how can l set interrupt priority on s32ds

jinshuaixu — Fri, 21 Jul 2017 09:30:27 GMT

below is tow interrupt code ,if I want to set systick interrupt prioyity higher than wdog, who can tell me below code is right or wrong.?l an a new user ,firstly use S32K144 and S32DS.

please give me code or example code,thank you .

/* Install IRQ handlers for WDOG and SysTick interrupts */
INT_SYS_InstallHandler(WDOG_EWM_IRQn, WDOG_ISR, (isr_t *)0);
INT_SYS_InstallHandler(SysTick_IRQn, SysTick_Handler, (isr_t *)0);

INT_SYS_SetPriority(WDOG_EWM_IRQn,0);
INT_SYS_SetPriority(SysTick_IRQn,1);

Re: how can l set interrupt priority on s32ds

danielmartynek — Tue, 25 Jul 2017 21:13:39 GMT

Hi,

The lower priority number, the higher priority level.

So in your code, the WDOG interrupt has higher priority then SysTick.

The code should be:

void WDOG_IRQ_handler(void) {   
// do something
}

void SysTick_IRQ_Handler(void){   
// do something
}

INT_SYS_InstallHandler(WDOG_EWM_IRQn, WDOG_IRQ_handler, (isr_t *)0);
INT_SYS_InstallHandler(SysTick_IRQn, SysTick_IRQ_Handler, (isr_t *)0);

INT_SYS_SetPriority(WDOG_EWM_IRQn, 1);
INT_SYS_SetPriority(SysTick_IRQn, 0);

INT_SYS_EnableIRQ(WDOG_EWM_IRQn);
INT_SYS_EnableIRQ(SysTick_IRQn);‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

Regards,

Daniel

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how can l set interrupt priority on s32ds

Re: how can l set interrupt priority on s32ds