Keyboard Sample #
Overview #
A matrix keyboard is a type of keyboard that uses a grid of buttons or keys arranged in rows and columns. Each key is assigned a unique position within the grid, identified by the intersection of its row and column. When a key is pressed, the corresponding row and column are activated, and the microcontroller can detect the specific key based on the activated row and column.
Hardware Requirements #
| Hardware | Project Name | Project Path |
|---|---|---|
| IN628E DK | proj_drv_keyboard | in-dev/proj/driver/proj_drv_keyboard |
Building #
To build the sample with keil, follow the steps listed on the quick start page in the IN6xxE of Inplay Doc. You may be able to solve questions on that webpage.
Debug #
We can get the status of keyboard on uart log.
- press button:
press key: row:... col:... - release button:
release row:... col:...
More information may be found in debug guide page.
Test Steps #
- Open Keil and download the proj_drv_keyboard project.
- Press the reset button and observe the log for the text
CHIP ID =. - Press the button, we will get the status press button . After that, we release the button, we will get the status release button