从里面读出来的数据全是0

单独把7203焊了个板子，但还是不行，今天的数据随机会有1出现，下面是串口发上来的数据，我们实验室条件简陋，连个逻辑分析都没有，示波器还是个坏的，疯了
20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 60 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 70 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 60 60 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 60 60 60 60 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 60 60 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 60 60 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 60 60 60 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 60 60 60 60 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 60 60 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 F0 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 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00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 60 60 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 60 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00 00 00 20 20 20 20 20 20 20 20 20 00 00 00 00 00 00 00 00

如果有内部时钟，看看开启了么

用的板载的8mhz晶振

看初始化配置的。

除了没用示波器，别的都检查过了，哎

自己写的程序么？

是的

楼主移植 一个iic

不太明白。。。能稍微具体点么大神

iic 自己使用模拟口写一个吧。

可以参考例程的，这个寄存器就配置的不错。

谢谢表扬哈~
有空研究研究，现在好不容易搞到一个20MHZ的滤波器