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LAUNCHXL-F280025C: sci通信在离线情况下不能进入接收中断

Part Number: LAUNCHXL-F280025C

使用XDS110仿真器烧录到Flash,并在线仿真运行,上位机发送数据,SCI能进入中断,并接收到完整的数据。当我拔掉仿真器,通过USB重新上电,重新打开串口,并通过上位机发送数据,DSP无法进入SCI接收中断接收到SCI数据,但是DSP的其他中断如ADC和PWM等可以正常工作。接着我通过开发板的复位按钮复位DSP,然后就能顺利进入SCI接收中断接收到SCI数据。现在我想解决的是一上电,DSP就能接收到SCI数据,而不是通过复位才能接收到上位机下发的数据。谢谢!