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串口接收DMA方式在PM2模式下无法正常显示,怎么唤醒
processors.wiki.ti.com/.../LPRF_BLE_HostTestPM
低功耗串口例子,仔细研究
上面只有发送的时候唤醒,接收呢?一定要靠外部唤醒吗?