MRMS
Functions | Variables
VL53L1X_api.c File Reference

Functions implementation. More...

#include "VL53L1X_api.h"
#include <string.h>

Functions

VL53L1X_ERROR VL53L1X_GetSWVersion (VL53L1X_Version_t *pVersion)
 This function returns the SW driver version.
 
VL53L1X_ERROR VL53L1X_SetI2CAddress (uint16_t dev, uint8_t new_address)
 This function sets the sensor I2C address used in case multiple devices application, default address 0x52.
 
VL53L1X_ERROR VL53L1X_SensorInit (uint16_t dev)
 This function loads the 135 bytes default values to initialize the sensor. More...
 
VL53L1X_ERROR VL53L1X_ClearInterrupt (uint16_t dev)
 This function clears the interrupt, to be called after a ranging data reading to arm the interrupt for the next data ready event.
 
VL53L1X_ERROR VL53L1X_SetInterruptPolarity (uint16_t dev, uint8_t NewPolarity)
 This function programs the interrupt polarity
1=active high (default), 0=active low.
 
VL53L1X_ERROR VL53L1X_GetInterruptPolarity (uint16_t dev, uint8_t *pInterruptPolarity)
 This function returns the current interrupt polarity
1=active high (default), 0=active low.
 
VL53L1X_ERROR VL53L1X_StartRanging (uint16_t dev)
 This function starts the ranging distance operation
The ranging operation is continuous. The clear interrupt has to be done after each get data to allow the interrupt to raise when the next data is ready
1=active high (default), 0=active low, use SetInterruptPolarity() to change the interrupt polarity if required.
 
VL53L1X_ERROR VL53L1X_StopRanging (uint16_t dev)
 This function stops the ranging.
 
VL53L1X_ERROR VL53L1X_CheckForDataReady (uint16_t dev, uint8_t *isDataReady)
 This function checks if the new ranging data is available by polling the dedicated register. More...
 
VL53L1X_ERROR VL53L1X_SetTimingBudgetInMs (uint16_t dev, uint16_t TimingBudgetInMs)
 This function programs the timing budget in ms. Predefined values = 15, 20, 33, 50, 100(default), 200, 500.
 
VL53L1X_ERROR VL53L1X_GetTimingBudgetInMs (uint16_t dev, uint16_t *pTimingBudget)
 This function returns the current timing budget in ms.
 
VL53L1X_ERROR VL53L1X_SetDistanceMode (uint16_t dev, uint16_t DM)
 This function programs the distance mode (1=short, 2=long(default)). Short mode max distance is limited to 1.3 m but better ambient immunity.
Long mode can range up to 4 m in the dark with 200 ms timing budget.
 
VL53L1X_ERROR VL53L1X_GetDistanceMode (uint16_t dev, uint16_t *DM)
 This function returns the current distance mode (1=short, 2=long).
 
VL53L1X_ERROR VL53L1X_SetInterMeasurementInMs (uint16_t dev, uint32_t InterMeasMs)
 This function programs the Intermeasurement period in ms
Intermeasurement period must be >/= timing budget. This condition is not checked by the API, the customer has the duty to check the condition. Default = 100 ms.
 
VL53L1X_ERROR VL53L1X_GetInterMeasurementInMs (uint16_t dev, uint16_t *pIM)
 This function returns the Intermeasurement period in ms.
 
VL53L1X_ERROR VL53L1X_BootState (uint16_t dev, uint8_t *state)
 This function returns the boot state of the device (1:booted, 0:not booted)
 
VL53L1X_ERROR VL53L1X_GetSensorId (uint16_t dev, uint16_t *sensorId)
 This function returns the sensor id, sensor Id must be 0xEEAC.
 
VL53L1X_ERROR VL53L1X_GetDistance (uint16_t dev, uint16_t *distance)
 This function returns the distance measured by the sensor in mm.
 
VL53L1X_ERROR VL53L1X_GetSignalPerSpad (uint16_t dev, uint16_t *signalRate)
 This function returns the returned signal per SPAD in kcps/SPAD. With kcps stands for Kilo Count Per Second.
 
VL53L1X_ERROR VL53L1X_GetAmbientPerSpad (uint16_t dev, uint16_t *ambPerSp)
 This function returns the ambient per SPAD in kcps/SPAD.
 
VL53L1X_ERROR VL53L1X_GetSignalRate (uint16_t dev, uint16_t *signal)
 This function returns the returned signal in kcps.
 
VL53L1X_ERROR VL53L1X_GetSpadNb (uint16_t dev, uint16_t *spNb)
 This function returns the current number of enabled SPADs.
 
VL53L1X_ERROR VL53L1X_GetAmbientRate (uint16_t dev, uint16_t *ambRate)
 This function returns the ambient rate in kcps.
 
VL53L1X_ERROR VL53L1X_GetRangeStatus (uint16_t dev, uint8_t *rangeStatus)
 This function returns the ranging status error
(0:no error, 1:sigma failed, 2:signal failed, ..., 7:wrap-around)
 
VL53L1X_ERROR VL53L1X_GetResult (uint16_t dev, VL53L1X_Result_t *pResult)
 This function returns measurements and the range status in a single read access.
 
VL53L1X_ERROR VL53L1X_SetOffset (uint16_t dev, int16_t OffsetValue)
 This function programs the offset correction in mm. More...
 
VL53L1X_ERROR VL53L1X_GetOffset (uint16_t dev, int16_t *offset)
 This function returns the programmed offset correction value in mm.
 
VL53L1X_ERROR VL53L1X_SetXtalk (uint16_t dev, uint16_t XtalkValue)
 This function programs the xtalk correction value in cps (Count Per Second).
This is the number of photons reflected back from the cover glass in cps.
 
VL53L1X_ERROR VL53L1X_GetXtalk (uint16_t dev, uint16_t *xtalk)
 This function returns the current programmed xtalk correction value in cps.
 
VL53L1X_ERROR VL53L1X_SetDistanceThreshold (uint16_t dev, uint16_t ThreshLow, uint16_t ThreshHigh, uint8_t Window, uint8_t IntOnNoTarget)
 This function programs the threshold detection mode
Example:
VL53L1X_SetDistanceThreshold(dev,100,300,0,1): Below 100
VL53L1X_SetDistanceThreshold(dev,100,300,1,1): Above 300
VL53L1X_SetDistanceThreshold(dev,100,300,2,1): Out of window
VL53L1X_SetDistanceThreshold(dev,100,300,3,1): In window
. More...
 
VL53L1X_ERROR VL53L1X_GetDistanceThresholdWindow (uint16_t dev, uint16_t *window)
 This function returns the window detection mode (0=below; 1=above; 2=out; 3=in)
 
VL53L1X_ERROR VL53L1X_GetDistanceThresholdLow (uint16_t dev, uint16_t *low)
 This function returns the low threshold in mm.
 
VL53L1X_ERROR VL53L1X_GetDistanceThresholdHigh (uint16_t dev, uint16_t *high)
 This function returns the high threshold in mm.
 
VL53L1X_ERROR VL53L1X_SetROICenter (uint16_t dev, uint8_t ROICenter)
 This function programs the new user ROI center, please to be aware that there is no check in this function. if the ROI center vs ROI size is out of border the ranging function return error #13.
 
VL53L1X_ERROR VL53L1X_GetROICenter (uint16_t dev, uint8_t *ROICenter)
 This function returns the current user ROI center.
 
VL53L1X_ERROR VL53L1X_SetROI (uint16_t dev, uint16_t X, uint16_t Y)
 This function programs the ROI (Region of Interest)
The ROI position is centered, only the ROI size can be reprogrammed.
The smallest acceptable ROI size = 4
. More...
 
VL53L1X_ERROR VL53L1X_GetROI_XY (uint16_t dev, uint16_t *ROI_X, uint16_t *ROI_Y)
 This function returns width X and height Y.
 
VL53L1X_ERROR VL53L1X_SetSignalThreshold (uint16_t dev, uint16_t Signal)
 This function programs a new signal threshold in kcps (default=1024 kcps
.
 
VL53L1X_ERROR VL53L1X_GetSignalThreshold (uint16_t dev, uint16_t *signal)
 This function returns the current signal threshold in kcps.
 
VL53L1X_ERROR VL53L1X_SetSigmaThreshold (uint16_t dev, uint16_t Sigma)
 This function programs a new sigma threshold in mm (default=15 mm)
 
VL53L1X_ERROR VL53L1X_GetSigmaThreshold (uint16_t dev, uint16_t *sigma)
 This function returns the current sigma threshold in mm.
 
VL53L1X_ERROR VL53L1X_StartTemperatureUpdate (uint16_t dev)
 This function performs the temperature calibration. It is recommended to call this function any time the temperature might have changed by more than 8 deg C without sensor ranging activity for an extended period.
 

Variables

const uint8_t VL51L1X_DEFAULT_CONFIGURATION []
 

Detailed Description

Functions implementation.

Function Documentation

◆ VL53L1X_CheckForDataReady()

VL53L1X_ERROR VL53L1X_CheckForDataReady ( uint16_t  dev,
uint8_t isDataReady 
)

This function checks if the new ranging data is available by polling the dedicated register.

Parameters
isDataReady==0 -> not ready; isDataReady==1 -> ready

◆ VL53L1X_SensorInit()

VL53L1X_ERROR VL53L1X_SensorInit ( uint16_t  dev)

This function loads the 135 bytes default values to initialize the sensor.

Parameters
devDevice address
Returns
0:success, != 0:failed

◆ VL53L1X_SetDistanceThreshold()

VL53L1X_ERROR VL53L1X_SetDistanceThreshold ( uint16_t  dev,
uint16_t  ThreshLow,
uint16_t  ThreshHigh,
uint8_t  Window,
uint8_t  IntOnNoTarget 
)

This function programs the threshold detection mode
Example:
VL53L1X_SetDistanceThreshold(dev,100,300,0,1): Below 100
VL53L1X_SetDistanceThreshold(dev,100,300,1,1): Above 300
VL53L1X_SetDistanceThreshold(dev,100,300,2,1): Out of window
VL53L1X_SetDistanceThreshold(dev,100,300,3,1): In window
.

Parameters
dev: device address
ThreshLow(inmm) : the threshold under which one the device raises an interrupt if Window = 0
ThreshHigh(inmm) : the threshold above which one the device raises an interrupt if Window = 1
Windowdetection mode : 0=below, 1=above, 2=out, 3=in
IntOnNoTarget= 1 (No longer used - just use 1)

◆ VL53L1X_SetOffset()

VL53L1X_ERROR VL53L1X_SetOffset ( uint16_t  dev,
int16_t  OffsetValue 
)

This function programs the offset correction in mm.

Parameters
OffsetValue:theoffset correction value to program in mm

◆ VL53L1X_SetROI()

VL53L1X_ERROR VL53L1X_SetROI ( uint16_t  dev,
uint16_t  X,
uint16_t  Y 
)

This function programs the ROI (Region of Interest)
The ROI position is centered, only the ROI size can be reprogrammed.
The smallest acceptable ROI size = 4
.

Parameters
X:ROIWidth; Y=ROI Height