30 lines
796 B
C
30 lines
796 B
C
//
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// Created by robtor on 16.12.22.
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//
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#include "main.h"
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#include "button_input.h"
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bool rot_button = false;
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uint16_t rot_counter = 0;
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void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) {
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static uint16_t rot_state = 0;
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static uint16_t btn_state = 0;
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rot_state = (rot_state << 1) | (HAL_GPIO_ReadPin(RRCLK_GPIO_Port, RRCLK_Pin) == GPIO_PIN_SET ? 0x1 : 0x0) | 0xe000;
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btn_state = (btn_state << 1) | (HAL_GPIO_ReadPin(RRSW_GPIO_Port, RRSW_Pin) == GPIO_PIN_SET ? 0x1 : 0x0) | 0xe000;
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if (rot_state == 0xf000) {
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rot_state = 0x0000;
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if (HAL_GPIO_ReadPin(RRDT_GPIO_Port, RRDT_Pin) == GPIO_PIN_SET) {
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rot_counter++;
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} else {
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rot_counter--;
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}
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}
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if (btn_state == 0xf000) {
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rot_button = true;
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}
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} |