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RS485 的代码
dbgrs485.java
package kfl;
/**
* Write Rs485 Data with timestamp to serial line.
*/
public class DbgRs485 {
public static final int IO_PORT = 0;
private static final int IO_UART = 2;
private static final int
ex1501.asm
;
; RS485 tester ( press and hold T0CKI to enable output )
;
; Transmit ASCII of 4x4 keys w/o display (by polling )
; Display received ASCII on LCD ( by Interrupt )
;
;
LIST P=16F877, R=DEC
rs485_com.c
//&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
//描述:
// 该程序INT0按键程序+显示程序+RS485通讯 &
// 每按一次，数码管1-2（自右向左）显示加1，并且发送数据到485
echors485.java
package kfl;
/**
* Rs232 - Rs485 router as stans alone program.
*/
public class EchoRs485 {
public static final int IO_PORT = 0;
private static final int IO_UART = 2;
private static final int I
使用说明.txt
1.BIN文件说明
IspInit.bin 直接把它烧入芯片。它已经包含了LDROM服务程序和APROM模式转换程序，目标板运行后，即可下载自己的应用程序
updatefm.bin APROM服务程序，用于更新产品固件
2.CPU引脚说明
P1.6 <mark>RS485</mark>数据方向控制使能端
P1.7 通讯指示灯
3.本程序只适合用在W78E58B芯片上,RS232/<mark>RS485</mark> ...
main.c
#include
#include
#include
#define uchar unsigned char
extern void serial_init(void);
extern RS485();
extern void delay0(uchar);
extern state();
void main(vo
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.frm
VERSION 5.00
Object = "{648A5603-2C6E-101B-82B6-000000000014}#1.1#0"; "MSCOMM32.OCX"
Begin VB.Form Form1
Caption = "RS485测试程序"
ClientHeight = 3585
ClientLeft = 60
rs485.frm
VERSION 5.00
Object = "{648A5603-2C6E-101B-82B6-000000000014}#1.1#0"; "MSCOMM32.OCX"
Begin VB.Form Form1
Caption = "RS485测试程序"
ClientHeight = 3585
ClientLeft = 60
rs485.c
/*******************************************************
RS485通信实验
网址:http://www.wejay.com.cn
注:跳线232/485连接左边的两端,以使MAX3490连接UART0
跳线RS48