Samples/Archive/Windows.Devices.Spi

SPI sample

Shows how to use the Windows.Devices.Spi API to read and write from/to an SPI device. In this sample we'll be using a L3GD20 3-axis gyroscope mounted in a STM32F429I DISCOVERY board.

The sample project includes a minimal driver for the L3GD20. It configures the touchscreen controller and the GPIO pin where the INT signal of the controller is connected allowing the code to react to a touch event rather then wasting CPU by constantly pooling the touch detection.

Following a touch event (and as long as the screen is pressed) the console outputs the coordinates of the touch point.

Hardware requirements

An STM32F429I DISCOVERY board. The code sample is demonstrative of the use of the SPI API.

Related topics

Reference

• Windows.Devices.Spi
• Windows.Devices.Gpio

Build the sample

1. Start Microsoft Visual Studio 2019 (VS 2017 should be OK too) and select File > Open > Project/Solution.
2. Starting in the folder where you unzipped the samples/cloned the repository, go to the subfolder for this specific sample. Double-click the Visual Studio Solution (.sln) file.
3. Press Ctrl+Shift+B, or select Build > Build Solution.

Run the sample

The next steps depend on whether you just want to deploy the sample or you want to both deploy and run it.

Deploying the sample

• Select Build > Deploy Solution.

Deploying and running the sample

• To debug the sample and then run it, press F5 or select Debug > Start Debugging.

Important: Before deploying or running the sample, please make sure your device is visible in the Device Explorer.

Tip: To display the Device Explorer, go to Visual Studio menus: View > Other Windows > Device Explorer.