您好!
请问ADS1299使用Test Signals ,获取到的数据类型是什么?使用什么公式可以还原?据了解,外部信号转换完成后是浮点型的,但是没有看到这块的说明。
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Test Signals (TestP and TestN)
Setting CHnSET[2:0] = 101 provides internally-generated test signals for use in sub-system verification at power up. This functionality allows the device internal signal chain to be tested out.
Test signals are controlled through register settings (see the CONFIG2: Configuration Register 2 subsection in the Register Map section for details). TEST_AMP controls the signal amplitude and TEST_FREQ controls switching at the required frequency.
虽然没有说得太明确, 但是从这个控制寄存器, 能大体看出类似周期性方波样的信号