XDx34 Theory of Operation
This section describes how specific components operate on the XD234 and XD1034.
On-Board LEDs
There are four on-board LEDs that indicate the following:
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 player is connecting to the wireless network. Displays when connected. | |
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. | |
13 | The root file system has failed verification, which is used to detect whether the file system has been tampered with. You can recover a player that is showing this error code by performing a firmware update with secure boot. | |
14 | Boot loader failure | |
Red alternate* | 2 | Erase failed |
3 | Write failed | |
4 | Verify failed | |
5 | Failed to find UBI partition | |
6 | Attempt to write unsigned CFE to unit with secure boot enabled | |
7 | Failed to find UBI partition | |
8 | Failed to create/attach UBI partition | |
9 | Unexpected error | |
10 | Upgrade script exited abnormally | |
11 | Upgrade took longer than expected | |
12 | Update completed but update file could not be deleted | |
13 | Firmware update file could not be read (from firmware v5.1.40) |
*The red status LED may give one long initial flash to preface an alternate code, described at right
Service Button
The Service (SVC) button provides a dedicated GPIO button (GPIO12) for the OS. Pressing the SVC button pulls the pin low. Conversely, releasing the button pulls the pin high.
Reset Button
The Reset button 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 4 seconds will cause a hard reset.
microSD Slot
The XD234 and XD1034Â have one microSD slot, which supports transfer modes up to UHS-1 DDR50 (50MB/s). There is no inherent limit on the storage capacity of microSD cards used with the player.
Wireless Module
The XD234 and XD1034Â have an internal M.2 slot (key E) for installing a compatible wireless module. The M.2 wireless module connects via cables to two external, attachable wireless antennas.
SSD Module
The XD234 and XD1034 have an internal M.2 slot (key M) slot for PCIe (NVMe) SSD drives. See this page for a full list of SSD specifications.