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ads1292r无法得到有效信号

Other Parts Discussed in Thread: ADS1292R

您好!

在使用ads1292r测量心电的时候发现基本无法看到有效波形。

设计参照的是user guide 中的设计。

寄存器设置为:

ADS1292_REG[ID] = 0x73;
ADS1292_REG[CONFIG1] = 0x02; 
ADS1292_REG[CONFIG2] = 0xA0; 
ADS1292_REG[LOFF] = 0xF0;
ADS1292_REG[CH1SET] = 0x60; 
ADS1292_REG[CH2SET] = 0x60; 
ADS1292_REG[RLD_SENS] = 0xEF; 
ADS1292_REG[LOFF_SENS] = 0xF0; 
ADS1292_REG[LOFF_STAT] = 0x00; 
ADS1292_REG[RESP1] = 0xF2; 
ADS1292_REG[RESP2] = 0x81; 
ADS1292_REG[GPIO] = 0x0C;

下面为测试结果。

如果使用测试方波信号,不接导联线可以得到清晰的方波,如果接的话噪声很大,噪声幅值与方波大小相当。

请问问题出在哪里?谢谢!