Version 1.0

The purpose of this code is to provide a simple example of using the V4L2 driver of the Topaz module in C.

Requirements

Meson tool has to be installed:

sudo apt install meson

Also following libraries are required:

sudo apt install v4l-utils libv4l-dev

Compilation

meson build
ninja -C build install

All executables will be in the directory "executables"

GPIO

GPIO_example.c brings an example of control of the pins of the nano jetson allowing with an adjustment of the frequency or the number of signals to send. See the code for more information.

Usage

cd executables
./GPIO

Image Capture

ImageCapture.c provides an example of taking a sequence of images by changing some sensor parameters between each image. In this file you can also find functions to drive the sensor which are different from the api (less complex, address of the controls defined in static).

You can compile the program to take a sequence of RAW images and customize the controls applied to each image as you wish.

It is also possible to take picture in different formats and resolution with the sensor mode. Take a look at Usage (just bellow) for more informations.

Usage

Image capture take in argument the sensor mode. The sensor mode configure the Format and resolution of the sensor.

cd executables
./ImageCapture <sensor mode>

Example To have GRAY8 format in 1920x1080:

./ImageCapture 2

sensor mode = 0 -> Y10 in 1920x1080 (default)

sensor mode = 1 -> Y10 in 1920x800

sensor mode = 2 -> GRAY8 in 1920x1080

sensor mode = 3 -> GRAY8 in 1920x800

Notes:

• All images are saved in little-endian
• Y10 images will be saved in 16bit raw images