如果用户要在中断中实现自己的逻辑代码,可以直接在函数 HAL_UART_IRQHandler 的前面或者后面添加新代码,也可以直接在HAL_UART_IRQHandler 调用的各种回调函数里面执行,这些回调都是弱定义的,方便用户直接在其它文件里面重定义。串口回调函数主要有下面几个: 本实验我们用到的是接收回调函数 HAL_UART_RxCpltCallback,就...
uint8_t my_uart1_redata=0;//开启串口接收中断voidmy_uart1_enable_inpterr(){//开启一次中断HAL_UART_Receive_IT(&huart1,&my_uart1_redata,1); }//串口收到数据回调voidHAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){if(huart->Instance == USART1)//判断串口号{//发送HAL_UART_Transmit(...
UART_IT_RXNE);//开启接收完成中断__HAL_UART_DISABLE_IT(huart,UART_IT_RXNE);//关闭接收完成中断voidUSART1_IRQHandler(void);//串口1中断服务函数//操作 USART_DR 寄存器发送数据的函数:HAL_StatusTypeDefHAL_UART_Transmit(UART_HandleTypeDef*h
Multiprocessor Communication：多机通信 基本参数配置：参数配置里面主要关注一下基本参数配置，其他的一些...
typedef struct __UART_HandleTypeDef { USART_TypeDef *Instance; /*!< UART registers base address */ UART_InitTypeDef Init; /*!< UART communication parameters */ UART_AdvFeatureInitTypeDef AdvancedInit; /*!< UART Advanced Features initialization parameters */ uint8_t *pTxBuffPtr; /*!< Pointer ...
Multiprocessor Communication 多处理器支持局域互连网络LIN、智能卡(SmartCard)协议与lrDA(红外线数据协议) SIR ENDEC规范。 Parity(校验位):可选无校验(None)、偶校验(Even)、奇校验(Odd) Stop Bits(停止位):可选1位、2位 Data Direction(数据传输方向):收发(Receive and Transmit)、只接收(Receive Only)、只发...
(8 or 9 bits) 10 interrupt sources with flags LIN mode SPI Master IrDA SIR ENDEC block Hardware flow control (CTS/RTS) Continuous communication using DMA Multiprocessor communication Single-wire half-duplex communication 2.10 I2C The STM32F446xx implements exact...
STM32HAL库之串口详细篇（基于HAL库）STM32HAL库之串⼝详细篇（基于HAL库）⼀、基础认识 (⼀) 并⾏通信 原理：数据的各个位同时传输 优点：速度快 缺点：占⽤引脚资源多，通常⼯作时有多条数据线进⾏数据传输 8bit数据传输典型连接图：传输的数据是⼆进制：11101010，则通信使⽤8条线同时进⾏...
DS13105 Rev 12 11/149 14 Description STM32WLE5/E4xx The devices also feature the following standard and advanced communication interfaces:two USARTs (supporting LIN, smartcard, IrDA, modem control and ISO7816), one low-power UART (LPUART), three I2Cs (SMBus/PMBus), two SPIs (up to 16...
Figure 1. The connection between USB to UART and STM32 MCU What is USART/ UART ? USART (Universal Synchronous/Asynchronous Receiver/Trasmitter) USART is a serial communication device that can support both synchronous and asynchronous communications. USART comes with an advantage with the additional ...