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您好，
BQ40Z50和BQ20Z80是不同系列的产品，寄存器配置上是有不同的，具体可以参考各自的数据手册以及Technical Reference Manual
www.ti.com/.../bq40z50-r1.pdf
https://www.ti.com/cn/lit/ds/symlink/bq20z80.pdf
https://www.ti.com/cn/lit/er/sluu276/sluu276.pdf
BQ40Z50对CHGM的设置请参考www.ti.com.cn/.../sluubc1d.pdf
