ADS1292 Lead-OFF导联脱落检测无效问题

ADS1292 DC Lead-off配置无效，选择IN1P和IN1N通道进行测试；当导联脱落时，读取LOFF_STAT状态寄存器中的IN1N_OFF和IN1P_OFF位一直为0；当两电极接标准信号源时取LOFF_STAT状态寄存器也一直为0；当用手接触单个电极会有时，LOFF_STAT状态寄存器候位0，有时候为1，处于一种不稳定的状态。

寄存器配置如下：

ADS1292_WriteReg(0x01,0X01);//REG_CONFIG1
ADS1292_WriteReg(0x02,0Xe0);//REG_CONFIG2
ADS1292_WriteReg(0x03,0X10); //REG_LOFF
ADS1292_WriteReg(0x04,0X00);//REG_CH1SET
ADS1292_WriteReg(0x05,0X81);//REG_CH2SET
ADS1292_WriteReg(0x06,0X2c);//REG_RLD_SENS
ADS1292_WriteReg(0x07,0X0f);//REG_LOFF_SENS
ADS1292_WriteReg(0x08,0X00);//REG_LOFF_STAT
ADS1292_WriteReg(0x09,0X02);//REG_RESP1
ADS1292_WriteReg(0x0a,0X03);//REG_RESP2
ADS1292_WriteReg(0x0b,0X0C);//REG_GPIO

user151383853：

这种时有时无的情况, 会不会跟 PCB 布线也有关. 好象信号不明确