VL53L1: What is the data format for the offset calibration parameters?

[MVand.3]

VL53L1_PerformOffsetCalibration(Dev, 140, 17 << 16)

From digging in the code it looks like CalReflectancePerCent is fixpoint1616 and CalDistanceMilliMeter is an int32. For example is this the correct format to calibrate with a 17% Grey card at 140mm?

[John E KVAM · Accepted solution]

I would have said no, that clearly makes no sense.

But I'd be wrong.

Looking through some example code, I saw:

Status = VL53L1_PerformOffsetCalibration(Dev, 600,

(FixPoint1616_t)(5 * 65536));

which clearly is an example of your <<16.

I have no idea how someone could have created such a trap.

But they clearly did.

Nice catch.

[MVand.3]

Thanks John, I appreciate the quick replies.