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zephyr/tests/drivers/spi/spi_controller_peripheral
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Karol Lasończyk 061036f9e3 tests: samples: Extend support for nRF54LM20A 
Extends support and adds new overlays.

Signed-off-by: Karol Lasończyk <karol.lasonczyk@nordicsemi.no>
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
2025-06-27 18:26:57 -05:00
..
boards tests: samples: Extend support for nRF54LM20A 2025-06-27 18:26:57 -05:00
src tests: spi: Add overlay for frdm_mcxa156 dual test 2025-06-26 11:07:55 -10:00
sysbuild/vpr_launcher
CMakeLists.txt
Kconfig
prj.conf
README.txt
testcase.yaml tests: samples: Extend support for nRF54LM20A 2025-06-27 18:26:57 -05:00

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 nrf54l15dk 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.