MPyATE_Firmware/src/app_periodic_tasks.c

/* Board */
#include "clock_config.h"

/* SDK drivers */
#include "fsl_mrt.h"

/* App */
#include "app_gpio.h"
#include "app_periodic_tasks.h"

#define APP_PERIODIC_RATE 1000

void app_periodic_tasks_init(void) {
    CLOCK_EnableClock(kCLOCK_Mrt);

    mrt_config_t mrt_cfg = {
        .enableMultiTask = false,
    };

    MRT_Init(MRT0, &mrt_cfg);
    MRT_SetupChannelMode(MRT0, kMRT_Channel_0, kMRT_RepeatMode);
    MRT_EnableInterrupts(MRT0, kMRT_Channel_0, kMRT_TimerInterruptEnable);

    EnableIRQ(MRT0_IRQn);
    NVIC_SetPriority(MRT0_IRQn, 2);

    MRT_StartTimer(MRT0, kMRT_Channel_0, (CLOCK_GetCoreSysClkFreq() / APP_PERIODIC_RATE));
}

static void app_periodic_task(void) {
    app_gpio_update();
}

void MRT0_IRQHandler(void) {
    app_periodic_task();

    MRT_ClearStatusFlags(MRT0, kMRT_Channel_0, kMRT_TimerInterruptFlag);
}