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#include "stm32_unict_lib.h"
#include <stdio.h>
#define SECS_3 3000
#define X_VAL 11400
/*
* RA3 = PB10
* RA2 = PB4
* RB0 = PB0
* RB1 = PC2
* RA0 = ADC1_IN11
* - = PB5
* + = PB6
*/
typedef enum {
IDLE,
TURN_ON
} status_t;
status_t status = IDLE;
int X_ms = X_VAL; /* 'r'*100 */
int Y_ms = 3800; /* X_ms / 3 */
int Z_ms = 495; /* 'c'*5 */
int time_turn_on = 0;
int can_blind = 0;
int y_incr = 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_input(GPIOB, 5);
GPIO_config_EXTI(GPIOB, EXTI5);
EXTI_enable(EXTI5, FALLING_EDGE);
GPIO_config_input(GPIOB, 6);
GPIO_config_EXTI(GPIOB, EXTI6);
EXTI_enable(EXTI6, FALLING_EDGE);
GPIO_config_output(GPIOB, 0);
GPIO_config_output(GPIOC, 2);
TIM_init(TIM2);
TIM_set(TIM2, 0);
TIM_config_timebase(TIM2, 8400, 10);
TIM_enable_irq(TIM2, IRQ_UPDATE);
TIM_on(TIM2);
TIM_init(TIM3);
TIM_set(TIM3, 0);
TIM_config_timebase(TIM3, 8400, Z_ms * 10);
TIM_enable_irq(TIM3, IRQ_UPDATE);
TIM_on(TIM3);
ADC_init(ADC1, ADC_RES_8, ADC_ALIGN_RIGHT);
ADC_channel_config(ADC1, GPIOC, 1, 11);
ADC_on(ADC1);
ADC_sample_channel(ADC1, 11);
CONSOLE_init();
}
int
main()
{
init();
char s[5];
int min = X_VAL - SECS_3;
int max = X_VAL + SECS_3;
int value;
int adc_read;
for (;;) {
ADC_start(ADC1);
while (!ADC_completed(ADC1))
;
adc_read = ADC_read(ADC1);
value = ((ADC_read(ADC1) * (max - min)) / 255.0) + min;
X_ms = value;
Y_ms = value / 3;
sprintf(s, "%f", value / 1000.0);
DISPLAY_puts(0, s);
}
return 0;
}
void
turn_off(void)
{
status = IDLE;
GPIO_write(GPIOB, 0, 0);
GPIO_write(GPIOC, 2, 0);
time_turn_on = 0;
can_blind = 0;
}
void
EXTI15_10_IRQHandler(void)
{
if (EXTI_isset(EXTI10)) {
if (status == IDLE) {
status = TURN_ON;
GPIO_write(GPIOB, 0, 1);
TIM2->CNT = 0;
} else {
turn_off();
}
EXTI_clear(EXTI10);
}
}
void
EXTI9_5_IRQHandler(void)
{
if (EXTI_isset(EXTI5)) {
y_incr -= 100;
printf("%d\n", y_incr);
EXTI_clear(EXTI5);
}
if (EXTI_isset(EXTI6)) {
y_incr += 100;
printf("%d\n", y_incr);
EXTI_clear(EXTI6);
}
}
void
EXTI4_IRQHandler(void)
{
if (EXTI_isset(EXTI4)) {
if (status == TURN_ON) {
time_turn_on = 0;
}
EXTI_clear(EXTI4);
}
}
void
TIM2_IRQHandler(void)
{
if (TIM_update_check(TIM2)) {
if (status == TURN_ON) {
if (time_turn_on >= X_ms) {
can_blind = 1;
} else {
can_blind = 0;
}
if (time_turn_on >= X_ms + Y_ms + y_incr) {
turn_off();
}
time_turn_on++;
}
TIM_update_clear(TIM2);
}
}
void
TIM3_IRQHandler(void)
{
if (TIM_update_check(TIM3)) {
if (can_blind) {
GPIO_toggle(GPIOC, 2);
} else {
GPIO_write(GPIOC, 2, 0);
}
TIM_update_clear(TIM3);
}
}
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