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zephyr/tests/drivers/gpio/gpio_basic_api
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Kumar Gala a1b77fd589 zephyr: replace zephyr integer types with C99 types 
git grep -l 'u\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/u\(8\|16\|32\|64\)_t/uint\1_t/g"
	git grep -l 's\(8\|16\|32\|64\)_t' | \
		xargs sed -i "s/s\(8\|16\|32\|64\)_t/int\1_t/g"

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-06-08 08:23:57 -05:00
..
boards tests: gpio_basic_api: change GPIOs for mec15xxevb_assy6853 2020-05-15 17:18:41 +02:00
dts/bindings tests: drivers: gpio: eliminate binding warning 2020-02-05 12:00:36 +01:00
src zephyr: replace zephyr integer types with C99 types 2020-06-08 08:23:57 -05:00
CMakeLists.txt tests: make find_package(Zephyr...) REQUIRED 2020-05-29 10:47:25 +02:00
prj.conf test/drivers/gpio: add tests for new API 2020-02-05 12:00:36 +01:00
README.txt tests: drivers: gpio_basic_api: add README 2020-02-12 13:56:11 +02:00
testcase.yaml tests: gpio_basic: this test requires a fixture 2020-05-24 20:25:51 +02:00

README.txt 

GPIO 2-Pin Test
###############

This application tests the GPIO subsystem using a hardware configuration
where two GPIOs are directly wired together.  The test pins are
identified through a test-specific devicetree binding in the `dts/`
subdirectory, implemented for specific boards by overlay files in the
`boards/` directory.

For some boards `src/main.c` may also need to be extended to configure
the selected pins for use as GPIOs.

Only boards for which an overlay is present can pass this test.  Boards
without an overlay, or for which the required wiring is not provided,
will fail with an error like this:

    Validate device GPIO_0
    Check GPIO_0 output 2 connected to input 3
    FATAL output pin not wired to input pin? (out high => in low)

No special build options are required to make use of the overlay.