password, and then hit the enter key, as shown in the figure
below:
Figure 6
2）When communication fails, the version number is 0，as
shown in the figure below:
Figure 7
3）When the communication is successful, the version
number is printed as follows, and it is a non-zero number. At this
time, the communication between the upper computer and the
single chip computer is normal, and the online upgrade can be
performed:
Figure 8
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