S9KEAZN8AMTG-内部晶振差异较大，怎么破，感谢各位大神！

ctq120

我们在电子换挡器上使用了S9KEAZN8AMTG，路测发现问题【连续二十多个小时路测后停车，再去启动发现换挡器档位指示灯全部同步闪烁】；S9KEAZN8AMTG用PWT功能采集脉宽，由于PCB太小，采用的是内部晶振，导致数据误差有20%左右，芯片一致性不好，是否有办法通过软件校准？

We used S9KEAZN8AMTG on the electronic shifter. The road test found that the problem was: after more than 20 hours of continuous road test, the vehicle was stopped, and then the start of the shifter indicator was flashed. S9KEAZN8AMTG uses the PWT function to collect the pulse width. Because the PCB is too small, the internal crystal oscillator is used, resulting in data error of about 20%. The chip consistency is not good. Is there a way to calibrate through software?

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Splore.Liu

可以参考KE02的内部晶振校准办法。
链接：
https://www.nxpic.org.cn/module/forum/thread-578414-1-1.html