FAQs
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

VL53L1X_SensorInit has an infinite loop that hangs the sensor

nico23
Senior II

‎2025-08-07 4:27 AM - last edited on ‎2025-08-07 4:30 AM by

The STSW-IMG009 VL53L1X ULD API (Ultra Lite Driver Application Programming Interface) has a bug in the function VL53L1X_SensorInit that blocks the code from being executed if  status |= VL53L1X_CheckForDataReady(dev, &tmp);  write 0 constantly in tmp

The block 

	while (tmp == 0) {
		status |= VL53L1X_CheckForDataReady(dev, &tmp);
	}

has no timeout implemented and, for instance, if a cable or a sensor breaks for some reason, the code will endup stuck there

Please also see this github issue exit VL53L1X_SensorInit() after timeout if no sensor / sensor doesn't work · Issue #29 · sparkfun/SparkFun_VL53L1X_Arduino_Library

where a timeout is added Add timeout to sensorInit · sparkfun/qwiic_vl53l1x_py@1154d07 · GitHub

Labels:
0 Kudos
1 REPLY 1
Anne BIGOT
ST Employee

‎2025-08-14 2:20 AM

Hello,
Your feedback has been transferred internally to the software team.
We will update you on this specific topic.

Anne


Our community relies on fruitful exchanges and good quality content. You can thank and reward helpful and positive contributions by marking them as 'Accept as Solution'. When marking a solution, make sure it answers your original question or issue that you raised.

ST Employees that act as moderators have the right to accept the solution, judging by their expertise. This helps other community members identify useful discussions and refrain from raising the same question. If you notice any false behavior or abuse of the action, do not hesitate to 'Report Inappropriate Content'
Top