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I would like to access a SPI Device (Ethercat Shield) over the Arduino Headers (SPI4). What do i have to do to get the /dev/spidev... device file in Linux ? Sorry, but i'm still confused what is enabled, what do i have to enable in DTS files and when...
How long does it take (approx) to rise or lower a GPIO pin fix configured to the M4 in the STM32MP157c, after issuing the command in the M4 code ? On our native STM32F409 board it takes around 10ns. I'm afraid the STM32MP1xx is much slower right ? Re...