LTC6804，用函数wrcfg配置成fe 00 00 00 00 00，但是rdcfg返回的值是fc 00 00 00 00 00，读的值和写的值不一致，如图1-3所示， ，请大神们帮忙看看是哪里配置不对吗？谢谢！
Your value changes from FE to FC which means SWTRD bit changed. That is okay because as per the datasheet it is a read only bit.
It is read from the external jumpers connected to the board(either high or low). The value seen is irrespective of this bit. which means your rdcfg is returning correct value (ignoring SWTRD bit) .
Got it , thanks very much!