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TDA3MV: 用TDA3MV芯片自己设计搭建的板子,问题咨询

Part Number: TDA3MV


如下图

板子上电后,上面boot管脚的配置只有配置成Automotive Recovery/Upgrade or Development Booting这种模式,UART3的TX管脚(管脚R6)才会有AL!正常的字符发出,配置成其他三种启动模式在UART3的TX管脚(管脚R6)没有AL!字符发出,正常吗?另外板子跑起来之后QSPI接口需要配置吗,boot需要配置成哪种模式QSPI的SCLK才会有正常的时钟信号输出?