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GPIO Usage
thk4711 edited this page Aug 24, 2016
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3 revisions
| GPIO Number | Usage | Comment |
|---|---|---|
| 2 | I2C SDA | |
| 3 | I2C SCL | |
| 4 | encoder switch | unused in Yamaha |
| 5 | unused | |
| 6 | shutdown indicator | |
| 7 | SPI_CE1 | free |
| 8 | SPI_CE0 | Display |
| 9 | SPI_MISO | Display |
| 10 | SPI_MOSI | Display |
| 11 | SPI_CLK | Display |
| 12 | unused | |
| 13 | unused | |
| 14 | TXD | |
| 15 | RXD | |
| 16 | unused | |
| 17 | LIRC IR Reciver | |
| 18 | BCK I2S audio | |
| 19 | LRCK I2S audio | |
| 20 | DIN I2S audio | |
| 21 | DOUT I2S audio | unused |
| 22 | Encoder Pin 1 | |
| 23 | Encoder Pin 2 | |
| 24 | Display: DC | |
| 25 | Display: Reset | |
| 26 | unused | |
| 27 | Display: LED |