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Arduino Yun cheat sheet: Difference between revisions
→YUN と SPI と ICSP と avrdude
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SPI: on the ICSP header. These pins support SPI communication using the SPI library. Note that the SPI pins are not connected to any of the digital I/O pins as they are on the Uno, They are only available on the ICSP connector. This means that if you have a shield that uses SPI, but does NOT have a 6-pin ICSP connector that connects to the Yún's 6-pin ICSP header, the shield will not work. The SPI pins are also connected to the AR9331 gpio pins, where it has been implemented in software the SPI interface. This means that the ATMega32u4 and the AR9331 can also communicate using the SPI protocol. | SPI: on the ICSP header. These pins support SPI communication using the SPI library. Note that the SPI pins are not connected to any of the digital I/O pins as they are on the Uno, They are only available on the ICSP connector. This means that if you have a shield that uses SPI, but does NOT have a 6-pin ICSP connector that connects to the Yún's 6-pin ICSP header, the shield will not work. The SPI pins are also connected to the AR9331 gpio pins, where it has been implemented in software the SPI interface. This means that the ATMega32u4 and the AR9331 can also communicate using the SPI protocol. | ||
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AR9331 の GPIO と共有しているらしい。それを利用してまさしく ICSP | AR9331 の GPIO と共有しているらしい。それを利用してまさしく ICSP でプログラムを書き込んでいる。ネットワーク経由でプログラムを書き込む(AR9331 OpenWrt を AVR ライターとして使う)場合は、ICSP 端子には何もつながないようにすること。 | ||
== YUN と SPI と RX LED == | == YUN と SPI と RX LED == | ||