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ADS1298: ADS1298导联脱落检测不到的问题

Part Number: ADS1298

ADS1298使用双电源供电,当N端有导联脱落时,寄存器LOFF_STATN读到的值始终为0x00,换为单电源供电读取到的状态正常,配置 相关通道的LOFF_FLIP寄存器让导联脱落翻转时读取的状态也正常,请给予帮助,多谢!

电路原理图

寄存器配置

导联脱落读到的状态字