> For the complete documentation index, see [llms.txt](https://dev.solid-run.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.solid-run.com/nxp/imx6/sbc-platform/imx6-other-articles/hummingboard-edge-gate-gpios.md).

# HummingBoard Edge/Gate GPIOs

### Description

GPIO, or General-Purpose Input/Output is a mechanism that allows a computing board to provide electrical contacts for signalling to a wide range of external devices. These pins allow commercial and hobbyist projects to do things like communicate with a “breakout board”, or individual physical modules – like a motor. Below is the layout of the GPIOs on the HummingBoard Gate/Edge:

![](/files/t1oMHJmHVbCOZlAk5Mya)

|                 |              |                 |               |         |    |                |                 |              |                 |
| --------------- | ------------ | --------------- | ------------- | ------- | -- | -------------- | --------------- | ------------ | --------------- |
| **GPIO Number** | **GPIO Row** | **GPIO Column** |               |         |    |                | **GPIO Number** | **GPIO Row** | **GPIO Column** |
|                 |              |                 |               | **J21** |    |                |                 |              |                 |
|                 |              |                 | 3.2V          | 1       | 2  | 5V             |                 |              |                 |
| 73              | 3            | 9               | DISP1\_DAT00  | 3       | 4  | DISP1\_DAT01   | 72              | 3            | 8               |
| 69              | 3            | 5               | DISP1\_DAT04  | 5       | 6  | DISP1\_DAT05   | 68              | 3            | 4               |
|                 |              |                 |               | **J23** |    |                |                 |              |                 |
| 77              | 3            | 13              | DI1\_D0\_CS   | 1       | 2  | DI1\_D1\_CS    | 78              | 3            | 14              |
| 65              | 3            | 1               | DISP1\_DAT08  | 3       | 4  | DISP1\_DAT09   | 64              | 3            | 0               |
| 53              | 2            | 21              | DISP1\_DAT12  | 5       | 6  | DISP1\_DAT13   | 52              | 2            | 20              |
| 49              | 2            | 17              | DISP1\_DAT16  | 7       | 8  | DISP1\_DAT17   | 48              | 2            | 16              |
| 95              | 3            | 31              | DISP1\_DAT20  | 9       | 10 | DISP1\_DAT21   | 94              | 3            | 30              |
|                 |              |                 | GND           | 11      | 12 | DI1\_DISP\_CLK | 54              | 2            | 22              |
|                 |              |                 |               | **J22** |    |                |                 |              |                 |
| 74              | 3            | 10              | DI1\_PIN15    | 1       | 2  | DI1\_PIN02     | 75              | 3            | 11              |
| 71              | 3            | 7               | DISP1\_DATA02 | 3       | 4  | DISP1\_DATA03  | 70              | 3            | 6               |
| 67              | 3            | 3               | DISP1\_DATA06 | 5       | 6  | DISP1\_DATA07  | 66              | 3            | 2               |
|                 |              |                 |               | **J24** |    |                |                 |              |                 |
| 79              | 3            | 15              | DI1\_PIN01    | 1       | 2  | DI1\_PIN03     | 76              | 3            | 12              |
| 61              | 2            | 29              | DISP1\_DATA10 | 3       | 4  | DISP1\_DATA11  | 60              | 2            | 28              |
| 51              | 2            | 19              | DISP1\_DATA14 | 5       | 6  | DISP1\_DATA15  | 50              | 2            | 18              |
| 166             | 6            | 6               | DISP1\_DATA18 | 7       | 8  | DISP1\_DATA19  | 132             | 5            | 4               |
| 90              | 3            | 26              | DISP1\_DATA22 | 9       | 10 | DISP1\_DATA23  | 91              | 3            | 27              |
| 24              | 1            | 24              | SPDIF\_IN     | 11      | 12 | SPDIF\_OUT     | 204             | 7            | 12              |

### Pinout Names

These are all documented in the device-tree files. By default all are GPIO pins.

[https://github.com/SolidRun/linux-fslc/blob/3.14-1.0.x-mx6-sr/arch/arm/boot/dts/imx6qdl-hummingboard2.dtsi#L328](https://github.com/SolidRun/linux-fslc/blob/3.14-1.0.x-mx6-sr/arch/arm/boot/dts/imx6qdl-hummingboard2.dtsi#l328)


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