另外，该开发板原理图我也上传过。

In addition, the development board schematic I uploaded.

youdao

合众达dsk5509开发板原理图，非常好买了开发板才给的。

UCO up DSK5509 development board diagram, a very good buy only for the development of the plate.

youdao

原理图基于Silabs公司的原始开发板。

The schematic is based on the original development board from Silabs.

youdao