tests/kernel/arm_runtime_nmi/src/main.c

/*
 * Copyright (c) 2016 Linaro Limited
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 /**
  * @brief Test to verify the behavior of CONFIG_RUNTIME_NMI at runtime.
  */

#include <zephyr.h>
#include <misc/printk.h>
#include <misc/reboot.h>
#include <arch/arm/cortex_m/cmsis.h>

#include <tc_util.h>

extern void _NmiHandlerSet(void (*pHandler)(void));

static void nmi_test_isr(void)
{
	printk("NMI received (test_handler_isr)! Rebooting...\n");
	/* ISR triggered correctly: test passed! */
	TC_END_RESULT(TC_PASS);
	TC_END_REPORT(TC_PASS);
}

void main(void)
{
	uint32_t i = 0;

	/* Configure the NMI isr */
	_NmiHandlerSet(nmi_test_isr);

	for (i = 0; i < 10; i++) {
		printk("Trigger NMI in 10s: %d s\n", i);
		k_sleep(1000);
	}

	/* Trigger NMI: Should fire immediately */
	SCB->ICSR |= SCB_ICSR_NMIPENDSET_Msk;
}