根据测试流程，给出了主机控制程序设计及部分实现代码，并针对开关矩阵硬件构成，分别给出了各个组成部分的固件程序代码。

According to test flow, the host program and its partial code are given, and according to the hardware structure of switch matrix, the firmware of each part is also given.

youdao

根据测试流程，给出了主机控制程序设计及部分实现代码，并针对开关矩阵硬件构成，分别给出了各个组成部分的固件程序代码。

According to test flow, the host program and its partial code are given, and according to the hardware structure of switch matrix, the firmware of each part is also given.

youdao