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#include "stm32_unict_lib.h"
#include <stdio.h>
#include <string.h>
int queue = 0;
int current_ticket = 0;
int average_s = 0;
int incr_s = -1;
int ms500 = 0;
int sum = 0;
int n = 0;
void
init()
{
DISPLAY_init();
GPIO_init(GPIOB);
GPIO_init(GPIOC);
GPIO_config_input(GPIOB, 10);
GPIO_config_EXTI(GPIOB, EXTI10);
EXTI_enable(EXTI10, FALLING_EDGE);
GPIO_config_input(GPIOB, 4);
GPIO_config_EXTI(GPIOB, EXTI4);
EXTI_enable(EXTI4, FALLING_EDGE);
GPIO_config_output(GPIOB, 0);
TIM_init(TIM3);
TIM_set(TIM3, 0);
TIM_config_timebase(TIM3, 8400, 5000);
TIM_config_IC(TIM3, 1, IC_FALLING_EDGE);
TIM_enable_irq(TIM3, IRQ_UPDATE | IRQ_CC_1);
TIM_on(TIM3);
CONSOLE_init();
}
int
main()
{
init();
char s[2];
for (;;) {
if (incr_s >= 0) {
if ((incr_s % 2) == 1) {
sprintf(s, "%02d", queue);
} else {
sprintf(s, " ");
}
} else {
sprintf(s, "%02d", current_ticket);
}
DISPLAY_puts(0, s);
sprintf(s, "%02d", average_s);
DISPLAY_puts(2, s);
}
return 0;
}
void
EXTI15_10_IRQHandler(void)
{
if (EXTI_isset(EXTI10)) {
queue++;
incr_s = 0;
GPIO_write(GPIOB, 0, 1);
TIM3->CNT = 0;
EXTI_clear(EXTI10);
}
}
void
EXTI4_IRQHandler(void)
{
if (EXTI_isset(EXTI4)) {
int seconds = ms500 / 2;
sum += seconds;
n++;
average_s = sum / n;
current_ticket++;
ms500 = 0;
EXTI_clear(EXTI4);
}
}
void
TIM3_IRQHandler(void)
{
char s[2];
if (TIM_update_check(TIM3)) {
ms500++;
if (incr_s >= 0) {
incr_s++;
if (incr_s == 4) {
incr_s = -1;
GPIO_write(GPIOB, 0, 0);
}
}
TIM_update_clear(TIM3);
}
}
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