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使用GM 8123高速串口扩展芯片扩展核心微处理器串口，实现多模块控制。
Additionally, the serial port of MPU are extended by GM8123 to realize multi-module control.
youdao
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使用GM 8123高速串口扩展芯片扩展核心微处理器串口，实现多模块控制。
Additionally, the serial port of MPU are extended by GM8123 to realize multi-module control.
youdao