代码搜索：如何学习 UART？
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www.eeworm.com/read/472384/6876514
h uart.h
#ifndef __SPI_H__
#define __SPI_H__
typedef unsigned char U8; /* 无符号8位整型变量 */
typedef signed char S8; /* 有符号8位整型变量 */
typedef unsigned short U16;
www.eeworm.com/read/472384/6876518
c uart.c
/****************************************Copyright (c)**************************************************
**
** 力天电子
** http://www.LT430.com
**作者：何呈
**文件名称：UART.C
**功能：实现串口
www.eeworm.com/read/472384/6876552
h uart.h
#ifndef __UART_H__
#define __UART_H__
#include "config.h"
#define USART_putchar UART0_PutChar
#define printf_P UART0_PutString
#define USART_getchar UART0_GetChar
void PLL_Init(void); //设
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c uart.c
/****************************************Copyright (c)**************************************************
**
** 力天电子
** http://www.LT430.com
**作者：何呈
**文件名称：UART.C
**功能：实现串口
www.eeworm.com/read/472384/6876578
h uart.h
#ifndef __UART_H__
#define __UART_H__
#include "config.h"
#define USART_putchar UART0_PutChar
#define printf_P UART0_PutString
#define USART_getchar UART0_GetChar
void PLL_Init(void); //设
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c uart.c
/****************************************Copyright (c)**************************************************
**
** 力天电子
** http://www.LT430.com
**作者：何呈
**文件名称：UART.C
**功能：实现串口
www.eeworm.com/read/471936/6884239
h uart.h
/* uart.h */
#ifndef UART_H
#define UART_H
#ifdef __cplusplus
extern "C"
{
#endif
// 奇偶校验标识
#define UART_BIT_9_H 0xA5
#define UART_BIT_9_L 0x5A
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c uart.c
#include "uart.h"
#include "hal.h"
#include "sys_event.h"
#include "pub_func.h"
#include "protocol.h"
// 数据桢指针
unsigned char _frm_ptr=0;
// 数据桢buffer
_t_frm _frm_buf;
// wait time
unsigned
www.eeworm.com/read/471941/6884304
h uart.h
/* uart.h */
#ifndef UART_H
#define UART_H
#ifdef __cplusplus
extern "C"
{
#endif
// 奇偶校验标识
#define UART_BIT_9_H 0xA5
#define UART_BIT_9_L 0x5A
www.eeworm.com/read/471941/6884311
c uart.c
#include "uart.h"
#include "hal.h"
#include "sys_event.h"
#include "pub_func.h"
#include "protocol.h"
// 数据桢指针
unsigned char _frm_ptr=0;
// 数据桢buffer
_t_frm _frm_buf;
// wait time
unsigned