In order to realize the data transparent mutual transmission function between the Ethernet network port and the RS422 target device,a network port to serial port tooling is designed.The tooling uses STM32F407ZGT6 microcontroller as the main controller,designs RS422 interface circuit.The test results prove that the device can realize two-way mutual transmission between the network port and the serial port,the baud rate of the serial port can reach 3 Mb/s,and the data is sent and received within 13 hours without packet loss,and has strong working performance and reliability.
Key words
high-baud rate /
Ethernet /
RS422 /
transparent mutual transmission /
STM32F407ZGT6
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