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AWR2243BOOST: AWR2243BOOST启动异常

Expert 1815 points
Part Number: AWR2243BOOST
Other Parts Discussed in Thread: AWR2243

图1 图2 图3

图1所示AWR2243启动步骤,我按照SPI协议进行配置,FPGA抓取的波形如图2和图3所示,问题1是IRQ没有在CNYS信息发完后拉低,而是过了好几秒才拉低。问题2:图2所示的发送CNYS后spi_miso返回信息应该是DCBA_ABCD开头的,但显示的也不正常,请问复位完以后发CNYS有什么返回信号?