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56 lines
1.4 KiB
C
56 lines
1.4 KiB
C
#include <stdint.h> // C99 standard integers
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#include "bsp.h"
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#if 0
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/* background code: sequential with blocking version */
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int main(void) {
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BSP_init();
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while (1) {
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BSP_ledGreenOn();
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BSP_delay(BSP_TICKS_PER_SEC / 4U);
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BSP_ledGreenOff();
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BSP_delay(BSP_TICKS_PER_SEC * 3U / 4U);
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}
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//return 0;
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}
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#endif
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/* background code: non-blocking version */
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int main(void) {
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BSP_init();
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while (1) {
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/* Blinky polling state machine */
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static enum {
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INITIAL,
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OFF_STATE,
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ON_STATE
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} state = INITIAL;
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static uint32_t start;
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switch (state) {
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case INITIAL:
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start = BSP_tickCtr();
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state = OFF_STATE; /* initial transition */
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break;
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case OFF_STATE:
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if ((BSP_tickCtr() - start) > BSP_TICKS_PER_SEC * 3U / 4U) {
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BSP_ledGreenOn();
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start = BSP_tickCtr();
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state = ON_STATE; /* state transition */
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}
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break;
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case ON_STATE:
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if ((BSP_tickCtr() - start) > BSP_TICKS_PER_SEC / 4U) {
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BSP_ledGreenOff();
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start = BSP_tickCtr();
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state = OFF_STATE; /* state transition */
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}
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break;
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default:
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//error();
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break;
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}
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}
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//return 0;
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}
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