how to enable interrupt for flexray in 5748g

[boyoungmun]

Hi,

I would like to enable interrupts for flexray using MPC5748g and XPC56XX EVB.

So I set the interrupt priority and core as below, but it is not working well.

Would you please check those values are correct or not?

INTC.PSR[462].B.PRC_SELN = 0x8;

INTC.PSR[462].B.PRIN =1;

INTC.PSR[461].B.PRC_SELN = 0x8;

INTC.PSR[461].B.PRIN =1;

INTC.PSR[402].B.PRC_SELN = 0x8;

INTC.PSR[460].B.PRIN =1;

INTC.PSR[459].B.PRC_SELN = 0x8;

INTC.PSR[459].B.PRIN =1;

INTC.PSR[458].B.PRC_SELN = 0x8;

INTC.PSR[458].B.PRIN =1;

INTC.PSR[457].B.PRC_SELN = 0x8;

INTC.PSR[457].B.PRIN =1;

INTC.PSR[456].B.PRC_SELN = 0x8;

INTC.PSR[456].B.PRIN =1;

INTC.PSR[455].B.PRC_SELN = 0x8;

INTC.PSR[455].B.PRIN =1;

Thanks,

Boyoung.

[ulfschlieben]

Hi,

does any body has an solution for that problem.

Is see the FAFAIF Bit in GIFER , but the service routine will not be called. 

[martin_kovar]

Hi Boyoung,

your code is correct. Interrupt requests are sent to z4a core.  Check, if you have set EE bit in MSR register.

Did you place the interrupt handlers at correct addresses? Do you see that interrupt flags are set correct?

Regards,

Martin

[ulfschlieben]

Hi Martin,

I was to dump to interpret the register correct.

So MSR = 0x9000 --> ee is enabled

When I start the sw first time I got one Interrupt from the FIFO --> good

Then I clear the FR_GIFER[FAFAIF] bit

But from know I didn't get any new FIFO Int

Any Idea what I'm missing

[ulfschlieben]

Hi,

INterrupt Handler Adress is correct an  I also see the flags cumming up correct in the felex ray registers.

But the MSR[EE] is not set....

[boyoungmun]

Hi Martin,

I added the interrupts handlers in IntcIsrVectorTable[], please see the below codes. 

(uint32_t) &FLEXRAY_ISR, /* Vector # 455 FlexRay_0_2 FNEAIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 456 FlexRay_0_3 FNEBIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 457 FlexRay_0_4 WUPIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 458 FlexRay_0_5 PRIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 459 FlexRay_0_6 CHIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 460 FlexRay_0_7 TBIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 461 FlexRay_0_8 RBIF */

(uint32_t) &FLEXRAY_ISR, /* Vector # 462 FlexRay_0_9 MIF */

And set the interrupts flags in Fr_GIFER register and Fr_PIER0 register.

But I couldn’t find the MSR register in S32DS so didn’t check the EE value was set to 1 or not.

Would you please let me know how to check and set EE bit in MSR register using S32DS?

Thanks,

Boyoung.

[martin_kovar]

Hi Boyoung,

implementation of register view is not so good in S32 Design Studio. Please look at the figure below.

There is not description of single bits in msr register. You have to open code reference manual for e200z4 and compare the value with MSR register description.

Have you enabled appropriate interrupts in FR_GIFER register?

Do you see that appropriate interrupt flags in FR_CIFR are set?

Regards,

Martin

[boyoungmun]

Whenever I try to set PRIE, FAFAIE, RBIE and TBIE to 1 in Fr_GIFER, error (“No source available for "main() at main_Z4_0.c:286 0x100af42") is returned.

Do I need to set the additional register or setting?

[martin_kovar]

Hi,

have you correctly placed interrupt handler routines in intc_SW_mode_isr_vectors_MPC5748G.c file?

Regards,

Martin