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December 17, 2015May 29, 2017 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

ADBoard 3G/4G Digital Signage Board is Powered by Allwinner A83T Octa-Core Processor

MQMaker officially launched their WiTi router board earlier this week, but the company has also introduced ADBoard, an octa-core board specifically designed for digital signage with a connector for LVDS display including backlight, an RTC with backup battery, and a mini PCIe connector for 3G/4G connectivity combined with a SIM card slot. ADBoard specifications: SoC – Allwinner A83T octa-core ARM Cortex-A7 @ 2.0 GHz with PowerVR SGX544MP GPU @ 700 MHz supporting OpenGL ES 2.0/1.1, OpenCL 1.1, and DX 9.3. System Memory – 1 GB DDR3 Storage – 16 GB eMMC + micro SD slot Display Interfaces / Video Output HDMI up to 1080p60 with HDCP 1.2 and CEC support connector LVDS connector, LCD backlight control header and capacitive touch panel header Audio – HDMI, 3.5mm audio output, speaker connector, microphone connector Connectivity – Gigabit Ethernet, 802.11 b/g/n Wi-Fi and Bluetooth 4.0 USB – 1x USB 2.0 host port, 1x […]

January 20, 2015 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

Independent Dual Display Support on Firefly-RK3288 Development Board (Video)

From time to time, I’m being asked which platform can support dual independent displays, and although I noticed Mele A1000 (Allwinner A10) did support dual displays in Linux, I never really investigated how well it handles it, so I normally recommend to have a look at x86 platforms with AMD or Intel processor that specifically claim support for dual independent display. But today, I’ve noticed a developer working for T-Chip posted a nice demo on T-Firefly forums with two displays connected via HDMI and VGA. The demo shows Firefly-RK3288 development board running Android with two displays in three configurations: Display Mirroring – The same content is shown on both display. Especially useful for digital signage application, where one board can drive two displays with the same content Extended Desktop – The user interface is extended on both monitors. It’s like having a single large monitor with a 32:9 aspect ratio […]

November 8, 2011November 8, 2011 by Jean-Luc Aufranc (CNXSoft) - No Comments

Board Bringup: LCD and Display Interfaces – ELCE 2011

Presentation “Board Bringup: LCD and Display Interfaces” by David Anders, Texas Instruments, at Embedded Linux Conference Europe 2011. Board bringup is one of the most under documented aspects of embedded development. This presentation looked at the various display technologies such as DisplayPort, DVI, LVDS, and other LCD interfacing methods with emphasis on how to bringup, debug, and validate them on new hardware. Using a case study, aspects such as interfacing timing, extended display identification data(EDID), and backlight controls have been discussed. Most embedded linux developers at some point in their career will be handed a piece of hardware that is untested. LCD bringup is one of the most challenging assignments for an embedded developer. This presentation intends to provide some core tools and methods for bringup of a new display interface. You can also download the presentation slides Jean-Luc Aufranc (CNXSoft)Jean-Luc started CNX Software in 2010 as a part-time endeavor, […]