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ADS1293数据转换问题?

Other Parts Discussed in Thread: ADS1293

参照ADS1293 PDF资料  Figure 34. 8-12-Lead ECG Application 原理和寄存器设置,设置寄存器读写没有问题,但启动ADC转换后,DRDYB管脚一直为高电平,ADC转换不能正常进行,请问这样的情况,有可能是哪里的问题?之前一片的ADS1293   Figure 33.  5-Lead ECG Application 已调试成功,这两个例程应用在ADC上有何不同吗?

  • 用示波器测一下三片ADS1293的片选信号CSB有没有起冲突? 如果这里没问题,恢复到一片正常的情况下,逐个对每一片ADS1293做单独测试,确认都正常后,再2两片,然后三片一起测试。