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zephyr/tests/drivers/spi/spi_controller_peripheral
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Nikodem Kastelik 23b4706e47 tests: drivers: spi: nordic: add fast SPI to overlays 
SPIM12x have more capabilities than SPIM13x,
so it should be tested separately.

Signed-off-by: Nikodem Kastelik <nikodem.kastelik@nordicsemi.no>
2024-06-05 14:42:50 +01:00
..
boards tests: drivers: spi: nordic: add fast SPI to overlays 2024-06-05 14:42:50 +01:00
src
CMakeLists.txt
Kconfig
prj.conf
README.txt
testcase.yaml tests: drivers: spi: nordic: add fast SPI to overlays 2024-06-05 14:42:50 +01:00

README.txt 

In this test suite two instances of the SPI peripheral are connected together.
One SPI instance works as a controller, second one is configured as a peripheral.
In each test, both instances get identical configuration (CPOL, CPHA, bitrate, etc.).

Four GPIO loopbacks are required (see overlay for nrf54l15pdk for reference):
1. spi22-SPIM_SCK connected with spi21-SPIS_SCK,
2. spi22-SPIM_MISO connected with spi21-SPIS_MISO,
3. spi22-SPIM_MOSI connected with spi21-SPIS_MOSI,
4. spi22-cs-gpios connected with spi21-SPIS_CSN.