{if('\n'==ch) {while(!(U1LSR &0x20)); U1THR=CR; }while(!(U1LSR &0x20));return(U1THR =ch); }voidsendhex(charhex) {inti =0;charhalf[2] = {0}; half[0] = hex >>4; half[1] = hex &0x0F; sendstr("0x");for(i =0; i <2; i++) {if(half[i] >9) sendchar(...
104 GucRcvNew = 1; /* 判断数据是否接收完毕 */ 105 while (UARTx->LSR & UART_LS_RX_DATA_READY) { 106 UART_Receive(TEST_UART, &GucRcvBuf[GulNum], 1, UART_NO_TIMEOUT); 107 GulNum++; 108 } 109 break; 110 111 default : 112 break; 113 } 114 } 115 } 116 117 #if (UART_POR...
if (LSRValue & (LSR_OE | LSR_PE | LSR_FE | LSR_RXFE | LSR_BI)) { Dummy = (uint8_t)LPC_USART0->RBR; // Dummy read on RX to clear interrupt return; } if (LSRValue & LSR_RDR) // Receive Data Ready { variable = ((uint8_t)LPC_USART0->RBR); ...
while (!(LPC_UART->LSR & 0x40)) ;LPC_UART->THR = data ; }}0 Kudos Reply All forum topics Previous Topic Next Topic 0 Replies Post Reply About NXP Careers Investors Media Contact My NXP Account Benefits Privacy Terms of Use Terms of Sale Modern Slavery Report Accessibility Website Feed...
NXP LPC17XX 串口接收发送中断(含RS485)最全面驱动程序(uart.h和uart.c).
LPC1700系列Cortex-M3微控制器 目 录 1 UART简介UART功能应用UART基本操作UART之IrDA 2 34 UART简介 通用异步收发器（UART）是实现设备间异步串行通信的关键模块，LPC1700系列ARM具有4个符合16C550工业标准的异步串口。16字节收发FIFO 内置小数分频器 支持DMA发送接收 UART1增加Modem和RS-485/EIA-485模式 UART0、...
LSR,SBIT_THRE)); // Wait for Previous transmission LPC_UART3->THR=ch; ...
Bit 3 – Framing Error(FE) :0 means no framing error has occured and 1 means that a framing error has taken place. Framing error occurs when the stop bit of a received character is zero. (Note:Reading U0LSR clears this bit) Bit 4 – Break Interrupt :0 means no Break Interrupt occure...
=2)?(LPC_UART_TypeDef)LPC_UART2_BASE:\ (LPC_UART_TypeDef*)LPC_UART3_BASE))) //串口收发线状态位控制(LSR寄存器). #defineRDR(uint8)(1<<0)) #defineLSROE((uint8)(1<<1)) #defineLSR_PE((uint)(1<<2)) #define_FE((uint8)(1<<3)) #defineLSR_...
TxD0RxD0 TxD0RxD0 其它通信设备 TxD0RxD0 232电平转换 TxD0RxD0 PC机串口 •UART0内部结构示意图 中断使能 TxD0 U0IIRU0IERU0THRU0LCRU0RBRU0TSRU0LSR 波特率设置 与CPU内核相连 U0DLMU0DLL RxD0 U0RSR VPB接口 U0FCR FIFO控制 1.在使用UART之前需要设置的寄存器 UART0格式设置 ...