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Modbus 的代码
modbus.lst
HI-TECH Software PICC Macro Assembler V8.05PL1
Serial number: HCPIC-90508 Sat Nov 10 13:01:05 2007
Licensed to: ONE
1 processor 16F6
mod_rssim_home.htm
Modbus RTU Simulator Help
modbus slave_uv2.bak
### uVision2 Project, (C) Keil Software
### Do not modify !
Target (Target 1), 0x0000 // Tools: 'MCS-51'
Group (Source Group 1)
File 1,2, 0x0
File 1,1,
modbus slave.m51
BL51 BANKED LINKER/LOCATER V6.00 03/26/2007 20:26:47 PAGE 1
BL51 BANKED LINKER/LOCATER V6.00, INVOKED BY:
C:\PROGRAM FILES\KEIL\C51\BIN\B
mbcrc.h
#ifndef __MBCRC_H__
#define __MBCRC_H__
extern unsigned int usMBCRC16( unsigned char * pucFrame, unsigned char usLen );//modbus crc 函数
#endif
modbus.c
#include "reg52.h"
#include
//类型定义
typedef unsigned char uchar;
typedef unsigned int uint;
typedef unsigned long ulong;
sbit E485=P3^2; //max485发送允许
uchar *pushMsg; /*要进行C
modbus slave.uv2
### uVision2 Project, (C) Keil Software
### Do not modify !
Target (Target 1), 0x0000 // Tools: 'MCS-51'
Group (Source Group 1)
File 1,2, 0x0
File 1,1,
modbus.lst
C51 COMPILER V8.01 MODBUS 03/26/2007 20:26:46 PAGE 1
C51 COMPILER V8.01, COMPILATION OF MODULE MODBUS
OBJECT MODULE PLACED IN
说明.txt
1 DIANJI是通过对温度检测控制三相异步电机 包含液晶12864的程序
2 <mark>MODBUS</mark>是一个<mark>MODBUS</mark>程序块 所有符合<mark>MODBUS</mark>（RTU模式）的设备都可以和S51通讯
3 PS22C是对符合PS2协议的设备进行监听 获取数据
4 DISPLAY是模仿MAX7219 SPI时序 驱动LED
5 NIUJU1是通过对电压 电流 速度 有功功率的检测算出扭矩. ...
maintest.c
#include "ModBus.h"
void main(void)
{
init_serial();
init_proc_rxd();
while(1)
{
process_rxd();
}
}