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F28335 McBSP



在用McBSP接收数据时发现:用示波器观察DR脚上有输入,但是DRR寄存器始终读不到数据。请问这是怎么回事?

  • Bin,

         你要仔细检察一下GPIO引脚有没有配置给这个外设,McBSP的初始化有没有问题,有没有使能该模块,包括时钟,接收发送等,你可以用TI的例程做一下测试。

    Eric