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在G2553中spi接口和uart接口都使用同一个中断向量USCIAB0RX_VECTOR，如果uart A和SPI B同时使用的话，这个中断向量给如何区分呢？
参考 https://e2e.ti.com/support/microcontrollers/msp430/f/166/t/268202
标志位是不同的
谢谢各位
