代码搜索：modbus rtu 通信

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热门代码： main.c GPIO I2C SPI UART timer interrupt ADC PWM LED
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pdf modbus.pdf

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www.eeworm.com/read/220978/14781072

pdf modbus协议.pdf

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www.eeworm.com/read/115366/15016164

c modbus.c

//第一步成功，可以通讯，记住：P1.3 为0输出485，为1输入485 //拨特率正确，中断正确 //串口1为仪表串口，串口2为实际MODBUS串口 //模拟量地址范围0000----0008 共8个数据，长度按前后减 #include #define modbus_delay 10000 //读继电器 #def
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www.eeworm.com/read/216058/15027981

doc modbus.doc

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www.eeworm.com/read/215102/15075154

h modbus.h

#include "class.h" #include "extern.h" static INT8U auchhi[] = { 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC
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www.eeworm.com/read/215102/15075167

cpp modbus.cpp

#include "modbus.h" //#include "extern.h" #define READ_DI 0x02 #define READWORD 0x03 #define READ_AI 0x04 #define SET_COIL 0x05 void CModbus::send_yxyc() { INT16U temp; askb
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www.eeworm.com/read/215102/15075171

obj modbus.obj

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www.eeworm.com/read/213470/15134215

dcu modbus.dcu

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www.eeworm.com/read/211777/15173927

class modbus.class

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www.eeworm.com/read/7666/127107

c modbus.c

#include #include #include #define uchar unsigned char #define uint unsigned int #define ulong unsigned long /* CRC 高位字节值表 */ static uchar code
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