AMS TMD2620 Benutzerhandbuch - Seite 12

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AMS TMD2620 Benutzerhandbuch
2.1.5.2
Prox Output Data
The top right corner of the Prox tab displays the data that is output by the device.
PDATA displays the Proximity ADC channel data count.
ProxAvg displays the average of the last 32 PDATA samples displayed above.
StDev displays the standard deviation of the last 32 PDATA samples displayed above.
Note: If HW Prox Averaging is enabled, then the ProxAvg and StDev is calculated based on the last
32 PDATA averages read.
The Det/Rel box is the detect/release indicator. It turns red when PDATA is above the high
threshold and stays red until PDATA falls below the low threshold.
The Status section displays the interrupt status. An 'x' inside the box indicates the interrupt flag is
set. To clear an interrupt, click the 'x' in the box. If the condition causing the interrupt is still present
the box gets set to an "x' again. The PINT box is the proximity interrupt that is set when PDATA
exceeds the high or low threshold. The CINT box is the calibration interrupt that is set when a
calibration sequence is complete. The PSAT box is the saturation interrupt to indicate an ambient or
reflective event cause the ADC data to saturation. The Reflective and Ambient boxes indicate
which type of PSAT event occurred.
2.1.5.3
Prox Data Plot
The remaining portion of the Prox tab is used to display a running plot of the collected PROX
values. The last 350 values are collected and plotted on the graph. As additional values are added,
the old values will be deleted from the left side of the graph.
The Enable Plot checkbox activates the plotting function. Data will only be plotted when this box is
checked.
Click the Clear Plot button to discard the current data and continue plotting the new data. Note, if
the Clear Plot button is clicked while the plot is disabled, the data is discarded, but the actual plot
will not be updated until the plot function is re-enabled.
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