mirror of https://github.com/ARMmbed/mbed-os.git
61 lines
1.3 KiB
C++
61 lines
1.3 KiB
C++
// Interrupt table relocation test, based on the 'interrupt_in' test
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// It will test an interrupt pin before and after the interrupt table is relocated
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// Works only on LPC1768
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#include "test_env.h"
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#include "cmsis_nvic.h"
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#include <string.h>
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#define PIN_IN (p5)
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#define PIN_OUT (p25)
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#define NUM_VECTORS (16+33)
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DigitalOut out(PIN_OUT);
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DigitalOut myled(LED1);
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static volatile int checks;
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static uint32_t int_table[NUM_VECTORS];
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void flipper() {
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for (int i = 0; i < 5; i++) {
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out = 1; wait(0.2);
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out = 0; wait(0.2);
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}
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}
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void in_handler() {
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checks++;
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myled = !myled;
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}
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static bool test_once() {
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InterruptIn in(PIN_IN);
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checks = 0;
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printf(" Interrupt table location: 0x%08X\r\n", SCB->VTOR);
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in.rise(NULL);
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in.fall(in_handler);
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flipper();
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in.fall(NULL);
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if (checks != 5) {
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printf(" Test failed.\r\n");
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return false;
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}
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printf(" Test passed.\r\n");
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return true;
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}
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int main() {
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printf("Starting first test (interrupts not relocated).\r\n");
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if (!test_once())
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notify_completion(false);
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// Relocate interrupt table and test again
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memcpy(int_table, (void*)SCB->VTOR, sizeof(int_table));
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SCB->VTOR = (uint32_t)int_table;
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printf("Starting second test (interrupts relocated).\r\n");
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notify_completion(test_once());
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}
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