While taking ecg data from the ADS1293EVM, I occasionally get errors with the time. If I run the test for 10 seconds, it captures the "10 seconds" roughly 6 seconds.
To further explore this problem, I intentionally added a 60Hz noise source near my measurement and looked at the FFT on matlab, to see that the 60Hz noise spike at exactly 37.5 Hz. There is an error factor of 1.6 consistently every time this problem occurs, and without changing anything, the problem goes away. I have no way of predicting when the problem will occur. This leads me to believe that I must be doing something wrong with my registers.
Has anyone else experienced this problem, or has a way to remedy this?
Thank you in advance.
Here is my register file:
<?xml version="1.0" encoding="UTF-8"?>
<SensorAFE_config version="1.2.3(build 2)" device_name="LMP90507">
<sensors_list/>
<registers_list>
<register address="0x00" value="0x00"/>
<register address="0x01" value="0x0a"/>
<register address="0x02" value="0x00"/>
<register address="0x03" value="0x00"/>
<register address="0x04" value="0x00"/>
<register address="0x05" value="0x00"/>
<register address="0x06" value="0x04"/>
<register address="0x07" value="0x03"/>
<register address="0x08" value="0x01"/>
<register address="0x09" value="0x00"/>
<register address="0x0a" value="0x00"/>
<register address="0x0b" value="0x00"/>
<register address="0x0c" value="0x00"/>
<register address="0x0d" value="0x00"/>
<register address="0x0e" value="0x00"/>
<register address="0x0f" value="0x00"/>
<register address="0x10" value="0x00"/>
<register address="0x11" value="0x00"/>
<register address="0x12" value="0x04"/>
<register address="0x13" value="0x09"/>
<register address="0x14" value="0x36"/>
<register address="0x15" value="0x00"/>
<register address="0x16" value="0x00"/>
<register address="0x17" value="0x05"/>
<register address="0x18" value="0x00"/>
<register address="0x19" value="0x00"/>
<register address="0x1a" value="0x00"/>
<register address="0x1b" value="0x00"/>
<register address="0x1c" value="0x00"/>
<register address="0x1d" value="0x00"/>
<register address="0x21" value="0x08"/>
<register address="0x22" value="0x10"/>
<register address="0x23" value="0x02"/>
<register address="0x24" value="0x02"/>
<register address="0x25" value="0x00"/>
<register address="0x26" value="0x06"/>
<register address="0x27" value="0x08"/>
<register address="0x28" value="0x00"/>
<register address="0x29" value="0x00"/>
<register address="0x2a" value="0x00"/>
<register address="0x2b" value="0x00"/>
<register address="0x2c" value="0x00"/>
<register address="0x2d" value="0x00"/>
<register address="0x2e" value="0x33"/>
<register address="0x2f" value="0x10"/>
<register address="0x30" value="0x00"/>
<register address="0x31" value="0x00"/>
<register address="0x32" value="0x00"/>
<register address="0x33" value="0x00"/>
<register address="0x34" value="0x00"/>
<register address="0x35" value="0x00"/>
<register address="0x36" value="0x00"/>
<register address="0x37" value="0x00"/>
<register address="0x38" value="0x00"/>
<register address="0x39" value="0x00"/>
<register address="0x3a" value="0x00"/>
<register address="0x3b" value="0x00"/>
<register address="0x3c" value="0x00"/>
<register address="0x3d" value="0x00"/>
<register address="0x3e" value="0x00"/>
<register address="0x3f" value="0x00"/>
<register address="0x40" value="0xff"/>
<register address="0x50" value="0x00"/>
<register address="0x60" value="0x00"/>
<register address="0x62" value="0x00"/>
</registers_list>
</SensorAFE_config>
