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AFE4400读写

Other Parts Discussed in Thread: AFE4400

现在在用TI的AFE4400做血氧模块,硬件电路是参考TI的电路原理图,控制芯片用的5528。现在的问题是写寄存器没有反应,读也读不出来任何东西。现在硬件唯一的反应时CLKOUT是有4MHz的时钟信号,这个时钟信号能不能证明硬件电路时可用的?想问一下怎么证明芯片写寄存器是成功的?有没有参考例程?