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5.1.1 Open Serial Port upgrade Software
Open serial port upgrade software HLK-RM58S_uart.exe, input lowercase string c, select
serial port number, select the corresponding baud rate through digital key 1 / 2 / 3 / 4
5.1.2 Start to upgrade
Enter the space bar, press and hold the ES0 (GPIO0) and RST (SYS_RST_N) buttons at the same time,
then release the button RST,0.5s then release the button ES0, computer side software will automatically
upgrade the module.
5.2 Introduction of Network upgrade methods
In order to realize the network upgrade of the module, it is necessary to connect the line module
through wifi, and then to upgrade the data transmission according to the ip of the module.
Figure 16. Serial upgrade interface
Figure 17. Serial port is upgrading
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