23 lines
469 B
C
23 lines
469 B
C
#include "../syscall.h"
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#include <stdint.h>
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static uint32_t time_ms(void) { return (uint32_t)syscall(SYS_time_ms, 0); }
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static void wait_ms(uint32_t duration_ms) {
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uint32_t start = time_ms();
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while ((uint32_t)(time_ms() - start) < duration_ms) {
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syscall(SYS_halt, 0);
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}
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}
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int main(void) {
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syscall(SYS_set_beep, 10000);
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wait_ms(1000);
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syscall(SYS_set_beep, 15000);
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wait_ms(1000);
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// syscall(SYS_set_beep, 0);
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return 0;
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}
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