使用了IAR自带的MSP430F5xx_6xx串口例程，我用的串口是UA2的所以改了相关部分，但是问题多多
1.下载完程序后串口输出1，给串口发送数据过半天返回一个0，再发数据就能快速返回了。
2.当不发送数据后，串口会不断自动输出0，速度很慢
代码如下：
(请访问站点以查看此文件)
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