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硬件接口IIC和SPI



请教一个问题:对应I2C的中断向量有几个啊?TI官方例程里是这样,前面打开的是接收中断, (IE2 |= UCB0RXIE;                          // Enable RX interrupt)

后面,中断服务程序却是用的USART0TX_VECTOR,无论发送还是接收数据都只用这一个发送中断函数吗??