我使用了一个TIM0中断，还有SCI中断，TIM0的默认中断优先级高于SCI中断，如何修改中断的优先级，设置SCI接收中断的优先级高于TIM0的中断的优先级。中断函数是自己写的，没有调用DSP2802x_SWPrioritizedIsrLevels.h和 DSP2802x_SWPrioritizedDefaultIsr.c 两个文件。
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