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TMS320F280049: 串口通信仿真时正常,不连仿真时收不到数据,但是发送正常。

Part Number: TMS320F280049


串口通信用查询的方式接收与发送。发送是正常的,接收在仿真时正常,不连仿真时不对,以为是时钟问题,测了晶振无异常。

串口接收放在了PWM中断中,通过查询RXFFST接收。PWM中断在连不连仿真时都是正常响应的,已经通过翻转IO口验证。