1.概述
欲先善其事，必先利其器。开发应用程序的基础就是基于底层硬件驱动的实现，欲先修炼如来神掌，必先打通任督二脉^_^，本文将说明基于uFun开发板板载资源的硬件调试测试和运行，为后期的实现应用层打好基础。
2.硬件准备
2.1.uFun开发板及其它
说明：
uFun开发板、调试烧录工具使用J-LINK V9.6，使用SWD接口、示波器等。
2.2.uFun开发板板载资源分配
说明：
根据uFun开发板的原理图，再结合MCU的引脚资源，对uFun开发板板载资源进行设计规划；在后期的实际调试中PWM_R和PWM_G的硬件对调了，所以如上图中的更正了一下。
3.STM32CubeMX设置
3.1.RCC设置如下图，根据原理图得。
3.2.SYS设置如下图，将Debug选择Serial Wire，即为SWD接口调试。
3.3.ADC设置如下图，配置AD_SIG1和AD_SIG2，分别为ADC1的IN12和IN13，ADC的数据采集使用DMA方式，启动ADC转换后，MCU自动完成。
3.4.TIM1设置如下图，使用TIM1的Channel1产生1kHz的PWM波形驱动无源蜂鸣器发出声音。
3.5.TIM4设置如下图，使用TIM4的Channel3和Channel4这两个通道产生频率为1kHz，点空比为50%的PWM波形输出，通过示波器测量PWMCH1和PWMCH2的输出波形。
3.6.TIM5设置如下图，使用TIM5的Channel1、Channel2和Channel3这3个通道生产PWM波形输出，通过控制输出PWM波形的点空比来控制RGB灯的显示颜色。
3.7.TIM6设置如下图，使用TIM6的计数中断功能，给系统运行的时间根本提供时间基准，每间隔1ms产生一次中断。
3.8.USART1设置如下图，使用USART1通过USB转串口芯片CH340与PC实现数据通讯。
3.9.I2C设置如下图，使用I2C1串行总线与传感器进行数据通讯。
3.10.GPIO设置如下图，将LED的控制引脚配置为输出，将按键KEY的控制引脚配置为输入。
4.主要程序
/** ****************************************************************************** * @file uFun.c * @version V1.00 * @author xld0932 * @brief ****************************************************************************** * @attention * * Copyright (c) 2019. All rights reserved. * ****************************************************************************** */ /* Define to prevent recursive inclusion -------------------------------------*/ #define __UFUN_C__ /* Includes ------------------------------------------------------------------*/ #include "uFun.h" /* Private constants ---------------------------------------------------------*/ /* Private defines -----------------------------------------------------------*/ /* Private typedef -----------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ #define uFUN_RGB(r,g,b) {TIM5->CCR1 = (g); TIM5->CCR2 = (r); TIM5->CCR3 = (b);} /* Private variables ---------------------------------------------------------*/ ADC_HandleTypeDef hadc1; DMA_HandleTypeDef hdma_adc1; I2C_HandleTypeDef hi2c1; TIM_HandleTypeDef htim1; TIM_HandleTypeDef htim4; TIM_HandleTypeDef htim5; TIM_HandleTypeDef htim6; UART_HandleTypeDef huart1; /* Private variables ---------------------------------------------------------*/ static volatile uint32_t ADC_Value[100]; /* Private function prototypes -----------------------------------------------*/ /* Exported variables --------------------------------------------------------*/ /* Exported function prototypes ----------------------------------------------*/ extern void HAL_TIM_MspPostInit(TIM_HandleTypeDef *htim); /** * @brief : ADC1 Initialization Function * @param : * @returns: * @details: */ static void MX_ADC1_Init(void) { ADC_ChannelConfTypeDef sConfig = {0}; /** * Common config */ hadc1.Instance = ADC1; hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE; hadc1.Init.ContinuousConvMode = ENABLE; hadc1.Init.DiscontinuousConvMode = DISABLE; hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.NbrOfConversion = 2; if (HAL_ADC_Init(&hadc1) != HAL_OK) { } /** * Configure Regular Channel */ sConfig.Channel = ADC_CHANNEL_12; sConfig.Rank = ADC_REGULAR_RANK_1; sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { } /** * Configure Regular Channel */ sConfig.Channel = ADC_CHANNEL_13; sConfig.Rank = ADC_REGULAR_RANK_2; sConfig.SamplingTime = ADC_SAMPLETIME_1CYCLE_5; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { } HAL_ADC_Start_DMA(&hadc1, (uint32_t *)&ADC_Value, 100); } /** * @brief : Enable DMA controller clock * @param : * @returns: * @details: */ static void MX_DMA_Init(void) { /* DMA controller clock enable */ __HAL_RCC_DMA1_CLK_ENABLE(); /* DMA interrupt init */ /* DMA1_Channel1_IRQn interrupt configuration */ HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 0, 0); HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn); } /** * @brief : I2C1 Initialization Function * @param : * @returns: * @details: */ static void MX_I2C1_Init(void) { 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) { } } /** * @brief : TIM1 Initialization Function * @param : * @returns: * @details: PWM 1kHz For BEEP */ static void MX_TIM1_Init(void) { TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0}; TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0}; htim1.Instance = TIM1; htim1.Init.Prescaler = 72-1; htim1.Init.CounterMode = TIM_COUNTERMODE_UP; htim1.Init.Period = 1000-1; htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim1.Init.RepetitionCounter = 0; htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_PWM_Init(&htim1) != HAL_OK) { } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK) { } sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 500; sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH; sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET; sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET; if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1) != HAL_OK) { } sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE; sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE; sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF; sBreakDeadTimeConfig.DeadTime = 0; sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE; sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH; sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE; if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK) { } HAL_TIM_MspPostInit(&htim1); } /** * @brief : TIM4 Initialization Function * @param : * @returns: * @details: PWM 1kHz for PWMCH1 & PWMCH2 */ static void MX_TIM4_Init(void) { TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0}; htim4.Instance = TIM4; htim4.Init.Prescaler = 72-1; htim4.Init.CounterMode = TIM_COUNTERMODE_UP; htim4.Init.Period = 1000-1; htim4.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim4.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_PWM_Init(&htim4) != HAL_OK) { } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim4, &sMasterConfig) != HAL_OK) { } sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 500; sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; if (HAL_TIM_PWM_ConfigChannel(&htim4, &sConfigOC, TIM_CHANNEL_3) != HAL_OK) { } if (HAL_TIM_PWM_ConfigChannel(&htim4, &sConfigOC, TIM_CHANNEL_4) != HAL_OK) { } HAL_TIM_MspPostInit(&htim4); } /** * @brief : TIM5 Initialization Function * @param : * @returns: * @details: PWM 1kHz for RGB */ static void MX_TIM5_Init(void) { TIM_MasterConfigTypeDef sMasterConfig = {0}; TIM_OC_InitTypeDef sConfigOC = {0}; htim5.Instance = TIM5; htim5.Init.Prescaler = 72-1; htim5.Init.CounterMode = TIM_COUNTERMODE_UP; htim5.Init.Period = 256-1; htim5.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim5.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_PWM_Init(&htim5) != HAL_OK) { } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim5, &sMasterConfig) != HAL_OK) { } sConfigOC.OCMode = TIM_OCMODE_PWM1; sConfigOC.Pulse = 8; sConfigOC.OCPolarity = TIM_OCPOLARITY_LOW; sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; if (HAL_TIM_PWM_ConfigChannel(&htim5, &sConfigOC, TIM_CHANNEL_1) != HAL_OK) { } if (HAL_TIM_PWM_ConfigChannel(&htim5, &sConfigOC, TIM_CHANNEL_2) != HAL_OK) { } if (HAL_TIM_PWM_ConfigChannel(&htim5, &sConfigOC, TIM_CHANNEL_3) != HAL_OK) { } HAL_TIM_MspPostInit(&htim5); HAL_TIM_PWM_Start(&htim5, TIM_CHANNEL_1); HAL_TIM_PWM_Start(&htim5, TIM_CHANNEL_2); HAL_TIM_PWM_Start(&htim5, TIM_CHANNEL_3); } /** * @brief : TIM6 Initialization Function : 1ms * @param : * @returns: * @details: For System Run Tick */ static void MX_TIM6_Init(void) { TIM_MasterConfigTypeDef sMasterConfig = {0}; htim6.Instance = TIM6; htim6.Init.Prescaler = 72-1; htim6.Init.CounterMode = TIM_COUNTERMODE_UP; htim6.Init.Period = 1000-1; htim6.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_ENABLE; if (HAL_TIM_Base_Init(&htim6) != HAL_OK) { } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim6, &sMasterConfig) != HAL_OK) { } if (HAL_TIM_Base_Start_IT(&htim6) != HAL_OK) { } } /** * @brief : USART1 Initialization Function * @param : * @returns: * @details: */ static void MX_USART1_UART_Init(void) { huart1.Instance = USART1; huart1.Init.BaudRate = 115200; huart1.Init.WordLength = UART_WORDLENGTH_8B; huart1.Init.StopBits = UART_STOPBITS_1; huart1.Init.Parity = UART_PARITY_NONE; huart1.Init.Mode = UART_MODE_TX_RX; huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart1.Init.OverSampling = UART_OVERSAMPLING_16; if (HAL_UART_Init(&huart1) != HAL_OK) { } SET_BIT(huart1.Instance->CR1, USART_CR1_PEIE | USART_CR1_RXNEIE); } /** * @brief : GPIO Initialization Function * @param : * @returns: * @details: */ static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; /* GPIO Ports Clock Enable */ __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); /*Configure GPIO pins : KEY1_Pin KEY0_Pin */ GPIO_InitStruct.Pin = KEY1_Pin | KEY0_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); /*Configure GPIO pins : KEY2_Pin KEY3_Pin G_INT_Pin */ GPIO_InitStruct.Pin = KEY2_Pin | KEY3_Pin | G_INT_Pin; GPIO_InitStruct.Mode = GPIO_MODE_INPUT; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); /*Configure GPIO pin Output Level */ HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_SET); /*Configure LED GPIO pin : PA3 */ GPIO_InitStruct.Pin = LED_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(LED_GPIO_Port, &GPIO_InitStruct); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_Init(void) { uint8_t flag = 0; /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_ADC1_Init(); if(flag) MX_I2C1_Init(); MX_TIM1_Init(); MX_TIM4_Init(); MX_TIM5_Init(); MX_TIM6_Init(); MX_USART1_UART_Init(); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestBEEP(void) { HAL_TIM_PWM_Start(&htim1, TIM_CHANNEL_1); HAL_Delay(250); HAL_TIM_PWM_Stop(&htim1, TIM_CHANNEL_1); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestPWMn(void) { HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_3); HAL_TIM_PWM_Start(&htim4, TIM_CHANNEL_4); HAL_Delay(1000); HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_3); HAL_TIM_PWM_Stop(&htim4, TIM_CHANNEL_4); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestRGB(void) { uFUN_RGB(255, 0, 0); HAL_Delay(500); uFUN_RGB(0, 255, 0); HAL_Delay(500); uFUN_RGB(0, 0, 255); HAL_Delay(500); uFUN_RGB(16, 16, 16); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestLED(void) { uint8_t i = 0; for(i = 0; i < 10; i++) { if((i % 2) == 0) { HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_RESET); //---ON } else { HAL_GPIO_WritePin(LED_GPIO_Port, LED_Pin, GPIO_PIN_SET); //---OFF } HAL_Delay(100); } } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestADC(void) { uint32_t i = 0, AD_SIG1 = 0, AD_SIG2 = 0; for(i = 0; i < 100;) { AD_SIG1 += ADC_Value[i++]; AD_SIG2 += ADC_Value[i++]; } AD_SIG1 /= 50; AD_SIG2 /= 50; printf("%d, %d\r\n", AD_SIG1, AD_SIG2); } /** * @brief : * @param : * @returns: * @details: */ void uFUN_TestI2C(void) { } /** * @brief : * @param : * @returns: * @details: */ void uFUN_Test(void) { printf("\r\n----------uFun Hardware Test----------\r\n"); printf("Test BEEP\r\n"); uFUN_TestBEEP(); printf("Test PWM\r\n"); uFUN_TestPWMn(); printf("Test LED\r\n"); uFUN_TestLED(); printf("Test RGB\r\n"); uFUN_TestRGB(); printf("Test ADC :: "); uFUN_TestADC(); printf("Test I2C\r\n"); uFUN_TestI2C(); printf("--------------------------------------\r\n\r\n"); } /************************ (C) COPYRIGHT ************************END OF FILE****/
复制代码5.运行结果
6.工程代码
CubeMX.rar
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