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docs: comma 3X to comma four (#37009)

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* comma 3X -> comma four

* add comma four ports image
This commit is contained in:
Lukas
2026-01-21 00:15:12 +01:00
committed by GitHub
parent 6c7f3751e7
commit a7dfd36c00
12 changed files with 29 additions and 25 deletions
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docs/how-to/connect-to-comma.md
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@@ -1,19 +1,20 @@
# connect to a comma 3X
# Connect to comma 3X or comma four
A comma 3X is a normal [Linux](https://github.com/commaai/agnos-builder) computer that exposes [SSH](https://wiki.archlinux.org/title/Secure_Shell) and a [serial console](https://wiki.archlinux.org/title/Working_with_the_serial_console).
A comma four is a normal [Linux](https://github.com/commaai/agnos-builder) computer that exposes [SSH](https://wiki.archlinux.org/title/Secure_Shell) and a [serial console](https://wiki.archlinux.org/title/Working_with_the_serial_console).
## Serial Console
On both the comma three and 3X, the serial console is accessible from the main OBD-C port.
On the comma 3X, the serial console is accessible from the main OBD-C port.
Connect the comma 3X to your computer with a normal USB C cable, or use a [comma serial](https://comma.ai/shop/comma-serial) for steady 12V power.
On the comma three, the serial console is exposed through a UART-to-USB chip, and `tools/scripts/serial.sh` can be used to connect.
On the comma 3X, the serial console is accessible through the [panda](https://github.com/commaai/panda) using the `panda/tests/som_debug.sh` script.
The serial console is accessible through the [panda](https://github.com/commaai/panda) using the `panda/tests/som_debug.sh` script.
* Username: `comma`
* Password: `comma`
> [!NOTE]
> Serial console access through the OBD-C port is not available on the comma four. On comma four devices, serial access requires opening the device to access the internal debug connector.
## SSH
In order to SSH into your device, you'll need a GitHub account with SSH keys. See this [GitHub article](https://docs.github.com/en/github/authenticating-to-github/connecting-to-github-with-ssh) for getting your account setup with SSH keys.
@@ -34,7 +35,7 @@ For doing development work on device, it's recommended to use [SSH agent forward
In order to use ADB on your device, you'll need to perform the following steps using the image below for reference:
![comma 3/3x back](../assets/three-back.svg)
![comma four ports](../assets/four-ports.svg)
* Plug your device into constant power using port 2, letting the device boot up
* Enable ADB in your device's settings
@@ -45,7 +46,7 @@ In order to use ADB on your device, you'll need to perform the following steps u
* Here's an example command for connecting to your device using its tethered connection: `adb connect 192.168.43.1:5555`
> [!NOTE]
> The default port for ADB is 5555 on the comma 3X.
> The default port for ADB is 5555 on the comma four.
For more info on ADB, see the [Android Debug Bridge (ADB) documentation](https://developer.android.com/tools/adb).
docs/how-to/replay-a-drive.md
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@@ -8,7 +8,7 @@ Replaying is a critical tool for openpilot development and debugging.
Just run `tools/replay/replay --demo`.
## Replaying CAN data
*Hardware required: jungle and comma 3X*
*Hardware required: jungle and comma four*
1. Connect your PC to a jungle.
2.