VL53L0X interrupt setting

[anonymous.8]

Posted on May 21, 2018 at 06:53

Hi 

 I am trying to get the VL53L0X using the api provided and the source code available on 

https://os.mbed.com/users/andcor02/code/vl53l0x_api/

  which is just a copy of the VL53L0X api. I am using the STM32L432KC NUCLEO board with I2C connnection to a breakout board available on ebay -> 

https://www.ebay.com/itm/VL53L0X-Time-of-Flight-Distance-Sensor-Breakout-GY-VL53L0XV2-Module-for-Arduino/201718280643?hash=item2ef758b1c3:g:UPsAAOSwzXxaMlyn

  

 The module works fine but the interrupt pin does not do anything. I am trying to use the 0x04 setting for NEW_DATA_READY setting as per the API, but don't see any trigger on the interrupt or on a digital logic analyzer. 

 Please help

Best

Chandra

[just4you]

Posted on May 29, 2018 at 12:03

My configuration for continuous interrupt

VL53L0X_DataInit();

VL53L0X_StaticInit();

VL53L0X_PerformRefCalibration()

VL53L0X_PerformRefSpadManagement()

VL53L0X_SetDeviceMode(VL53L0X_DEVICEMODE_CONTINUOUS_RANGING)

VL53L0X_SetLimitCheckEnable()

VL53L0X_SetLimitCheckEnable()

VL53L0X_SetLimitCheckValue()

VL53L0X_SetLimitCheckValue()

VL53L0X_SetMeasurementTimingBudgetMicroSeconds()

VL53L0X_SetVcselPulsePeriod()

VL53L0X_SetVcselPulsePeriod()

VL53L0X_SetGpioConfig( VL53L0X_DEVICEMODE_CONTINUOUS_RANGING, VL53L0X_GPIOFUNCTIONALITY_NEW_MEASURE_READY, VL53L0X_INTERRUPTPOLARITY_LOW)

VL53L0X_ClearInterruptMask()

VL53L0X_PerformRefCalibration()

// set gpio

VL53L0X_StartMeasurement()

// check gpio input or falling interrupt

VL53L0X_GetRangingMeasurementData()

VL53L0X_ClearInterruptMask()

    or VL53L0X_WrByte(VL53L0X_REG_SYSTEM_INTERRUPT_CLEAR, 0x01) // according to crazyflie 2.0 code

[anonymous.8]

Posted on May 30, 2018 at 08:55

Hi

‌

 Thank you for trying to help me out. Let me know if you have tried this code snippet and if it actually works because I tried something very similar and did not get anything out of the interrupt. 

Best

Chandra

[just4you]

Posted on June 15, 2018 at 10:06

It's part of my project I'm working on.

(It does not contain whole function, but you can catch your code of intention.)

I hope it's helpful for you!

Data ready pin level of a vl53l0x sensor.

(Configuration is long range - 33ms, 2M, data ready pin is active low)

________________ Attachments : VL53L0X_TEST.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HxUo&d=%2Fa%2F0X0000000ayp%2FX_6E5eLfhNyMRe991N6ZSNZgW3BNjuwTtYD4sB53cvA&asPdf=false