我用ADS1299来做一个32通道的脑电放大器,开始的时候都比较正常,芯片ID也读的对(我开始读出来为0X3E),同时测试方波输出也正常;但是过了两天后突然芯片ID读取就不正常了,现在ID读出来为0XDF或0X02,但是现在测试信号也能输出正常;我也换过芯片,换了芯片也是这样,开始ID可以读出正常,后面就变成0XDF了。
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电源数字3.4V,模拟5.2V;而且读取配置寄存器的值都对,除了ID(照理这个不会变的啊),而且测了ADS1299内部的测试信号和外接信号都可以输出信号。