Sometimes things go wrong, and you need a way to recover your system, either by restoring a backup or accessing your system to check it out and hopefully fix the issue. Krescue is a minimal firmware image (21MB compressed) for Khadas VIM boards designed to do just that, and more. Some of the highlights of Krescue firmware image include: Full eMMC flash dump/backup to Micro SD card, USB, or LAN host. Restore the compressed dump (.img.gz) into an eMMC on the same device or another device Rescue shell for expert users. Shell access via UART, USB network, and Web browser You’ll find Krescue for Khadas VIM1, VIM2, VIM3 and VIM3L on Khadas website which can be flashed to a MicroSD card using balenaEtcher. You can then insert the card into your board, and boot into maskROM mode to access the menu above, and control it with the IR remote control […]
Getting Started with Amlogic NPU on Khadas VIM3/VIM3L
Shenzhen Wesion released the NPU toolkit for Khadas VIM3/VIM3L last November, so I decided to try the latest Ubuntu 18.04 image and the NPU toolkit on Khadas VIM3L, before switching to VIM3 for reasons I’ll explain below. I’ve followed two tutorials from the forum and wiki to run pre-built samples and then building a firmware image and samples from source. Khadas VIM3L and VIM3 Have Different & Optional NPUs This will be obvious to anyone who read the specs for Khadas VIM3 and VIM3L that the former comes with a 5 TOPS NPU, while the one in the latter only delivers up to 1.2 TOPS. But somehow, I forgot about this, and assume both had the same NPU making VIM3L more attractive but this type of task, Obviously I was wrong. But the real reason I stopped using Khadas VIM3L can be seen in the photo below. My board is […]
DV8845 Amlogic S905C1 Android TV Hybrid Set-top Box Comes with DVB-T2 or DVB-C Tuner
A couple of weeks ago, we wrote about SDMC DV8919 TV box with Amlogic S905X4 processor capable of decoding 4K AV1 videos beside the usual H.265, H.264, and VP9 codecs. But it turns out the company has other devices based on a “new” Amlogic S905C1 processor, namely two hybrid set-top boxes running Android TV and equipped with either a DVB-T2 tuner (digital terrestrial TV) or a DVB-C tuner (cable). DV8845 specifications: SoC – Amlogic S905C1 quad-core Arm Cortex-A55 processor @ up to 2.0 GHz with Arm Mali-G31MP2 @ 850 MHz supporting OpenGL ES3.2, Vulkan 1.1 and OpenCL 2.0, and optional 1.2 TOPS NN inference accelerator System Memory – 2GB DDR memory (options: 1GB or 4GB) Storage – 8GB eMMC flash (options: 16GB, 32GB, 64GB) Video & Audio Output – HDMI 2.1 up to 4K @ 60+Hz with CEC & HDCP2.2, AV output with composite video and stereo audio Video Playback […]
Year 2019 in Review – Top 10 Posts and Stats
2019 is closing to an end, or you may already be into 2020 while reading this post. In any case, that means it’s time to look back at 2019 and look forward to the events and new products to take place next year. While 2018 was a boring year for new processors, 2019 brought us some interesting new chips such as Amlogic S922X / A311D, or the first Arm Cortex-A55 only processors such as Amlogic S905X3. Rockchip RK3399Pro was promising when it was announced last year, but it never really took off. It was a pretty quiet year for Allwinner as well. RISC-V architecture has been ramping up with the first general-purpose RISC-V MCU: GD32V, WCH CH572 Bluetooth LE MCU, the launch of more SiFive RISC-V cores, and Kendryte K210 RISC-V AI processor announced last year has found its way into more and more boards. There have also been the […]
SDMC DV8919 Amlogic S905X4 Android TV 10 TV Box Supports AV1 Decoding
We’ve previously covered several TV box & set-top box SoCs with support for the royalty-free AV1 video codec including Broadcom BCM7218X SoC, and Amlogic S805X2, S905X4, and S908X processors. But so far, apart from an AV1 demo on the RTD1311/RTD1319 development board (Pymparticle EVB?), and new about Technicolor Jade STB, I had not really seen AV1-capable TV boxes so far. SDMC DV8919 appears to be the first Amlogic S905X4 TV box on the market and one of the first running the recently released Android 10 on Android TV OS. SDMC DV8919 specifications: SoC – Amlogic S905X4 quad-core Arm Cortex-A55 processor @ up to 2.0 GHz with Arm Mali-G31MP2 supporting OpenGL ES3.2, Vulkan 1.1 and OpenCL 2.0 System Memory – 2GB DDR memory (options: 1GB or 4GB) Storage – 8GB eMMC flash (options: 16GB, 32GB, 64GB), MicroSD card slot Video Output – HDMI 2.1 up to 4K @ 60+Hz with CEC […]
Nebula Cosmos Max 4K Video Projector is Powered by Amlogic T962X2 Processor (Crowdfunding)
Amlogic recently launched its first Cortex-A55 processors for TV boxes with S905X3, S905Y3 & S905D3 quad-core processors, but as noted by one commenter Amlogic already had some other Cortex-A55 processor specifically designed for TVs and projectors: T950X2 for full HD systems, and T962X2 for 4K UHD systems. Most smart TVs and projectors don’t advertise which chip they are using internally but I’ve just come across Anker Nebula Cosmos Max 4K home theater/video projector featuring Amlogic T962X2 processor. Based on the illustration below they also have a Full HD model based on the same processor. But I’ll focus on the 4K model in this post. Anker Nebula Comos Max key features & specifications: SoC – Amlogic T962X2 quad-core Cortex-A55 processor @ 1.9 GHz with Arm Mali-G31MP2 GPU System Memory – 2GB RAM Storage – 16GB eMMC flash Projector 0.47″ DMD chip 4K UHD resolution (3840×2160) 30″ to 150″ display 1500 ANSI […]
Google ADT-3 is a Developer-Focused TV Box for Android TV on Android 10
Back in 2014, Google killed Google TV and announced Android TV, and as a result, introduced ADT-1, the first developer kit specifically designed for Android TV. Since then ADT-2 was introduced in 2018 in an HDMI stick form factor, and now the company has announced the launch of Android TV on Android 10 together with ADT-3 devkit targetting Android TV app development for Android 10. The “developer kit” just looks like a standard TV box, although It’s really tiny and comes with what looks like a voice remote control. Google did not provide the full specifications, but ADT-3 is equipped with a quad-core Cortex A53 processor coupled with 2GB DDR3 memory, and supports 4Kp60 HDR video playback and output via an HDMI 2.1 output port. That probably means the box is powered by an Amlogic S905X2 processor since few other TV box SoCs combine 4x A53 cores with HDMI 2.1. […]
Rikomagic MK25 Amlogic S922X TV Box Supports Digital Signage Features
Here’s another Amlogic S922X TV box. Rikomagic MK25 TV box & digital signage player comes with up to 4GB RAM and 32GB storage, HDMI 2.0 output, Gigabit Ethernet, and dual-band WiFi 5. Rikomagic MK25 specifications: SoC – Amlogic S922X hexa-core big.LITTLE processor with 4x Arm Cortex A73 cores @ up to 2.0 GHz, 2x Arm Cortex A53 cores, Arm Mali-G52MP6 (6EE) GPU; 12nm manufacturing process System Memory & Storage Configurations 2GB LPDDR4 RAM + 16GB eMMC flash, microSD card slot up to 32GB 4GB LPDDR4 RAM + 32GB eMMC flash, microSD card slot up to 32GB Video Output – HDMI 2.0 up to 4K @ 60 Hz, 3.5mm AV port (composite) Video – AVE-10 engine with 4K UHD H.265/VP9/AVS2 video decoding up to 60 fps, Dolby Vision, Advanced HDR10, HDR10+, HLG, and PRIME HDR high-dynamic range support Audio – Optical S/PDIF, digital audio via HDMI, stereo analog audio via 3.5mm […]