OVMS3-idf/components/soc/test/test_mpu.c

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#include <stdio.h>
#include <stdbool.h>
#include "unity.h"
#include "esp_attr.h"
#include "hal/mpu_hal.h"
volatile static int RTC_NOINIT_ATTR access = 0;
static void trigger_illegal_access(void)
{
access = 0;
intptr_t addr = 0x60000000;
volatile int __attribute__((unused)) val = 0;
val = *((int*) addr);
++access;
TEST_ASSERT_EQUAL(1, access);
printf("Sucessfully accessed location %p\r\n", (void*)addr);
mpu_hal_set_region_access(3, MPU_REGION_ILLEGAL); // 0x60000000
++access;
val = *((int*) addr);
++access;
}
void check_access(void)
{
TEST_ASSERT_EQUAL(2, access);
}
TEST_CASE_MULTIPLE_STAGES("Can set illegal access regions", "[soc][mpu]",
trigger_illegal_access,
check_access);