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做DM642的串口通信，使用中断方式。初始化时一行一行打断点，发现运行完HWI_enable这行后跳转到中断服务程序，运行完后继续运行SCOM_init。但是当我在串口调试助手写入数据时，却无法进入中断。这是怎么回事呢？求解答，比较急。谢谢！
找找看TI有没有现成的串口中断例子，对比一下
