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RS485 的代码
rs485.h
/*
* (C) Copyright 2003
* Martin Krause, TQ-Systems GmbH,
*
* Based on cpu/arm920t/serial.c, by Gary Jennejohn
* (C) Copyright 2002 Gary Jennejohn, DENX Software Engineerin
tvup.plm
/* filename: tvup.plm */
/* 主机通过RS485巡检40路分机 */
start:do;
$include(reg51.dcl)
declare (data,DAT,ADDRL,n,I,j,k,waittime,sdflag,sdcount) byte;
declare a(40) byte;
declare l(10) byte;
de
rs485.c
/*
* (C) Copyright 2003
* Martin Krause, TQ-Systems GmbH,
*
* Based on cpu/arm920t/serial.c, by Gary Jennejohn
* (C) Copyright 2002 Gary Jennejohn, DENX Software Engineerin
rs485.h
/*
* (C) Copyright 2003
* Martin Krause, TQ-Systems GmbH,
*
* Based on cpu/arm920t/serial.c, by Gary Jennejohn
* (C) Copyright 2002 Gary Jennejohn, DENX Software Engineerin
tvup.plm
/* filename: tvup.plm */
/* 主机通过RS485巡检40路分机 */
start:do;
$include(reg51.dcl)
declare (data,DAT,ADDRL,n,I,j,k,waittime,sdflag,sdcount) byte;
declare a(40) byte;
declare l(10) byte;
de
tstrs485.c
//*********************************************************************************
// TsRs485.c
//
// Test of RS485 network protocol
//
//
// Version 1.0 beta
//
// Proc
rs485.h
#separate
char Rs485Process(void);
void Rs485Initialise(char cAddrHigh, char cAddrLow);
#separate
char Rs485Decode( void );
void Rs485UpdateCrc(char cVal );
void CRC16_Init( void );
void CRC16_
rs485.h
#separate
char Rs485Process(void);
void Rs485Initialise(char cAddrHigh, char cAddrLow);
#separate
char Rs485Decode( void );
void Rs485UpdateCrc(char cVal );
void CRC16_Init( void );
void CRC16_
rs485.c
#include "config.h"
#define TR 1
rs485.h
void RS485_Init (uint32 UART_BPS);
uint8 RS485_GetByte (void);
void RS485_GetStr (uint8 *s, uint32 n);
void RS485_SendByte (uint8 dat);
void RS485_SendStr (char *str);