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TMF882X

Using the EVM Software

Demo Kit Manual

• PUBLIC

UG000495

• v6-00 • 2022-May-19

36

│ 12

"Mode" Combo Box

This control is available for 3 x 3, 4 x 4, and 3 x 6 zones. It selects three predefined parameter sets for

iterations and threshold:

●

Default Mode - 550000 iterations, the TMF882X runs with a measurement frequency of 30 Hz in

this mode

●

Low Power Mode - 50000 iterations, the TMF882X runs with minimal power consumption in this

mode

●

High Performance Mode - 4000000 iterations, used for detecting objects with maximum range

In all three modes, the default value for the object detection threshold is 6. This is the minimum

confidence required to display an object in the distance bar chart and the 3D graphs.

"Iterations" Spin Box

Select the number of iterations in a single target measurement here. If you increase the number of

iterations for a single measurement the overall measurement frequency will decrease.

For 8 x 8 zones, the EVM GUI will display the frame rate depending on the number of iterations. The

maximum framerate is 15 samples/second.

"Threshold" Spin Box

Select the minimum confidence threshold for target detection here. If the calculated target detection

confidence is below this level, the GUI will not display the corresponding object in the graphs.

"Run" Check Box

Enable this check box to run target measurements continuously.

Sequence Controls

The sequence spin box and the sequence button enable you to run a defined number of target

measurements. With the default setting clicking the sequence button will trigger 10 measurements.

After that, the EVM GUI will stop requesting new measurement results. This is especially useful for

logging an exactly defined number of measurements.

Calibration Controls

The EVM needs to be calibrated for precise measurements. The factory calibration indicator (the dot

left of the "Calibrate" button) shows if the EVM was calibrated for the current operation mode (e.g.

3 x 3) and the selected SPAD map.

Without calibration data, the ToF possibly also detects the cross-talk peak caused by the cover glass

on the EVM case as valid object.