ok, but when executing the code as soon as Enable Interrupts is set mcu escapes to 0x3800...

Have someone solved this problem or been in contact with this??? Am I doing something wrong???

Best regards

Micke

Re: Vector relocating problem with S12XDT256

CrasyCat — Thu, 10 Feb 2011 22:36:33 GMT

Hello

All interrupt function are supposed to be allocated in NON_BANKED memory.

So you need to define your vector table as an array of near function pointers.

typedef void (*near _PFunc)(void);

CrasyCat

Re: Vector relocating problem with S12XDT256

mummel — Thu, 10 Feb 2011 22:41:07 GMT

Thanks

S12 / MagniV MicrocontrollersのトピックRe: Vector relocating problem with S12XDT256

Vector relocating problem with S12XDT256

Re: Vector relocating problem with S12XDT256

Re: Vector relocating problem with S12XDT256