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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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AN4073 датащи(PDF) 9 Page - STMicroelectronics |
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AN4073 датащи(HTML) 9 Page - STMicroelectronics |
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9 / 32 page  DocID022945 Rev 5 9/32 AN4073 Firmware techniques for improving the conversion accuracy 31 Figure 3. Averaging of N-X ADC sample algorithm Total conversion time = (number of samples * ADC conversion time) + computation time. Computation time = time taken to read the results, sort the N ADC samples, delete the X most dispersed samples, add the rest of the ADC samples together and calculate the average by dividing the total by N-X. Note: Refer to Appendix B for more details about the code source used. MS31177V1 Start Initialize ADC, variables, I/O and select the analog channel to be used, (Buff[N]) Configure the ADC to convert once after each trigger Set the ADC Start of Conversion bit Read the ADC output registers after End of Conversion Add read value to Buff[++] No. of conversions = N? Sort the N ADC sample (sort Buff[N]) End Yes No Delete X/2 sample from the top of Buff[N] And X/2 sample from the bottom of Buff[N] N- _ 2 X -1 () _ 2 X Buff[i] () N - X 1 Average = |
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