4571fb219f
Previously, the test uses region 3 for the illegal access test (0x60000000 - 0x7fffffff). This caused issues with there being peripherals located in that memory range. Change to use region 4 (0x8000000 - 0x9fffffff) instead).
43 lines
1.1 KiB
C
43 lines
1.1 KiB
C
#include <stdio.h>
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#include <stdbool.h>
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#include "unity.h"
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#include "esp_attr.h"
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#include "hal/mpu_hal.h"
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volatile static int RTC_NOINIT_ATTR access = 0;
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static void trigger_illegal_access(void)
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{
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access = 0;
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intptr_t addr = 0x80000000; // MPU region 4
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volatile int __attribute__((unused)) val = 0;
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// Marked as an illegal access region at startup in ESP32, ESP32S2.
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// Make accessible temporarily.
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mpu_hal_set_region_access(4, MPU_REGION_RW);
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val = *((int*) addr);
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++access;
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TEST_ASSERT_EQUAL(1, access);
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printf("Sucessfully accessed location %p\r\n", (void*)addr);
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// Make access to region illegal again.
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mpu_hal_set_region_access(4, MPU_REGION_ILLEGAL);
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++access;
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// Since access to region is illegal, this should fail (causing a reset), and the increment
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// to access count is not performed.
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val = *((int*) addr);
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++access;
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}
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void check_access(void)
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{
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TEST_ASSERT_EQUAL(2, access);
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}
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TEST_CASE_MULTIPLE_STAGES("Can set illegal access regions", "[soc][mpu]",
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trigger_illegal_access,
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check_access); |