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35 lines
1.0 KiB
Markdown
35 lines
1.0 KiB
Markdown
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# About
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This is a manual test application for touch device drivers using the generic
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touch device API. Which touch device driver is used is determined by the board
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definition.
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# Usage
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This test application initializes the touch device and then waits
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for touch events by using interrupts by default. When touch events occur,
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the application generates output like the following:
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```
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Event: pressed!
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X: 157, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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X: 158, Y:152
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Event: released!
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```
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To use the touch device in polling mode, the environment variable
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`TOUCH_DEV_POLLING_MODE` must be set to 1. The polling period in milliseconds
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is defined by the environment variable `TOUCH_DEV_POLLING_PERIOD`. It is
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50 ms by default. It can be changed by setting the environment variable
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`TOUCH_DEV_POLLING_PERIOD` in the make command, for example:
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```
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TOUCH_DEV_POLLING_MODE=1 TOUCH_DEV_POLLING_PERIOD=100 BOARD=... make -C tests/drivers/touch_dev flash term
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```
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