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| Both sides previous revision Previous revision Next revision | Previous revision | ||
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en:xu3_hardware_spi [2016/12/09 11:20] charles.park [Reading the SPI Flash device ID on Expansion-Board] |
en:xu3_hardware_spi [2016/12/24 12:15] (current) odroid [Reading the SPI Flash device ID on Expansion-Board] |
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| </WRAP> | </WRAP> | ||
| - | === How to enable driver (Ubuntu 16.04 only need) === | + | === How to enable driver (Only Ubuntu 16.04 or higher is required) === |
| Edit /etc/modprobe.d/blacklist-odroid.conf to comment out following two ines. | Edit /etc/modprobe.d/blacklist-odroid.conf to comment out following two ines. | ||
| <code> | <code> | ||
| Line 35: | Line 35: | ||
| 34 34 34 34 | 34 34 34 34 | ||
| </code> | </code> | ||
| + | |||
| + | If you tie the MOSI and MISO pins, the output is "AB 00 00 00".\\ | ||
| + | We call it loopback test. | ||
| + | |||
| <file c spidev_test.c> | <file c spidev_test.c> | ||
| /* | /* | ||
