Installing jumper M3 enables the 16-sample moving average filter for all channels. The filter can be reset (or cleared) by writing to the Channel Register. The moving average filter is enabled for all channels and operates completely transparent to ADC acquisition modes. The ADC values read out will be the current sample plus the last fifteen samples summed together and divided by sixteen (average of sixteen ADC samples). It is important to recognize that after the filter is reset or at the beginning of data sampling that it may require at least 16-data samples per channel be taken until the data becomes current. In other words, there is an inherent 16-sample delay in the ADC data that is read out of the ADC Data Register.
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Copyright © 1997-2008 by Apex Embedded Systems. All rights reserved. Updated on Wednesday, April 02, 2008.
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