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cc3200 Timer的中断导致I2S的UDMA数据接收失败是何原因!



程序中没加定时模块时,I2S利用UDMA channel4采用pingpong模式接收数据,工作正常.但增加了Timer产生的TIMEOUT中断以后,到固定的时间如6分钟就会使I2S的传输出错,一般是怎样导致的.

MAP_IntPrioritySet(GetPeripheralIntNum(ulBase, ulTimer), INT_PRIORITY_LVL_7);//INT_PRIORITY_LVL_1

MAP_IntPrioritySet(INT_I2S, INT_PRIORITY_LVL_1);//

改了优先级也没用

这种一般是什么原因导致???