声卡驱动，手机使用 声卡驱动，手机使用-Sound card drivers, cell phone use

stm32f103vbt6 声卡驱动，经过验证声音很好，，验证成功才上传的，使用时根据引脚稍稍修改一下，如不想修改按程序内定义的连接即可。-Sound card drivers, sound good,, proven successful verification only uploaded when using the pin slightly modified according to it, such as do not want to modify the connection wit