ydc7s

Serial burner——ch340G inventory cleaning

Overview

In fact, there is no principle. Just look at the document and pay attention to the starting capacitor of the 12Mhz crystal oscillator. If the chip does not respond, the starting capacitor may be wrong. Also note that port A and port C cannot be used at the same time. There is no anti-backflow protection here. The blank part on the right side of the PCB is to protect the 2.54 bent pin, you can choose not to use it.

Design Files

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Update:2025-06-19 12:51:30

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