89c52 89c51 system microcontroller serial 485 MODBUS RTU protocol the program, has passed the test

52通讯实验
52通讯实验\Debug
52通讯实验\Debug\vc60.idb
52通讯实验\Debug\vc60.pdb
52通讯实验\main.c
52通讯实验\main.h
52通讯实验\main.LST
52通讯实验\main.OBJ
52通讯实验\main.Opt
52通讯实验\main.Uv2
52通讯实验\main_Opt.Bak
52通讯实验\main_Uv2.Bak
52通讯实验\modbus.c
52通讯实验\modbus.dsp
52通讯实验\modbus.dsw
52通讯实验\modbus.h
52通讯实验\modbus.LST
52通讯实验\modbus.ncb
52通讯实验\modbus.OBJ
52通讯实验\modbus.opt
52通讯实验\modbus.plg
52通讯实验\modbus51
52通讯实验\modbus51.hex
52通讯实验\modbus51.lnp
52通讯实验\modbus51.M51
52通讯实验\modbus51.plg
52通讯实验\STARTUP.A51
52通讯实验\Startup.LST
52通讯实验\Startup.OBJ

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