topic Re: MC9S12XDP512 interrupt problem in S12 / MagniV Microcontrollers

MC9S12XDP512 interrupt problem

patti — Mon, 03 Apr 2006 14:47:17 GMT

Hi, I am programming the HC12 and XGate processor! I have get the interrupt table to work for XGATE, but now I want to have a Periodic Interrupt just for the HC12 processor, how do I redirect Pit interrupt to HC12? Would bee nice with a C-code example!

Thanks In advance
Patrik

Re: MC9S12XDP512 interrupt problem

Steve — Mon, 03 Apr 2006 15:52:58 GMT

Patrik,

At reset the interrupts are initialised to point to the CPU so by default the interrupt will go the CPU. From the intial conditions the steps are:

add a vector into the CPU vector table

create an interrupt service routine

and enable interrupts.

The various approaches are discussed in a thread here: http://forums.freescale.com/freescale/board/message?board.id=16BITCOMM&message.id=111 and identify useful app notes that include code.

Re: MC9S12XDP512 interrupt problem

patti — Mon, 03 Apr 2006 18:19:08 GMT

Thanks a lot!

Now I got it working

Patrik