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en:odroid-xu4 [2016/11/24 10:30] – [SPI] kaklik
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 +====== Jednodeskový ARM počítač ODROID-XU4 ======
 +
 +
 +
 +===== Periferie =====
 +
 +==== SPI ====
 +
 +Čipová sada na tomto jednodeskovém počítači bohužel nemá hardwarové SPI. SPI rozhraní je proto softwarově emulované a tím pádem velmi pomalé. (Maximálně stovky kHz.)
 +
 +  sudo apt-get install device-tree-compiler
 +
 +  sudo -s
 +  fdtput -t x /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000 samsung,spi-src-clk 0
 +  fdtput -t x /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000 num-cs 0
 +  fdtput -c /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev
 +  fdtput -t s /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev compatible "spidev"
 +  fdtput -t x /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev reg 0
 +  fdtput -t i /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev spi-max-frequency 20000000
 +  fdtput -c /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev/controller-data
 +  fdtput -t x /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev/controller-data cs-gpio 0x46, 0x5, 0x0
 +  fdtput -t x /media/boot/exynos5422-odroidxu3.dtb /spi@12d30000/spidev/controller-data samsung,spi-feedback-delay 0
 +
 +[[http://odroid.com/dokuwiki/doku.php?id=en:spi_dot_matrix|source]]
  
en/odroid-xu4.txt · Last modified: 2016/11/24 10:30 (external edit)