Modbus communication protocol program, you can refer to sitting originality

CPU-STC
.......\CPU_Digital_Analog
.......\CPU_Digital_Analog.hex
.......\CPU_Digital_Analog.lnp
.......\CPU_Digital_Analog.M51
.......\CPU_Digital_Analog.uvopt
.......\CPU_Digital_Analog.uvproj
.......\CPU_Digital_Analog_main.c
.......\CPU_Digital_Analog_main.LST
.......\CPU_Digital_Analog_main.OBJ
.......\CPU_Digital_Analog_uvopt.bak
.......\CPU_Digital_Analog_uvproj.bak
.......\Data_Lib.c
.......\Data_Lib.h
.......\Data_Lib.LST
.......\Data_Lib.OBJ
.......\Digital_Analog_Control.c
.......\Digital_Analog_Control.h
.......\Digital_Analog_Control.LST
.......\Digital_Analog_Control.OBJ
.......\Digital_Analog_PC.c
.......\Digital_Analog_PC.h
.......\Digital_Analog_PC.LST
.......\Digital_Analog_PC.OBJ
.......\miscellaneous.c
.......\miscellaneous.h
.......\miscellaneous.LST
.......\miscellaneous.OBJ
.......\STARTUP.A51
.......\STARTUP.LST
.......\STARTUP.OBJ
.......\usart.c
.......\usart.h
.......\usart.LST
.......\usart.OBJ

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