/*
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* miscdev.c
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*
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* Created on: Jan 1, 2023
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* Author: Think
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*/
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#include <miscdev.h>
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#include "stm32l4xx_hal.h"
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#include "main.h"
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#include "adc.h"
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#include "tim.h"
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#include "miscdev.h"
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/*
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*+----------------------+
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*| GPIO Led API |
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*+----------------------+
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*/
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gpio_t leds[LedMax] =
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{
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{ "RedLed", LedRed_GPIO_Port, LedRed_Pin},
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{ "GreenLed", LedGreen_GPIO_Port, LedGreen_Pin},
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{ "BlueLed", LedBlue_GPIO_Port, LedBlue_Pin},
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};
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void turn_led(lednum_t which, status_t status)
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{
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GPIO_PinState level;
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if( which >= LedMax )
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return ;
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level = status==OFF ? GPIO_PIN_SET : GPIO_PIN_RESET;
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HAL_GPIO_WritePin(leds[which].group, leds[which].pin, level);
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}
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void blink_led(lednum_t which, uint32_t interval)
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{
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turn_led(which, ON);
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HAL_Delay(interval);
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turn_led(which, OFF);
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HAL_Delay(interval);
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}
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/*
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*+----------------------+
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*| GPIO Relay API |
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*+----------------------+
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*/
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void turn_relay(status_t status)
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{
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GPIO_PinState level;
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level = status==OFF ? GPIO_PIN_RESET : GPIO_PIN_SET;
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HAL_GPIO_WritePin(Relay_GPIO_Port, Relay_Pin, level);
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}
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/*
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*+----------------------+
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*| GPIO Key API |
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*+----------------------+
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*/
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void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
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{
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static unsigned char status[3];
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if( Key1_Pin == GPIO_Pin )
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{
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status[0] ^= 1;
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turn_led(LedRed, status[0]);
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}
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else if( Key2_Pin == GPIO_Pin )
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{
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status[1] ^= 1;
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turn_led(LedGreen, status[1]);
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}
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if( Key3_Pin == GPIO_Pin )
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{
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status[2] ^= 1;
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turn_led(LedBlue, status[2]);
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}
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}
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/*
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*+----------------------------+
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*| ADC noisy & lux sensor API |
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*+----------------------------+
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*/
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int adc_sample_lux_noisy(uint32_t *lux, uint32_t *noisy)
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{
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uint8_t i;
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uint32_t timeout = 0xffffff;
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for(i=0; i<ADCCHN_MAX; i++)
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{
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HAL_ADC_Start(&hadc1);
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HAL_ADC_PollForConversion(&hadc1, timeout);
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if( ADCCHN_NOISY == i )
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{
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*noisy = HAL_ADC_GetValue(&hadc1);
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}
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else if( ADCCHN_LUX == i )
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{
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*lux = HAL_ADC_GetValue(&hadc1);
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}
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HAL_Delay(10);
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}
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HAL_ADC_Stop(&hadc1);
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return 0;
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}
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/*
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*+----------------------------+
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* Timer Buzzer/delay API |
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*+----------------------------+
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*/
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void beep_start(uint16_t times, uint16_t interval)
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{
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while( times-- )
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{
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/* Start buzzer */
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if (HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_4) != HAL_OK)
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{
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/* Starting Error */
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Error_Handler();
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}
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HAL_Delay(interval);
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/* Stop buzzer */
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if (HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_4) != HAL_OK)
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{
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/* Starting Error */
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Error_Handler();
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}
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HAL_Delay(interval);
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}
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}
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/* Max to 60000 us*/
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void delay_us(uint16_t us)
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{
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uint16_t differ = 60000-us;
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HAL_TIM_Base_Start(&htim6);
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__HAL_TIM_SET_COUNTER(&htim6, differ);
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while( differ < 60000 )
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{
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differ=__HAL_TIM_GET_COUNTER(&htim6);
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}
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HAL_TIM_Base_Stop(&htim6);
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}
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