XT5 Theory of Operations
- BrightSign TechDocs
This section describes how specific components operate on the XT245, XT1145, and XT2145.
On-Board LEDs
The four on-board LEDs have the following indicators:
LED | Indication | |
|---|---|---|
Green power (Pwr) | Displays when the board is powered up and not in reset mode. Flashes during the firmware update process. | |
Green file-system activity (Bsy) | Flashes any time there is file-system activity (on any storage device) | |
Blue WiFi () | Flashes when the board is being updated | |
Red status (Err) | Flashes a certain number of times to indicate which error is occurring. The flash codes are described below. | |
2 | Unspecified error | |
3 | Network recovery script is preparing to run on a device configured for network recovery. | |
4 | No upgrade file found | |
5 | Failed to load kernel module | |
6 | Board is not capable of running the current firmware version | |
7 | A piece of on-board hardware is not working correctly. | |
8 | Problem related to the storage device (either the USB drive or microSD card) | |
9 | Problem related to the registry/NAND | |
10 | The autorun script encountered a load/run error. | |
11 | WiFi-related error | |
12 | Unable to find a bootable image | |
On-Board Switch / SVC Button
The on-board switch is connected to the GPIO02, which is pulled low when the service (SVC) button is pressed. Conversely, a pull-up on the button normally sets the GPIO02 to be pulled high.
Reset Switch / GPIO Button
The on-board switch is connected to the reset circuit. Pressing down the reset button will send an initial signal to the system software and holding the reset button low for approximately four seconds will cause a hard reset.
MicroSD Slot
The XT245, XT1145, and XT2145 have one MicroSD slot, which supports transfer modes up to UHS-1 DDR50 (50Mbit/s). There is a 2TB limit on the storage capacity of microSD cards used with the player.
Wireless Module
The XT245, XT1145, and XT2145 have a dual antenna connection. This allows users to install a compatible wireless module without disassembling the unit. This connection has a Bluetooth option.