微控制器應用實驗室: STM32 HAL || Large 7-Segment LED with WS2812 || Rotary Encoder || STM32F103C8T6

本文章介紹利用WS2812燈條來製作一個大型的七段式顯示器，用來顯示SHT40的溫濕度。利用Rotary encoder來設定七段式顯示器的顏色。MCU 使用STM32F103C8T6。

WS2812每個0或1的編碼方式與時序。

STM32F103C8T6使用SPI介面來輸出波形。

RCC Clock 設定40MHz

SPI baud rate:

SPI GPIO:

Rotary Encoder Timer設定：

成果展示：

程式碼：

main.c

 /* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2024 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
 
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "ws2812.h"
#include "sht40.h"
#include "math.h"
/* USER CODE END Includes */
 
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
 
/* USER CODE END PTD */
 
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
 
/* USER CODE END PD */
 
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
 
/* USER CODE END PM */
 
/* Private variables ---------------------------------------------------------*/
I2C_HandleTypeDef hi2c1;
 
SPI_HandleTypeDef hspi1;
DMA_HandleTypeDef hdma_spi1_tx;
 
TIM_HandleTypeDef htim2;
TIM_HandleTypeDef htim3;
 
/* USER CODE BEGIN PV */
// 7-segment digit
uint8_t digit[13][7] = {
    {1,1,1,1,1,1,0}, //0
    {1,0,0,0,0,1,0}, //1
    {0,1,1,0,1,1,1}, //2
    {1,1,0,0,1,1,1}, //3
    {1,0,0,1,0,1,1}, //4
    {1,1,0,1,1,0,1}, //5
    {1,1,1,1,1,0,1}, //6
    {1,0,0,0,1,1,0}, //7
    {1,1,1,1,1,1,1}, //8
    {1,0,0,1,1,1,1}, //9
	{0,0,0,1,1,1,1}, // degree
	{0,1,1,1,1,0,0}, // C
	{1,1,1,0,0,0,1}, // low%
};
uint8_t rgb_color[3] = {128,128,128};
enum {
	SET_RED=0,
	SET_GREEN=1,
	SET_BLUE=2,
	SET_COUNT=3,
};
uint8_t rgb_set_index=SET_RED;
int16_t rgb_set_start_counter=0;
 
uint8_t sw_state=1;
uint8_t set_color_mode=0;
uint8_t long_press_count=0;
int16_t counter=0;
 
ws2812_pixel_color_t pixels_color;
 
/* USER CODE END PV */
 
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_SPI1_Init(void);
static void MX_I2C1_Init(void);
static void MX_TIM2_Init(void);
static void MX_TIM3_Init(void);
/* USER CODE BEGIN PFP */
 
/* USER CODE END PFP */
 
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
void display_digit(uint8_t number) {
 
    for (int i=0; i < 7; i++) {
        if (digit[number][i] == 1) {
        	for (int k=0; k < 3;k++) ws2812_display_pixel(&pixels_color,1);
        }
        else {
        	for (int k=0; k < 3;k++) ws2812_display_pixel(&pixels_color,0);
        }
    }
}
 
void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef* htim) {
	if (set_color_mode) {
		counter = (int16_t)__HAL_TIM_GET_COUNTER(htim);
		rgb_color[rgb_set_index] += (counter - rgb_set_start_counter);
		rgb_set_start_counter = counter;
		ws2812_set_pixel_color(&pixels_color,0,0,rgb_color[SET_BLUE]);
		display_digit(1);
		ws2812_set_pixel_color(&pixels_color,0,rgb_color[SET_GREEN],0);
		display_digit(1);
		ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],0,0);
		display_digit(1);
		ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);
		display_digit(1);
	}
}
 
 
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){
	if (HAL_GPIO_ReadPin(RT_SW_GPIO_Port, RT_SW_Pin) == GPIO_PIN_SET) {
		HAL_TIM_Base_Stop_IT(&htim2);
		if (long_press_count > 20) {
			set_color_mode = !set_color_mode;
		}
		long_press_count=0;
		sw_state = 1;
 
		rgb_set_index = (rgb_set_index+1) % SET_COUNT;
		rgb_set_start_counter = (int16_t)__HAL_TIM_GET_COUNTER(&htim3);
 
		if (set_color_mode){
			ws2812_set_pixel_color(&pixels_color,0,0,rgb_color[SET_BLUE]);
			display_digit(1);
			ws2812_set_pixel_color(&pixels_color,0,rgb_color[SET_GREEN],0);
			display_digit(1);
			ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],0,0);
			display_digit(1);
			ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);
			display_digit(1);
		}
	} else {
		long_press_count++;
	}
 
}
 
 
void HAL_GPIO_EXTI_Callback(uint16_t gpio) {
	if (gpio == RT_SW_Pin && sw_state) {
		sw_state=0;
		HAL_TIM_Base_Start_IT(&htim2);
	}
}
/* USER CODE END 0 */
 
/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{
 
  /* USER CODE BEGIN 1 */
 
  /* USER CODE END 1 */
 
  /* MCU Configuration--------------------------------------------------------*/
 
  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();
 
  /* USER CODE BEGIN Init */
 
  /* USER CODE END Init */
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* USER CODE BEGIN SysInit */
 
  /* USER CODE END SysInit */
 
  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_SPI1_Init();
  MX_I2C1_Init();
  MX_TIM2_Init();
  MX_TIM3_Init();
  /* USER CODE BEGIN 2 */
 
  HAL_TIM_Encoder_Start_IT(&htim3, TIM_CHANNEL_ALL);
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);
 
 
 uint8_t temp, digit0, digit1;
 float sht40_temp, sht40_humi;
 while (1)
 {
	sht40_get_th_data(&sht40_temp, &sht40_humi);
	temp = (uint8_t) round(sht40_temp);
	digit0 = temp%10;
	digit1 = temp/10;
	if(!set_color_mode) {
	  display_digit(11);
	  display_digit(10);
	  display_digit(digit0);
	  display_digit(digit1);
	  HAL_Delay(2000);
	}
 
	temp = (uint8_t) round(sht40_humi);
	digit0 = temp%10;
	digit1 = temp/10;
	if(!set_color_mode) {
	  display_digit(12);
	  display_digit(10);
	  display_digit(digit0);
	  display_digit(digit1);
	  HAL_Delay(2000);
	}
 
    /* USER CODE END WHILE */
 
    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}
 
/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
 
  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL5;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
 
  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 
  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}
 
/**
  * @brief I2C1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_I2C1_Init(void)
{
 
  /* USER CODE BEGIN I2C1_Init 0 */
 
  /* USER CODE END I2C1_Init 0 */
 
  /* USER CODE BEGIN I2C1_Init 1 */
 
  /* USER CODE END I2C1_Init 1 */
  hi2c1.Instance = I2C1;
  hi2c1.Init.ClockSpeed = 100000;
  hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
  hi2c1.Init.OwnAddress1 = 0;
  hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
  hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
  hi2c1.Init.OwnAddress2 = 0;
  hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
  hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
  if (HAL_I2C_Init(&hi2c1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN I2C1_Init 2 */
 
  /* USER CODE END I2C1_Init 2 */
 
}
 
/**
  * @brief SPI1 Initialization Function
  * @param None
  * @retval None
  */
static void MX_SPI1_Init(void)
{
 
  /* USER CODE BEGIN SPI1_Init 0 */
 
  /* USER CODE END SPI1_Init 0 */
 
  /* USER CODE BEGIN SPI1_Init 1 */
 
  /* USER CODE END SPI1_Init 1 */
  /* SPI1 parameter configuration*/
  hspi1.Instance = SPI1;
  hspi1.Init.Mode = SPI_MODE_MASTER;
  hspi1.Init.Direction = SPI_DIRECTION_1LINE;
  hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
  hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi1.Init.NSS = SPI_NSS_SOFT;
  hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
  hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
  hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
  hspi1.Init.CRCPolynomial = 10;
  if (HAL_SPI_Init(&hspi1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN SPI1_Init 2 */
 
  /* USER CODE END SPI1_Init 2 */
 
}
 
/**
  * @brief TIM2 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM2_Init(void)
{
 
  /* USER CODE BEGIN TIM2_Init 0 */
 
  /* USER CODE END TIM2_Init 0 */
 
  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
 
  /* USER CODE BEGIN TIM2_Init 1 */
 
  /* USER CODE END TIM2_Init 1 */
  htim2.Instance = TIM2;
  htim2.Init.Prescaler = 2000-1;
  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim2.Init.Period = 1000-1;
  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM2_Init 2 */
 
  /* USER CODE END TIM2_Init 2 */
 
}
 
/**
  * @brief TIM3 Initialization Function
  * @param None
  * @retval None
  */
static void MX_TIM3_Init(void)
{
 
  /* USER CODE BEGIN TIM3_Init 0 */
 
  /* USER CODE END TIM3_Init 0 */
 
  TIM_Encoder_InitTypeDef sConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
 
  /* USER CODE BEGIN TIM3_Init 1 */
 
  /* USER CODE END TIM3_Init 1 */
  htim3.Instance = TIM3;
  htim3.Init.Prescaler = 0;
  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim3.Init.Period = 65535;
  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  sConfig.EncoderMode = TIM_ENCODERMODE_TI12;
  sConfig.IC1Polarity = TIM_ICPOLARITY_FALLING;
  sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI;
  sConfig.IC1Prescaler = TIM_ICPSC_DIV1;
  sConfig.IC1Filter = 0;
  sConfig.IC2Polarity = TIM_ICPOLARITY_FALLING;
  sConfig.IC2Selection = TIM_ICSELECTION_DIRECTTI;
  sConfig.IC2Prescaler = TIM_ICPSC_DIV1;
  sConfig.IC2Filter = 0;
  if (HAL_TIM_Encoder_Init(&htim3, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM3_Init 2 */
 
  /* USER CODE END TIM3_Init 2 */
 
}
 
/**
  * Enable DMA controller clock
  */
static void MX_DMA_Init(void)
{
 
  /* DMA controller clock enable */
  __HAL_RCC_DMA1_CLK_ENABLE();
 
  /* DMA interrupt init */
  /* DMA1_Channel3_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
 
}
 
/**
  * @brief GPIO Initialization Function
  * @param None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */
 
  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOD_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();
  __HAL_RCC_GPIOB_CLK_ENABLE();
 
  /*Configure GPIO pin : RT_SW_Pin */
  GPIO_InitStruct.Pin = RT_SW_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_PULLUP;
  HAL_GPIO_Init(RT_SW_GPIO_Port, &GPIO_InitStruct);
 
  /* EXTI interrupt init*/
  HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(EXTI3_IRQn);
 
/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}
 
/* USER CODE BEGIN 4 */
 
/* USER CODE END 4 */
 
/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}
 
#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

ws2812.c

 #include "main.h"
#include "ws2812.h"
#include "string.h"
 
extern SPI_HandleTypeDef hspi1;
extern DMA_HandleTypeDef hdma_spi1_tx;
 
void ws2812_set_pixel_color(ws2812_pixel_color_t *ws2812_pixels_color, uint8_t red, uint8_t green, uint8_t blue) {
	ws2812_pixels_color->green.bit0 = green >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit1 = green >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit2 = green >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit3 = green >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit4 = green >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit5 = green >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit6 = green >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit7 = green >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
 
	ws2812_pixels_color->red.bit0 = red >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit1 = red >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit2 = red >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit3 = red >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit4 = red >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit5 = red >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit6 = red >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit7 = red >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
 
	ws2812_pixels_color->blue.bit0 = blue >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit1 = blue >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit2 = blue >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit3 = blue >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit4 = blue >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit5 = blue >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit6 = blue >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit7 = blue >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
}
 
void ws2812_display_pixel(ws2812_pixel_color_t *ws2812_pixels_color,uint8_t show) {
	if (show) {
		HAL_SPI_Transmit(&hspi1, (uint8_t*)ws2812_pixels_color, WS2812_PIXEL_BYTES, 1000);
	} else {
		ws2812_pixel_color_t black;
		ws2812_set_pixel_color(&black, 0, 0, 0);
		HAL_SPI_Transmit(&hspi1, (uint8_t*)&black  , WS2812_PIXEL_BYTES, 1000);
	}
}

ws2812.h

 #ifndef INC_WS2812_H_
#define INC_WS2812_H_
 
#define WS2812_BIT_1 0b110
#define WS2812_BIT_0 0b100
 
#define WS2812_PIXEL_BYTES	12 // 3*4, 4 bytes for red, green or blue
 
typedef	struct {
	uint8_t bit6:4;  //low nibble
	uint8_t bit7:4;  //high nibble for byte one
	uint8_t bit4:4;
	uint8_t bit5:4;
	uint8_t bit2:4;
	uint8_t bit3:4;
	uint8_t bit0:4;
	uint8_t bit1:4;
} ws2812_color_bits_t;
 
typedef struct {
	ws2812_color_bits_t green;
	ws2812_color_bits_t red;
	ws2812_color_bits_t blue;
}ws2812_pixel_color_t;
 
 
void ws2812_display_pixel(ws2812_pixel_color_t *ws2812_pixels_color,uint8_t show);
void ws2812_set_pixel_color(ws2812_pixel_color_t *ws2812_pixels_color, uint8_t red, uint8_t green, uint8_t blue);
 
 
#endif /* INC_WS2812_H_ */

sht40.c

 #include "sht40.h"
 
 
void sht40_get_th_data(float *temp, float *humi) {
        uint8_t buff[8];
 
        float t_ticks, rh_ticks, t_degC, rh_pRH;
        buff[0] = 0xFD;
        //ret = i2c_write_blocking(I2C_SHT40_PORT, 0x44, buff,1,false);
        HAL_I2C_Master_Transmit(&hi2c1, 0x44<<1, buff, 1, 1000);
        HAL_Delay(10);
        //ret = i2c_read_blocking(I2C_SHT40_PORT, 0x44, buff, 6, false);
        HAL_I2C_Master_Receive(&hi2c1, 0x44<<1, buff, 6,1000);
        t_ticks = buff[0] * 256 + buff[1];
        //checksum_t = rx_bytes[2]
        rh_ticks = buff[3] * 256 + buff[4];
        //checksum_rh = rx_bytes[5]
        t_degC = -45 + 175 * t_ticks/65535;
        rh_pRH = -6 + 125 * rh_ticks/65535;
        if (rh_pRH > 100)
            rh_pRH = 100;
        if (rh_pRH < 0)
            rh_pRH = 0;
 
        *temp = t_degC;
        *humi = rh_pRH;
        //printf("temp:%f, himidity:%f\n", t_degC, rh_pRH);
}

sht40.h

 #ifndef __SHT40_H__
#define __SHT40_H__
#include "main.h"
extern I2C_HandleTypeDef hi2c1;
 
 
void sht40_get_th_data(float* temp, float* humi);
 
#endif

WS2812_F103.ioc

 #MicroXplorer Configuration settings - do not modify
CAD.formats=
CAD.pinconfig=
CAD.provider=
Dma.Request0=SPI1_TX
Dma.RequestsNb=1
Dma.SPI1_TX.0.Direction=DMA_MEMORY_TO_PERIPH
Dma.SPI1_TX.0.Instance=DMA1_Channel3
Dma.SPI1_TX.0.MemDataAlignment=DMA_MDATAALIGN_BYTE
Dma.SPI1_TX.0.MemInc=DMA_MINC_ENABLE
Dma.SPI1_TX.0.Mode=DMA_NORMAL
Dma.SPI1_TX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
Dma.SPI1_TX.0.PeriphInc=DMA_PINC_DISABLE
Dma.SPI1_TX.0.Priority=DMA_PRIORITY_LOW
Dma.SPI1_TX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
File.Version=6
GPIO.groupedBy=Group By Peripherals
KeepUserPlacement=false
Mcu.CPN=STM32F103C8T6
Mcu.Family=STM32F1
Mcu.IP0=DMA
Mcu.IP1=I2C1
Mcu.IP2=NVIC
Mcu.IP3=RCC
Mcu.IP4=SPI1
Mcu.IP5=SYS
Mcu.IP6=TIM2
Mcu.IP7=TIM3
Mcu.IPNb=8
Mcu.Name=STM32F103C(8-B)Tx
Mcu.Package=LQFP48
Mcu.Pin0=PD0-OSC_IN
Mcu.Pin1=PD1-OSC_OUT
Mcu.Pin10=PB7
Mcu.Pin11=VP_SYS_VS_Systick
Mcu.Pin12=VP_TIM2_VS_ClockSourceINT
Mcu.Pin2=PA5
Mcu.Pin3=PA7
Mcu.Pin4=PA13
Mcu.Pin5=PA14
Mcu.Pin6=PB3
Mcu.Pin7=PB4
Mcu.Pin8=PB5
Mcu.Pin9=PB6
Mcu.PinsNb=13
Mcu.ThirdPartyNb=0
Mcu.UserConstants=
Mcu.UserName=STM32F103C8Tx
MxCube.Version=6.12.0
MxDb.Version=DB.6.0.120
NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.DMA1_Channel3_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:true
NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.EXTI3_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
NVIC.ForceEnableDMAVector=true
NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
NVIC.TIM2_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
NVIC.TIM3_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
PA13.Mode=Serial_Wire
PA13.Signal=SYS_JTMS-SWDIO
PA14.Mode=Serial_Wire
PA14.Signal=SYS_JTCK-SWCLK
PA5.Mode=Simplex_Bidirectional_Master
PA5.Signal=SPI1_SCK
PA7.Mode=Simplex_Bidirectional_Master
PA7.Signal=SPI1_MOSI
PB3.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
PB3.GPIO_Label=RT_SW
PB3.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_FALLING
PB3.GPIO_PuPd=GPIO_PULLUP
PB3.Locked=true
PB3.Signal=GPXTI3
PB4.Signal=S_TIM3_CH1
PB5.Signal=S_TIM3_CH2
PB6.Mode=I2C
PB6.Signal=I2C1_SCL
PB7.Mode=I2C
PB7.Signal=I2C1_SDA
PD0-OSC_IN.Mode=HSE-External-Oscillator
PD0-OSC_IN.Signal=RCC_OSC_IN
PD1-OSC_OUT.Mode=HSE-External-Oscillator
PD1-OSC_OUT.Signal=RCC_OSC_OUT
PinOutPanel.RotationAngle=0
ProjectManager.AskForMigrate=true
ProjectManager.BackupPrevious=false
ProjectManager.CompilerOptimize=6
ProjectManager.ComputerToolchain=false
ProjectManager.CoupleFile=false
ProjectManager.CustomerFirmwarePackage=
ProjectManager.DefaultFWLocation=true
ProjectManager.DeletePrevious=true
ProjectManager.DeviceId=STM32F103C8Tx
ProjectManager.FirmwarePackage=STM32Cube FW_F1 V1.8.6
ProjectManager.FreePins=false
ProjectManager.HalAssertFull=false
ProjectManager.HeapSize=0x200
ProjectManager.KeepUserCode=true
ProjectManager.LastFirmware=true
ProjectManager.LibraryCopy=1
ProjectManager.MainLocation=Core/Src
ProjectManager.NoMain=false
ProjectManager.PreviousToolchain=
ProjectManager.ProjectBuild=false
ProjectManager.ProjectFileName=WS2812_F103.ioc
ProjectManager.ProjectName=WS2812_F103
ProjectManager.ProjectStructure=
ProjectManager.RegisterCallBack=
ProjectManager.StackSize=0x400
ProjectManager.TargetToolchain=STM32CubeIDE
ProjectManager.ToolChainLocation=
ProjectManager.UAScriptAfterPath=
ProjectManager.UAScriptBeforePath=
ProjectManager.UnderRoot=true
ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_SPI1_Init-SPI1-false-HAL-true,5-MX_I2C1_Init-I2C1-false-HAL-true,6-MX_TIM2_Init-TIM2-false-HAL-true,7-MX_TIM3_Init-TIM3-false-HAL-true
RCC.ADCFreqValue=20000000
RCC.AHBFreq_Value=40000000
RCC.APB1CLKDivider=RCC_HCLK_DIV2
RCC.APB1Freq_Value=20000000
RCC.APB1TimFreq_Value=40000000
RCC.APB2Freq_Value=40000000
RCC.APB2TimFreq_Value=40000000
RCC.FCLKCortexFreq_Value=40000000
RCC.FamilyName=M
RCC.HCLKFreq_Value=40000000
RCC.IPParameters=ADCFreqValue,AHBFreq_Value,APB1CLKDivider,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,MCOFreq_Value,PLLCLKFreq_Value,PLLMCOFreq_Value,PLLMUL,PLLSourceVirtual,SYSCLKFreq_VALUE,SYSCLKSource,TimSysFreq_Value,USBFreq_Value,VCOOutput2Freq_Value
RCC.MCOFreq_Value=40000000
RCC.PLLCLKFreq_Value=40000000
RCC.PLLMCOFreq_Value=20000000
RCC.PLLMUL=RCC_PLL_MUL5
RCC.PLLSourceVirtual=RCC_PLLSOURCE_HSE
RCC.SYSCLKFreq_VALUE=40000000
RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
RCC.TimSysFreq_Value=40000000
RCC.USBFreq_Value=40000000
RCC.VCOOutput2Freq_Value=8000000
SH.GPXTI3.0=GPIO_EXTI3
SH.GPXTI3.ConfNb=1
SH.S_TIM3_CH1.0=TIM3_CH1,Encoder_Interface
SH.S_TIM3_CH1.ConfNb=1
SH.S_TIM3_CH2.0=TIM3_CH2,Encoder_Interface
SH.S_TIM3_CH2.ConfNb=1
SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_16
SPI1.CalculateBaudRate=2.5 MBits/s
SPI1.Direction=SPI_DIRECTION_1LINE
SPI1.IPParameters=VirtualType,Mode,Direction,BaudRatePrescaler,CalculateBaudRate
SPI1.Mode=SPI_MODE_MASTER
SPI1.VirtualType=VM_MASTER
TIM2.IPParameters=Prescaler,Period
TIM2.Period=1000-1
TIM2.Prescaler=2000-1
TIM3.EncoderMode=TIM_ENCODERMODE_TI12
TIM3.IC1Polarity=TIM_ICPOLARITY_FALLING
TIM3.IC2Polarity=TIM_ICPOLARITY_FALLING
TIM3.IPParameters=EncoderMode,IC1Polarity,IC2Polarity
VP_SYS_VS_Systick.Mode=SysTick
VP_SYS_VS_Systick.Signal=SYS_VS_Systick
VP_TIM2_VS_ClockSourceINT.Mode=Internal
VP_TIM2_VS_ClockSourceINT.Signal=TIM2_VS_ClockSourceINT
board=custom
isbadioc=false

微控制器應用實驗室

prettyprint

2024年9月21日星期六

STM32 HAL || Large 7-Segment LED with WS2812 || Rotary Encoder || STM32F103C8T6

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	/* USER CODE BEGIN Header */
	/**
	******************************************************************************
	* @file : main.c
	* @brief : Main program body
	******************************************************************************
	* @attention
	*
	* Copyright (c) 2024 STMicroelectronics.
	* All rights reserved.
	*
	* This software is licensed under terms that can be found in the LICENSE file
	* in the root directory of this software component.
	* If no LICENSE file comes with this software, it is provided AS-IS.
	*
	******************************************************************************
	*/
	/* USER CODE END Header */
	/* Includes ------------------------------------------------------------------*/
	#include "main.h"

	/* Private includes ----------------------------------------------------------*/
	/* USER CODE BEGIN Includes */
	#include "ws2812.h"
	#include "sht40.h"
	#include "math.h"
	/* USER CODE END Includes */

	/* Private typedef -----------------------------------------------------------*/
	/* USER CODE BEGIN PTD */

	/* USER CODE END PTD */

	/* Private define ------------------------------------------------------------*/
	/* USER CODE BEGIN PD */

	/* USER CODE END PD */

	/* Private macro -------------------------------------------------------------*/
	/* USER CODE BEGIN PM */

	/* USER CODE END PM */

	/* Private variables ---------------------------------------------------------*/
	I2C_HandleTypeDef hi2c1;

	SPI_HandleTypeDef hspi1;
	DMA_HandleTypeDef hdma_spi1_tx;

	TIM_HandleTypeDef htim2;
	TIM_HandleTypeDef htim3;

	/* USER CODE BEGIN PV */
	// 7-segment digit
	uint8_t digit[13][7] = {
	{1,1,1,1,1,1,0}, //0
	{1,0,0,0,0,1,0}, //1
	{0,1,1,0,1,1,1}, //2
	{1,1,0,0,1,1,1}, //3
	{1,0,0,1,0,1,1}, //4
	{1,1,0,1,1,0,1}, //5
	{1,1,1,1,1,0,1}, //6
	{1,0,0,0,1,1,0}, //7
	{1,1,1,1,1,1,1}, //8
	{1,0,0,1,1,1,1}, //9
	{0,0,0,1,1,1,1}, // degree
	{0,1,1,1,1,0,0}, // C
	{1,1,1,0,0,0,1}, // low%
	};
	uint8_t rgb_color[3] = {128,128,128};
	enum {
	SET_RED=0,
	SET_GREEN=1,
	SET_BLUE=2,
	SET_COUNT=3,
	};
	uint8_t rgb_set_index=SET_RED;
	int16_t rgb_set_start_counter=0;

	uint8_t sw_state=1;
	uint8_t set_color_mode=0;
	uint8_t long_press_count=0;
	int16_t counter=0;

	ws2812_pixel_color_t pixels_color;

	/* USER CODE END PV */

	/* Private function prototypes -----------------------------------------------*/
	void SystemClock_Config(void);
	static void MX_GPIO_Init(void);
	static void MX_DMA_Init(void);
	static void MX_SPI1_Init(void);
	static void MX_I2C1_Init(void);
	static void MX_TIM2_Init(void);
	static void MX_TIM3_Init(void);
	/* USER CODE BEGIN PFP */

	/* USER CODE END PFP */

	/* Private user code ---------------------------------------------------------*/
	/* USER CODE BEGIN 0 */
	void display_digit(uint8_t number) {

	for (int i=0; i < 7; i++) {
	if (digit[number][i] == 1) {
	for (int k=0; k < 3;k++) ws2812_display_pixel(&pixels_color,1);
	}
	else {
	for (int k=0; k < 3;k++) ws2812_display_pixel(&pixels_color,0);
	}
	}
	}

	void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef* htim) {
	if (set_color_mode) {
	counter = (int16_t)__HAL_TIM_GET_COUNTER(htim);
	rgb_color[rgb_set_index] += (counter - rgb_set_start_counter);
	rgb_set_start_counter = counter;
	ws2812_set_pixel_color(&pixels_color,0,0,rgb_color[SET_BLUE]);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,0,rgb_color[SET_GREEN],0);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],0,0);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);
	display_digit(1);
	}
	}


	void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){
	if (HAL_GPIO_ReadPin(RT_SW_GPIO_Port, RT_SW_Pin) == GPIO_PIN_SET) {
	HAL_TIM_Base_Stop_IT(&htim2);
	if (long_press_count > 20) {
	set_color_mode = !set_color_mode;
	}
	long_press_count=0;
	sw_state = 1;

	rgb_set_index = (rgb_set_index+1) % SET_COUNT;
	rgb_set_start_counter = (int16_t)__HAL_TIM_GET_COUNTER(&htim3);

	if (set_color_mode){
	ws2812_set_pixel_color(&pixels_color,0,0,rgb_color[SET_BLUE]);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,0,rgb_color[SET_GREEN],0);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],0,0);
	display_digit(1);
	ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);
	display_digit(1);
	}
	} else {
	long_press_count++;
	}

	}


	void HAL_GPIO_EXTI_Callback(uint16_t gpio) {
	if (gpio == RT_SW_Pin && sw_state) {
	sw_state=0;
	HAL_TIM_Base_Start_IT(&htim2);
	}
	}
	/* USER CODE END 0 */

	/**
	* @brief The application entry point.
	* @retval int
	*/
	int main(void)
	{

	/* USER CODE BEGIN 1 */

	/* USER CODE END 1 */

	/* MCU Configuration--------------------------------------------------------*/

	/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
	HAL_Init();

	/* USER CODE BEGIN Init */

	/* USER CODE END Init */

	/* Configure the system clock */
	SystemClock_Config();

	/* USER CODE BEGIN SysInit */

	/* USER CODE END SysInit */

	/* Initialize all configured peripherals */
	MX_GPIO_Init();
	MX_DMA_Init();
	MX_SPI1_Init();
	MX_I2C1_Init();
	MX_TIM2_Init();
	MX_TIM3_Init();
	/* USER CODE BEGIN 2 */

	HAL_TIM_Encoder_Start_IT(&htim3, TIM_CHANNEL_ALL);
	/* USER CODE END 2 */

	/* Infinite loop */
	/* USER CODE BEGIN WHILE */
	ws2812_set_pixel_color(&pixels_color,rgb_color[SET_RED],rgb_color[SET_GREEN],rgb_color[SET_BLUE]);


	uint8_t temp, digit0, digit1;
	float sht40_temp, sht40_humi;
	while (1)
	{
	sht40_get_th_data(&sht40_temp, &sht40_humi);
	temp = (uint8_t) round(sht40_temp);
	digit0 = temp%10;
	digit1 = temp/10;
	if(!set_color_mode) {
	display_digit(11);
	display_digit(10);
	display_digit(digit0);
	display_digit(digit1);
	HAL_Delay(2000);
	}

	temp = (uint8_t) round(sht40_humi);
	digit0 = temp%10;
	digit1 = temp/10;
	if(!set_color_mode) {
	display_digit(12);
	display_digit(10);
	display_digit(digit0);
	display_digit(digit1);
	HAL_Delay(2000);
	}

	/* USER CODE END WHILE */

	/* USER CODE BEGIN 3 */
	}
	/* USER CODE END 3 */
	}

	/**
	* @brief System Clock Configuration
	* @retval None
	*/
	void SystemClock_Config(void)
	{
	RCC_OscInitTypeDef RCC_OscInitStruct = {0};
	RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

	/** Initializes the RCC Oscillators according to the specified parameters
	* in the RCC_OscInitTypeDef structure.
	*/
	RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
	RCC_OscInitStruct.HSEState = RCC_HSE_ON;
	RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
	RCC_OscInitStruct.HSIState = RCC_HSI_ON;
	RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
	RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
	RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL5;
	if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
	{
	Error_Handler();
	}

	/** Initializes the CPU, AHB and APB buses clocks
	*/
	RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK
	\|RCC_CLOCKTYPE_PCLK1\|RCC_CLOCKTYPE_PCLK2;
	RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
	RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
	RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
	RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

	if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
	{
	Error_Handler();
	}
	}

	/**
	* @brief I2C1 Initialization Function
	* @param None
	* @retval None
	*/
	static void MX_I2C1_Init(void)
	{

	/* USER CODE BEGIN I2C1_Init 0 */

	/* USER CODE END I2C1_Init 0 */

	/* USER CODE BEGIN I2C1_Init 1 */

	/* USER CODE END I2C1_Init 1 */
	hi2c1.Instance = I2C1;
	hi2c1.Init.ClockSpeed = 100000;
	hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2;
	hi2c1.Init.OwnAddress1 = 0;
	hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
	hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
	hi2c1.Init.OwnAddress2 = 0;
	hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
	hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
	if (HAL_I2C_Init(&hi2c1) != HAL_OK)
	{
	Error_Handler();
	}
	/* USER CODE BEGIN I2C1_Init 2 */

	/* USER CODE END I2C1_Init 2 */

	}

	/**
	* @brief SPI1 Initialization Function
	* @param None
	* @retval None
	*/
	static void MX_SPI1_Init(void)
	{

	/* USER CODE BEGIN SPI1_Init 0 */

	/* USER CODE END SPI1_Init 0 */

	/* USER CODE BEGIN SPI1_Init 1 */

	/* USER CODE END SPI1_Init 1 */
	/* SPI1 parameter configuration*/
	hspi1.Instance = SPI1;
	hspi1.Init.Mode = SPI_MODE_MASTER;
	hspi1.Init.Direction = SPI_DIRECTION_1LINE;
	hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
	hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
	hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
	hspi1.Init.NSS = SPI_NSS_SOFT;
	hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_16;
	hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
	hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
	hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
	hspi1.Init.CRCPolynomial = 10;
	if (HAL_SPI_Init(&hspi1) != HAL_OK)
	{
	Error_Handler();
	}
	/* USER CODE BEGIN SPI1_Init 2 */

	/* USER CODE END SPI1_Init 2 */

	}

	/**
	* @brief TIM2 Initialization Function
	* @param None
	* @retval None
	*/
	static void MX_TIM2_Init(void)
	{

	/* USER CODE BEGIN TIM2_Init 0 */

	/* USER CODE END TIM2_Init 0 */

	TIM_ClockConfigTypeDef sClockSourceConfig = {0};
	TIM_MasterConfigTypeDef sMasterConfig = {0};

	/* USER CODE BEGIN TIM2_Init 1 */

	/* USER CODE END TIM2_Init 1 */
	htim2.Instance = TIM2;
	htim2.Init.Prescaler = 2000-1;
	htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
	htim2.Init.Period = 1000-1;
	htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
	htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
	if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
	{
	Error_Handler();
	}
	sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
	if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
	{
	Error_Handler();
	}
	sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
	if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
	{
	Error_Handler();
	}
	/* USER CODE BEGIN TIM2_Init 2 */

	/* USER CODE END TIM2_Init 2 */

	}

	/**
	* @brief TIM3 Initialization Function
	* @param None
	* @retval None
	*/
	static void MX_TIM3_Init(void)
	{

	/* USER CODE BEGIN TIM3_Init 0 */

	/* USER CODE END TIM3_Init 0 */

	TIM_Encoder_InitTypeDef sConfig = {0};
	TIM_MasterConfigTypeDef sMasterConfig = {0};

	/* USER CODE BEGIN TIM3_Init 1 */

	/* USER CODE END TIM3_Init 1 */
	htim3.Instance = TIM3;
	htim3.Init.Prescaler = 0;
	htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
	htim3.Init.Period = 65535;
	htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
	htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
	sConfig.EncoderMode = TIM_ENCODERMODE_TI12;
	sConfig.IC1Polarity = TIM_ICPOLARITY_FALLING;
	sConfig.IC1Selection = TIM_ICSELECTION_DIRECTTI;
	sConfig.IC1Prescaler = TIM_ICPSC_DIV1;
	sConfig.IC1Filter = 0;
	sConfig.IC2Polarity = TIM_ICPOLARITY_FALLING;
	sConfig.IC2Selection = TIM_ICSELECTION_DIRECTTI;
	sConfig.IC2Prescaler = TIM_ICPSC_DIV1;
	sConfig.IC2Filter = 0;
	if (HAL_TIM_Encoder_Init(&htim3, &sConfig) != HAL_OK)
	{
	Error_Handler();
	}
	sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
	sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
	if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
	{
	Error_Handler();
	}
	/* USER CODE BEGIN TIM3_Init 2 */

	/* USER CODE END TIM3_Init 2 */

	}

	/**
	* Enable DMA controller clock
	*/
	static void MX_DMA_Init(void)
	{

	/* DMA controller clock enable */
	__HAL_RCC_DMA1_CLK_ENABLE();

	/* DMA interrupt init */
	/* DMA1_Channel3_IRQn interrupt configuration */
	HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
	HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);

	}

	/**
	* @brief GPIO Initialization Function
	* @param None
	* @retval None
	*/
	static void MX_GPIO_Init(void)
	{
	GPIO_InitTypeDef GPIO_InitStruct = {0};
	/* USER CODE BEGIN MX_GPIO_Init_1 */
	/* USER CODE END MX_GPIO_Init_1 */

	/* GPIO Ports Clock Enable */
	__HAL_RCC_GPIOD_CLK_ENABLE();
	__HAL_RCC_GPIOA_CLK_ENABLE();
	__HAL_RCC_GPIOB_CLK_ENABLE();

	/Configure GPIO pin : RT_SW_Pin /
	GPIO_InitStruct.Pin = RT_SW_Pin;
	GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
	GPIO_InitStruct.Pull = GPIO_PULLUP;
	HAL_GPIO_Init(RT_SW_GPIO_Port, &GPIO_InitStruct);

	/* EXTI interrupt init*/
	HAL_NVIC_SetPriority(EXTI3_IRQn, 0, 0);
	HAL_NVIC_EnableIRQ(EXTI3_IRQn);

	/* USER CODE BEGIN MX_GPIO_Init_2 */
	/* USER CODE END MX_GPIO_Init_2 */
	}

	/* USER CODE BEGIN 4 */

	/* USER CODE END 4 */

	/**
	* @brief This function is executed in case of error occurrence.
	* @retval None
	*/
	void Error_Handler(void)
	{
	/* USER CODE BEGIN Error_Handler_Debug */
	/* User can add his own implementation to report the HAL error return state */
	__disable_irq();
	while (1)
	{
	}
	/* USER CODE END Error_Handler_Debug */
	}

	#ifdef USE_FULL_ASSERT
	/**
	* @brief Reports the name of the source file and the source line number
	* where the assert_param error has occurred.
	* @param file: pointer to the source file name
	* @param line: assert_param error line source number
	* @retval None
	*/
	void assert_failed(uint8_t *file, uint32_t line)
	{
	/* USER CODE BEGIN 6 */
	/* User can add his own implementation to report the file name and line number,
	ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
	/* USER CODE END 6 */
	}
	#endif /* USE_FULL_ASSERT */

	#include "main.h"
	#include "ws2812.h"
	#include "string.h"

	extern SPI_HandleTypeDef hspi1;
	extern DMA_HandleTypeDef hdma_spi1_tx;

	void ws2812_set_pixel_color(ws2812_pixel_color_t *ws2812_pixels_color, uint8_t red, uint8_t green, uint8_t blue) {
	ws2812_pixels_color->green.bit0 = green >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit1 = green >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit2 = green >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit3 = green >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit4 = green >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit5 = green >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit6 = green >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->green.bit7 = green >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;

	ws2812_pixels_color->red.bit0 = red >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit1 = red >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit2 = red >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit3 = red >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit4 = red >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit5 = red >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit6 = red >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->red.bit7 = red >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;

	ws2812_pixels_color->blue.bit0 = blue >> 0 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit1 = blue >> 1 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit2 = blue >> 2 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit3 = blue >> 3 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit4 = blue >> 4 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit5 = blue >> 5 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit6 = blue >> 6 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	ws2812_pixels_color->blue.bit7 = blue >> 7 & 0x01 ? WS2812_BIT_1:WS2812_BIT_0;
	}

	void ws2812_display_pixel(ws2812_pixel_color_t *ws2812_pixels_color,uint8_t show) {
	if (show) {
	HAL_SPI_Transmit(&hspi1, (uint8_t*)ws2812_pixels_color, WS2812_PIXEL_BYTES, 1000);
	} else {
	ws2812_pixel_color_t black;
	ws2812_set_pixel_color(&black, 0, 0, 0);
	HAL_SPI_Transmit(&hspi1, (uint8_t*)&black , WS2812_PIXEL_BYTES, 1000);
	}
	}

	#ifndef INC_WS2812_H_
	#define INC_WS2812_H_

	#define WS2812_BIT_1 0b110
	#define WS2812_BIT_0 0b100

	#define WS2812_PIXEL_BYTES 12 // 3*4, 4 bytes for red, green or blue

	typedef struct {
	uint8_t bit6:4; //low nibble
	uint8_t bit7:4; //high nibble for byte one
	uint8_t bit4:4;
	uint8_t bit5:4;
	uint8_t bit2:4;
	uint8_t bit3:4;
	uint8_t bit0:4;
	uint8_t bit1:4;
	} ws2812_color_bits_t;

	typedef struct {
	ws2812_color_bits_t green;
	ws2812_color_bits_t red;
	ws2812_color_bits_t blue;
	}ws2812_pixel_color_t;


	void ws2812_display_pixel(ws2812_pixel_color_t *ws2812_pixels_color,uint8_t show);
	void ws2812_set_pixel_color(ws2812_pixel_color_t *ws2812_pixels_color, uint8_t red, uint8_t green, uint8_t blue);


	#endif /* INC_WS2812_H_ */

	#include "sht40.h"


	void sht40_get_th_data(float temp, float humi) {
	uint8_t buff[8];

	float t_ticks, rh_ticks, t_degC, rh_pRH;
	buff[0] = 0xFD;
	//ret = i2c_write_blocking(I2C_SHT40_PORT, 0x44, buff,1,false);
	HAL_I2C_Master_Transmit(&hi2c1, 0x44<<1, buff, 1, 1000);
	HAL_Delay(10);
	//ret = i2c_read_blocking(I2C_SHT40_PORT, 0x44, buff, 6, false);
	HAL_I2C_Master_Receive(&hi2c1, 0x44<<1, buff, 6,1000);
	t_ticks = buff[0] * 256 + buff[1];
	//checksum_t = rx_bytes[2]
	rh_ticks = buff[3] * 256 + buff[4];
	//checksum_rh = rx_bytes[5]
	t_degC = -45 + 175 * t_ticks/65535;
	rh_pRH = -6 + 125 * rh_ticks/65535;
	if (rh_pRH > 100)
	rh_pRH = 100;
	if (rh_pRH < 0)
	rh_pRH = 0;

	*temp = t_degC;
	*humi = rh_pRH;
	//printf("temp:%f, himidity:%f\n", t_degC, rh_pRH);
	}

	#ifndef __SHT40_H__
	#define __SHT40_H__
	#include "main.h"
	extern I2C_HandleTypeDef hi2c1;


	void sht40_get_th_data(float* temp, float* humi);

	#endif

	#MicroXplorer Configuration settings - do not modify
	CAD.formats=
	CAD.pinconfig=
	CAD.provider=
	Dma.Request0=SPI1_TX
	Dma.RequestsNb=1
	Dma.SPI1_TX.0.Direction=DMA_MEMORY_TO_PERIPH
	Dma.SPI1_TX.0.Instance=DMA1_Channel3
	Dma.SPI1_TX.0.MemDataAlignment=DMA_MDATAALIGN_BYTE
	Dma.SPI1_TX.0.MemInc=DMA_MINC_ENABLE
	Dma.SPI1_TX.0.Mode=DMA_NORMAL
	Dma.SPI1_TX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
	Dma.SPI1_TX.0.PeriphInc=DMA_PINC_DISABLE
	Dma.SPI1_TX.0.Priority=DMA_PRIORITY_LOW
	Dma.SPI1_TX.0.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
	File.Version=6
	GPIO.groupedBy=Group By Peripherals
	KeepUserPlacement=false
	Mcu.CPN=STM32F103C8T6
	Mcu.Family=STM32F1
	Mcu.IP0=DMA
	Mcu.IP1=I2C1
	Mcu.IP2=NVIC
	Mcu.IP3=RCC
	Mcu.IP4=SPI1
	Mcu.IP5=SYS
	Mcu.IP6=TIM2
	Mcu.IP7=TIM3
	Mcu.IPNb=8
	Mcu.Name=STM32F103C(8-B)Tx
	Mcu.Package=LQFP48
	Mcu.Pin0=PD0-OSC_IN
	Mcu.Pin1=PD1-OSC_OUT
	Mcu.Pin10=PB7
	Mcu.Pin11=VP_SYS_VS_Systick
	Mcu.Pin12=VP_TIM2_VS_ClockSourceINT
	Mcu.Pin2=PA5
	Mcu.Pin3=PA7
	Mcu.Pin4=PA13
	Mcu.Pin5=PA14
	Mcu.Pin6=PB3
	Mcu.Pin7=PB4
	Mcu.Pin8=PB5
	Mcu.Pin9=PB6
	Mcu.PinsNb=13
	Mcu.ThirdPartyNb=0
	Mcu.UserConstants=
	Mcu.UserName=STM32F103C8Tx
	MxCube.Version=6.12.0
	MxDb.Version=DB.6.0.120
	NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.DMA1_Channel3_IRQn=true\:0\:0\:false\:false\:true\:false\:true\:true
	NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.EXTI3_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
	NVIC.ForceEnableDMAVector=true
	NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.PendSV_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
	NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:false\:true\:false
	NVIC.TIM2_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
	NVIC.TIM3_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
	NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
	PA13.Mode=Serial_Wire
	PA13.Signal=SYS_JTMS-SWDIO
	PA14.Mode=Serial_Wire
	PA14.Signal=SYS_JTCK-SWCLK
	PA5.Mode=Simplex_Bidirectional_Master
	PA5.Signal=SPI1_SCK
	PA7.Mode=Simplex_Bidirectional_Master
	PA7.Signal=SPI1_MOSI
	PB3.GPIOParameters=GPIO_PuPd,GPIO_Label,GPIO_ModeDefaultEXTI
	PB3.GPIO_Label=RT_SW
	PB3.GPIO_ModeDefaultEXTI=GPIO_MODE_IT_FALLING
	PB3.GPIO_PuPd=GPIO_PULLUP
	PB3.Locked=true
	PB3.Signal=GPXTI3
	PB4.Signal=S_TIM3_CH1
	PB5.Signal=S_TIM3_CH2
	PB6.Mode=I2C
	PB6.Signal=I2C1_SCL
	PB7.Mode=I2C
	PB7.Signal=I2C1_SDA
	PD0-OSC_IN.Mode=HSE-External-Oscillator
	PD0-OSC_IN.Signal=RCC_OSC_IN
	PD1-OSC_OUT.Mode=HSE-External-Oscillator
	PD1-OSC_OUT.Signal=RCC_OSC_OUT
	PinOutPanel.RotationAngle=0
	ProjectManager.AskForMigrate=true
	ProjectManager.BackupPrevious=false
	ProjectManager.CompilerOptimize=6
	ProjectManager.ComputerToolchain=false
	ProjectManager.CoupleFile=false
	ProjectManager.CustomerFirmwarePackage=
	ProjectManager.DefaultFWLocation=true
	ProjectManager.DeletePrevious=true
	ProjectManager.DeviceId=STM32F103C8Tx
	ProjectManager.FirmwarePackage=STM32Cube FW_F1 V1.8.6
	ProjectManager.FreePins=false
	ProjectManager.HalAssertFull=false
	ProjectManager.HeapSize=0x200
	ProjectManager.KeepUserCode=true
	ProjectManager.LastFirmware=true
	ProjectManager.LibraryCopy=1
	ProjectManager.MainLocation=Core/Src
	ProjectManager.NoMain=false
	ProjectManager.PreviousToolchain=
	ProjectManager.ProjectBuild=false
	ProjectManager.ProjectFileName=WS2812_F103.ioc
	ProjectManager.ProjectName=WS2812_F103
	ProjectManager.ProjectStructure=
	ProjectManager.RegisterCallBack=
	ProjectManager.StackSize=0x400
	ProjectManager.TargetToolchain=STM32CubeIDE
	ProjectManager.ToolChainLocation=
	ProjectManager.UAScriptAfterPath=
	ProjectManager.UAScriptBeforePath=
	ProjectManager.UnderRoot=true
	ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_SPI1_Init-SPI1-false-HAL-true,5-MX_I2C1_Init-I2C1-false-HAL-true,6-MX_TIM2_Init-TIM2-false-HAL-true,7-MX_TIM3_Init-TIM3-false-HAL-true
	RCC.ADCFreqValue=20000000
	RCC.AHBFreq_Value=40000000
	RCC.APB1CLKDivider=RCC_HCLK_DIV2
	RCC.APB1Freq_Value=20000000
	RCC.APB1TimFreq_Value=40000000
	RCC.APB2Freq_Value=40000000
	RCC.APB2TimFreq_Value=40000000
	RCC.FCLKCortexFreq_Value=40000000
	RCC.FamilyName=M
	RCC.HCLKFreq_Value=40000000
	RCC.IPParameters=ADCFreqValue,AHBFreq_Value,APB1CLKDivider,APB1Freq_Value,APB1TimFreq_Value,APB2Freq_Value,APB2TimFreq_Value,FCLKCortexFreq_Value,FamilyName,HCLKFreq_Value,MCOFreq_Value,PLLCLKFreq_Value,PLLMCOFreq_Value,PLLMUL,PLLSourceVirtual,SYSCLKFreq_VALUE,SYSCLKSource,TimSysFreq_Value,USBFreq_Value,VCOOutput2Freq_Value
	RCC.MCOFreq_Value=40000000
	RCC.PLLCLKFreq_Value=40000000
	RCC.PLLMCOFreq_Value=20000000
	RCC.PLLMUL=RCC_PLL_MUL5
	RCC.PLLSourceVirtual=RCC_PLLSOURCE_HSE
	RCC.SYSCLKFreq_VALUE=40000000
	RCC.SYSCLKSource=RCC_SYSCLKSOURCE_PLLCLK
	RCC.TimSysFreq_Value=40000000
	RCC.USBFreq_Value=40000000
	RCC.VCOOutput2Freq_Value=8000000
	SH.GPXTI3.0=GPIO_EXTI3
	SH.GPXTI3.ConfNb=1
	SH.S_TIM3_CH1.0=TIM3_CH1,Encoder_Interface
	SH.S_TIM3_CH1.ConfNb=1
	SH.S_TIM3_CH2.0=TIM3_CH2,Encoder_Interface
	SH.S_TIM3_CH2.ConfNb=1
	SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_16
	SPI1.CalculateBaudRate=2.5 MBits/s
	SPI1.Direction=SPI_DIRECTION_1LINE
	SPI1.IPParameters=VirtualType,Mode,Direction,BaudRatePrescaler,CalculateBaudRate
	SPI1.Mode=SPI_MODE_MASTER
	SPI1.VirtualType=VM_MASTER
	TIM2.IPParameters=Prescaler,Period
	TIM2.Period=1000-1
	TIM2.Prescaler=2000-1
	TIM3.EncoderMode=TIM_ENCODERMODE_TI12
	TIM3.IC1Polarity=TIM_ICPOLARITY_FALLING
	TIM3.IC2Polarity=TIM_ICPOLARITY_FALLING
	TIM3.IPParameters=EncoderMode,IC1Polarity,IC2Polarity
	VP_SYS_VS_Systick.Mode=SysTick
	VP_SYS_VS_Systick.Signal=SYS_VS_Systick
	VP_TIM2_VS_ClockSourceINT.Mode=Internal
	VP_TIM2_VS_ClockSourceINT.Signal=TIM2_VS_ClockSourceINT
	board=custom
	isbadioc=false

prettyprint

2024年9月21日 星期六

STM32 HAL || Large 7-Segment LED with WS2812 || Rotary Encoder || STM32F103C8T6

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2024年9月21日星期六