1 // Interrupt table relocation test, based on the 'interrupt_in' test
2 // It will test an interrupt pin before and after the interrupt table is relocated
3 // Works only on LPC1768
6 #include "cmsis_nvic.h"
11 #define NUM_VECTORS (16+33)
13 DigitalOut out(PIN_OUT);
14 DigitalOut myled(LED1);
16 volatile int checks = 0;
17 uint32_t int_table[NUM_VECTORS] __attribute__ ((aligned(256)));
19 #define FALLING_EDGE_COUNT 5
22 for (int i = 0; i < FALLING_EDGE_COUNT; i++) {
35 static bool test_once() {
36 InterruptIn in(PIN_IN);
38 printf("Interrupt table location: 0x%08X\r\n", SCB->VTOR);
43 bool result = (checks == FALLING_EDGE_COUNT);
44 printf("Falling edge checks counted: %d ... [%s]\r\n", checks, result ? "OK" : "FAIL");
49 MBED_HOSTTEST_TIMEOUT(15);
50 MBED_HOSTTEST_SELECT(default_auto);
51 MBED_HOSTTEST_DESCRIPTION(Interrupt vector relocation);
52 MBED_HOSTTEST_START("MBED_A18");
54 // First test, no table reallocation
56 printf("Starting first test (interrupts not relocated).\r\n");
57 bool ret = test_once();
59 MBED_HOSTTEST_RESULT(false);
63 // Relocate interrupt table and test again
65 printf("Starting second test (interrupts relocated).\r\n");
66 memcpy(int_table, (void*)SCB->VTOR, sizeof(int_table));
67 SCB->VTOR = (uint32_t)int_table;
69 bool ret = test_once();
71 MBED_HOSTTEST_RESULT(false);
75 MBED_HOSTTEST_RESULT(true);