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vl53l7cx_get_ranging_data returning some pixels with distance 0

marte1234
Associate
Hello,
We have lately been seeing in some cases that one or two pixels seem to be stuck at distance_mm==0.
Sometimes the pixel goes back to returning normal values after some time or after a power cycle, but sometimes it seems to report a zero value consistantly.
 
I will implement some more debugging to get the status of the measurements, but I was wondering if you had any input into why a zero value could be measured for one or two pixels?
1 REPLY 1
Zhiyuan.Han
ST Employee

Hi 

This sound strange, may I know your test setup

  • With or without a cover glass on top of VL53L7CX?
  • How long distance from VL53L7CX to real target?
  • which driver version are you using? and possible to share some datalog?

 

Br

Zhiyuan.Han


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