STM32F407ZGT6标准库工程模板
资源内容介绍
STM32F407ZGT6是一款基于ARM Cortex-M4内核的微控制器，由意法半导体（STMicroelectronics）生产。它广泛应用于嵌入式系统设计，尤其是在物联网、工业控制、消费电子等领域。这款芯片的特点是高性能、低功耗，并集成了浮点运算单元（FPU），支持复杂的数学运算。工程模板是开发STM32应用的基础，它为开发者提供了一个预先配置好的项目结构，包括必要的头文件、源文件、链接器脚本和编译设置，以便快速搭建开发环境。STM32F407ZGT6的标准库工程模板则是专为这款芯片定制的，遵循了意法半导体官方的HAL（Hardware Abstraction Layer）或LL（Low-Layer）库规范，使开发者能更容易地访问和控制芯片的各种外设。在提供的工程模板中，包含了以下几个关键知识点：1. **点灯程序**：这是学习任何微控制器基础的第一步，通过控制GPIO（General Purpose Input/Output）引脚来点亮或熄灭LED灯。STM32F407ZGT6拥有丰富的GPIO接口，模板中的点灯函数展示了如何配置GPIO模式、速度和推挽输出，以及如何写入或读取GPIO状态。2. **延时函数**：在嵌入式编程中，延时功能用于实现定时或者间隔操作。通常，延时函数是通过循环计数或者使用定时器来实现的。STM32的标准库提供了延时函数，如HAL_Delay，开发者可以调用这些函数在程序中添加精确的延迟。3. **串口通信**：UART（Universal Asynchronous Receiver/Transmitter）是一种常见的串行通信接口，用于设备间的通信。在工程模板中，串口收发测试部分展示了如何配置STM32的USART（Universal Synchronous/Asynchronous Receiver/Transmitter）外设，进行数据发送和接收，这对于调试和其他通信需求至关重要。4. **HAL和LL库**：STM32的标准库包括了HAL和LL库，它们提供了抽象层，使得开发者可以不用关心底层硬件细节，更专注于应用程序的编写。HAL库提供了一种面向对象的编程方式，而LL库则更接近硬件，代码效率更高，适合对性能有严格要求的应用。5. **工程配置**：工程模板中的Makefile或IDE项目设置，预设了正确的编译器选项、链接器脚本和包含路径，确保了代码能正确编译和链接。对于新手，这减少了设置环境的复杂性。6. **调试支持**：模板可能还包含了调试配置，如JTAG或SWD接口设置，方便使用调试器进行程序的调试和分析。掌握这些基本功能后，开发者可以在此基础上扩展功能，如添加更多外设驱动、网络协议栈、实时操作系统等，构建复杂的应用系统。STM32F407ZGT6标准库工程模板是一个理想的起点，它帮助开发者快速上手STM32的开发，节省了大量时间，提高了开发效率。 /** ****************************************************************************** * @file stm32f4xx_tim.c * @author MCD Application Team * @version V1.4.0 * @date 04-August-2014 * @brief This file provides firmware functions to manage the following * functionalities of the TIM peripheral: * + TimeBase management * + Output Compare management * + Input Capture management * + Advanced-control timers (TIM1 and TIM8) specific features * + Interrupts, DMA and flags management * + Clocks management * + Synchronization management * + Specific interface management * + Specific remapping management * @verbatim =============================================================================== ##### How to use this driver ##### =============================================================================== [..] This driver provides functions to configure and program the TIM of all STM32F4xx devices. These functions are split in 9 groups: (#) TIM TimeBase management: this group includes all needed functions to configure the TM Timebase unit: (++) Set/Get Prescaler (++) Set/Get Autoreload (++) Counter modes configuration (++) Set Clock division (++) Select the One Pulse mode (++) Update Request Configuration (++) Update Disable Configuration (++) Auto-Preload Configuration (++) Enable/Disable the counter (#) TIM Output Compare management: this group includes all needed functions to configure the Capture/Compare unit used in Output compare mode: (++) Configure each channel, independently, in Output Compare mode (++) Select the output compare modes (++) Select the Polarities of each channel (++) Set/Get the Capture/Compare register values (++) Select the Output Compare Fast mode (++) Select the Output Compare Forced mode (++) Output Compare-Preload Configuration (++) Clear Output Compare Reference (++) Select the OCREF Clear signal (++) Enable/Disable the Capture/Compare Channels (#) TIM Input Capture management: this group includes all needed functions to configure the Capture/Compare unit used in Input Capture mode: (++) Configure each channel in input capture mode (++) Configure Channel1/2 in PWM Input mode (++) Set the Input Capture Prescaler (++) Get the Capture/Compare values (#) Advanced-control timers (TIM1 and TIM8) specific features (++) Configures the Break input, dead time, Lock level, the OSSI, the OSSR State and the AOE(automatic output enable) (++) Enable/Disable the TIM peripheral Main Outputs (++) Select the Commutation event (++) Set/Reset the Capture Compare Preload Control bit (#) TIM interrupts, DMA and flags management (++) Enable/Disable interrupt sources (++) Get flags status (++) Clear flags/ Pending bits (++) Enable/Disable DMA requests (++) Configure DMA burst mode (++) Select CaptureCompare DMA request (#) TIM clocks management: this group includes all needed functions to configure the clock controller unit: (++) Select internal/External clock (++) Select the external clock mode: ETR(Mode1/Mode2), TIx or ITRx (#) TIM synchronization management: this group includes all needed functions to configure the Synchronization unit: (++) Select Input Trigger (++) Select Output Trigger (++) Select Master Slave Mode (++) ETR Configuration when used as external trigger (#) TIM specific interface management, this group includes all needed functions to use the specific TIM interface: (++) Encoder Interface Configuration (++) Select Hall Sensor (#) TIM specific remapping management includes the Remapping configuration of specific timers @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> * * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); * You may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.st.com/software_license_agreement_liberty_v2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ****************************************************************************** */#include "stm32f4xx_tim.h"#include "stm32f4xx_rcc.h"/** @addtogroup STM32F4xx_StdPeriph_Driver * @{ *//** @defgroup TIM * @brief TIM driver modules * @{ */#define SMCR_ETR_MASK ((uint16_t)0x00FF) #define CCMR_OFFSET ((uint16_t)0x0018)#define CCER_CCE_SET ((uint16_t)0x0001) #define CCER_CCNE_SET ((uint16_t)0x0004) #define CCMR_OC13M_MASK ((uint16_t)0xFF8F)#define CCMR_OC24M_MASK ((uint16_t)0x8FFF) static void TI1_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter);static void TI2_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter);static void TI3_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter);static void TI4_Config(TIM_TypeDef* TIMx, uint16_t TIM_ICPolarity, uint16_t TIM_ICSelection, uint16_t TIM_ICFilter);/** @defgroup TIM_Private_Functions * @{ *//** @defgroup TIM_Group1 TimeBase management functions * @brief TimeBase management functions *@verbatim =============================================================================== ##### TimeBase management functions ##### =============================================================================== ##### TIM Driver: how to use it in Timing(Time base) Mode ##### =============================================================================== [..] To use the Timer in Timing(Time base) mode, the following steps are mandatory: (#) Enable TIM clock using RCC_APBxPeriphClockCmd(RCC_APBxPeriph_TIMx, ENABLE) function (#) Fill the TIM_TimeBaseInitStruct with the desired parameters. (#) C