2

Functional description

2.1

System functional description

Figure 4. VL53L4CX system functional description shows the system level functional description.

The host customer application controls the device using an API (application programming interface). The API

implementation is delivered to the customer as a driver (bare C code, or Linux/Android driver). The driver shares

with the customer application a set of high level functions that allow control of the firmware, like initialization,

ranging start/stop, setting the system accuracy.

The driver is a turnkey solution consisting of a set of “C” functions that enable fast development of end-user

applications without the complication of direct multiple register access. The driver is structured in a way that it can

be compiled on any kind of platform through a well abstracted platform layer. The driver package allows the user

to take full advantage of the VL53L4CX capabilities.

A detailed description of the driver is available in the user manual (UM2923).

The firmware fully manages the hardware registers access.

Section 2.2 State machine description details the firmware state machine.

VL53L4CX

Functional description

DS13805 - Rev 3

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