S12XDP512 Xgate problem

supriya — Thu, 29 Nov 2007 18:58:31 GMT

Hi,

I am using S12XDP512 with Code warrior 4.5.

I am using xgat. we can activate xgate by using the hardware inrterrupt but i want to activate it by using software interrupt. so, pls tell me is there any way to access xgate with s/w interrupt & how???

or is there any other way to access the xgate?

Pls help me about the same.

regards,

supriya

Re: S12XDP512 Xgate problem

kef — Thu, 29 Oct 2020 09:15:58 GMT

I wonder how could you have problems with software interrupt if CW project wizard creates code for this. Did you specify in the wizard that you want to use both cores? It should generate SetupXGATE function:

Code:

#define SOFTWARETRIGGER0_VEC  0x72 /* vector address= 2 * channel id */static void SetupXGATE(void) {  /* initialize the XGATE vector block and     set the XGVBR register to its start address */  XGVBR= (unsigned int)(void*__far)(XGATE_VectorTable - XGATE_VECTOR_OFFSET);  /* switch software trigger 0 interrupt to XGATE */  ROUTE_INTERRUPT(SOFTWARETRIGGER0_VEC, 0x81); /* RQST=1 and PRIO=1 */  /* enable XGATE mode and interrupts */  XGMCTL= 0xFBC1; /* XGE | XGFRZ | XGIE */  /* force execution of software trigger 0 handler */  XGSWT= 0x0101;}

XGSWT = 0x0101; is what makes XGATE executing software trigger 0 handler. Isn't it what you want?

topic Re: S12XDP512 Xgate problem in S12 / MagniV Microcontrollers

S12XDP512 Xgate problem

Re: S12XDP512 Xgate problem