Note

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Touch Example

Overview

This sample demonstrates the RT-Smart touch HAL read flow in two modes:

• reading points from an already registered touch device

• creating the touch device dynamically from configuration, then reading points

Source file:

src/rtsmart/examples/peripheral/touch/test_touch.c

Sample Capabilities

• print touch events: DOWN, MOVE, and UP

• support multi-touch reads, with a sample buffer size of 5 points

• print device capabilities and current configuration

• support clean exit with Ctrl+C

Key APIs (matching the current code)

• drv_touch_inst_create()

• drv_touch_read()

• drv_touch_get_info()

• drv_touch_get_config()

• drv_touch_get_default_rotate()

• drv_touch_inst_destroy()

• canmv_misc_create_touch_device()

• canmv_misc_delete_touch_device()

Build and Run

Build

cd src/rtsmart/examples/peripheral/touch
make

Run Mode 1: Test an Existing Device

Run the sample directly to read points from an existing touch device.

Run Mode 2: Create the Device Dynamically and Test

Use the dynamic-create path when the touch device needs to be created from configuration before reading events.

Common Parameters

Use the device path and related touch configuration that match your board setup.

Output Interpretation

The sample prints touch points, event type, and device information so you can confirm whether the touch input path is working correctly.