To change the application program the microcontroller is reset by running the downloading program.

为了改变应用程序，单片机通过运行装载程序而重置。

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Program to reset to zero on reaching preset 3 or vice versa.

计划重置为零达到预设3，反之亦然。

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Program to reset to zero on reaching preset 3 or vice versa.

计划重置为零达到预设3，反之亦然。

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