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4. Upgrade Introduction
The upgrade of HLK-B32 module can be carried out through serial port or network, and the
appropriate upgrade method can be selected according to the field environment.
4.1 Introduction of Serial Port Upgrade Method
In the upgrade folder there is a img file, upgrade software mainly read the files inside to
upgrade; There are three files in the img folder, where HLK-B32.img and HLK-B32
(b.1.00.1 20180611182552). Img file contents are the same, only file names are different,
HLK-B32 (b.1.00.120180611182552). Txt records the default parameter for this firmware; HLK-
B32 (b.1.00.120180611182) 552) "is the firmware version number, when the module runs this
firmware query version number and this version number the same, each firmware has a unique
version number, automatically generated by the compilation system; When there is a new firmware
to upgrade, the three files can be overwritten.
4.1.1 Open Serial Port Upgrade Software
Open serial port upgrade software HLK-B32_uart.exe, input lowercase string c, select
serial port number, select the corresponding baud rate through digital key 1 / 2 / 3 / 4
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