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| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
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en:xu3_expansionboard [2016/05/18 15:24] charles.park |
en:xu3_expansionboard [2016/05/18 18:11] odroid [SPI Flash Control on Expansion Board] |
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| ==== SPI Flash Control on Expansion Board ==== | ==== SPI Flash Control on Expansion Board ==== | ||
| - | To use spidev on your **ODROID-XU4** you should fix device tree source. | + | To use spidev on your **ODROID-XU4/XU3** you must edit/compile the device-tree source first. |
| - | ==== How to fix device tree blob with command line ==== | + | === How to fix device tree blob with command line === |
| Install device tree compiler package. | Install device tree compiler package. | ||
| sudo apt-get install device-tree-compiler | sudo apt-get install device-tree-compiler | ||
| - | Create exynos5422-odroidxu3.dts file. | + | Generate an exynos5422-odroidxu3.dts file from the stock dtb file. |
| <code> | <code> | ||
| sudo -s | sudo -s | ||
| Line 93: | Line 93: | ||
| <WRAP center round important 100%> | <WRAP center round important 100%> | ||
| - | controller-data 안의 **cs-gpio**값은 **cs-gpios** 와 동일하게 설정되어야 합니다. | + | The value of **cs-gpio** must be identical to **cs-gpios** in controller-data section. |
| </WRAP> | </WRAP> | ||
| Line 106: | Line 106: | ||
| ls /dev/spidev* | ls /dev/spidev* | ||
| - | ==== Compile & run SPI test example source code ==== | + | After update, you might need a hard-boot. Reboot doesn't access the updated dtb file from time to time. |
| + | |||
| + | === Compile & run SPI test example source code === | ||
| <code> | <code> | ||
| gcc -o spi_flash_test spi_flash_test.c | gcc -o spi_flash_test spi_flash_test.c | ||
| + | sudo ./spi_flash_test | ||
| </code> | </code> | ||
