How I “fixed” the display on Lichee Console 4A terminal

How to fix Lichee Console 4A display

When I wrote a hands-on post about Lichee Console 4A RISC-V development terminal I noted the display would sometimes have strange effects or simply go black. I’ve now fixed the issue, and I was just probably unlucky since the issue must be rare, but I’ll still document it in case somebody encounters a similar problem and for fun! First, the video below shows what I would see on my terminal after using it for a few minutes. Since then, the display has gone completely dark, and all I see is the backlight, but I can still access the device through an SSH terminal. It looks like a bad connection issue, but I still contacted Sipeed and they told me it must have been the display connector. So I turned off the device and reopened the enclosure to remove and reinsert the cable for the display as shown in the photo […]

Lichee Console 4A portable RISC-V development terminal review – Part 1: Unboxing, teardown, and hands on

RISC-V mini laptop review

Sipeed has just sent me a “Lichee Console 4A portable RISC-V development terminal” for review. It’s a quad-core RISC-V mini laptop based on the Alibaba T-Head TH1520 processor with a 7-inch touchscreen display, and my model is equipped with a Lichee LM4A module fitted with 16GB RAM and 128GB eMMC flash. I’ll start the review of the RISC-V developer kit with an unboxing, a teardown, and a quick try with the preinstalled Debian 12 “Bookworm” image, before testing the latter in the second part of the review. The second part will take some time as we have about twenty reviews planned for now, four of which I’ll be taking care of myself… Lichee Console 4A unboxing I received the device in a package indicating I had been sent the 16GB+128GB model and reading “Lichee Console 4A portable RISC-V developer terminal” which makes it clear it’s based on RISC-V, is portable […]

Sipeed Tang Primer 25K board features 23,040 Logic Cells for FPGA prototyping and development

Sipeed Tang Primer 25K Features 23,040 Logic Cells for Efficient FPGA Prototyping and Development

Sipeed has recently introduced the Tang Primer 25K, an FPGA board powered by Gowin Semi GW5A-LV25MG121 chip. This board features 23,040 LUTs, USB Host capability, and an optional SDRAM module that unlocks vintage gaming. We have previously covered many FPGA boards like Sipeed Tang Mega 138K Pro, Fudan Micro JFM7K325T, ILYGO T-FPGA, and many other development boards by Sipeed including the Sipeed Tang Nano 20K with a Gowin GW2A FPGA. You can check those out if interested. The Tang Primer 25K development board is divided into the 25K SoM Board and the 25K Dock Board together they offer a comprehensive set of features: GW5A-LV25MG121 specifications: 23040 LUT4 23040 Registers (FF) 28x 18×18 Multipliers 6x PLLs Memory/Storage: 64Mbit NOR Flash 180K Distributed S-SRAM 1008K B-SRAM (bits) 56 Number of B-SRAM I/O Interfaces: 3x PMOD 40-pin header 2x buttons 8x I/O banks 75x General IO MIPI IO – 4lane Data USB Ports: […]

2023 Year in review – Top 10 posts, statistics, and what to expect in 2024

CNX Software Happy New Year 2024

It’s the last day and last article of the year, so we will look at some highlights of 2023, some traffic statistics on the CNX Software website, and speculate what interesting developments may happen in 2024. Looking back at 2023 The semiconductor shortage that had happened since 2020 started to fade away in early 2023, and supplies for most electronics components and devices seem to be adequate at this time, so that was a bright spot this year, and hopefully, it will stay that way in 2024 despite geopolitical tensions. We did not have any super exciting new Arm application processors from Rockchip, Amlogic, or Allwinner announced this year, although the Amlogic S928X penta-core Cortex-A76/A55 CPU started to show up in some 8K TV boxes. The launch of the Raspberry Pi 5 SBC with a Broadcom BCM2712 quad-core Cortex-A76 processor was probably the main highlight for Arm on this side […]

Sipeed Longan Pi3H – A Raspberry Pi Zero-sized board with gigabit Ethernet, WiFi 6, HDMI, and USB ports

Lichee Longan Pi3H

Sipeed Longan Pi3H is a Raspberry Pi Zero-sized single board computer (SBC) powered by an Allwinner H618 quad-core Cortex-A53 processor and equipped with full-size connectors namely an HDMI 2.0 video output, two USB 2.0 Type-A ports, and a gigabit Ethernet RJ45 jack. It also offers WiFi 6 and Bluetooth 5.4 connectivity, features the usual 40-pin GPIO header found in Pi Zero boards and relies on a USB OTG Type-C port for power. Its design is unusual for a board of that size, not only because of the full-size ports, but also because it’s comprised of a carrier board and a replaceable LM3H CPU module with the Allwinner H618 SoC, RAM, and eMMC flash. Sipeed Longan Pi3H specifications: SoC – Allwinner H618 CPU – Quad-core Arm Cortex-A53 processor @ up to 1.5GHz with 1MB L2 cache GPU – Arm Mali-G31 MP2 GPU with support for OpenGL ES 1.0/2.0/3.2, OpenCL 2.0, Vulkan […]

Lichee Console 4A RISC-V mini laptop sells for $252 and up

Sipeed Lichee Console 4A

Sipeed Lichee Console 4A is a RISC-V portable Linux console, that I would also call a RISC-V mini laptop, powered by an Alibaba T-Head TH1520 quad-core C910 processor and equipped with up to 16GB RAM and 128GB eMMC flash. We first covered the device last August, but Sipeed had started taking pre-ordered by the end of October, and they’ve gone through the first batch of mass production, and should soon ship the mini laptops with the Aliexpress store showing December 31 as the release date, and we’re told some samples may have already been shipped in the first part of the month. Lichee Console 4A specifications: SoM – Replaceable Lichee LM4A system-on-module based on TH1520 quad-core RISC-V C910 processor with up to 16GB LPDDR4X, 128GB eMMC flash Storage – MicroSD card slot, M.2 SSD support Display – 7-inch 1280 x 800 LCD with capacitive touch Video Output – 1x mini […]

International Black Friday and Cyber Monday 2023 deals and coupon codes

Alixexpress Black Friday 2023

We’ve been writing about international Black Friday and Cyber Monday deals and coupon codes since 2014, as US-centric promotions such as Amazon’s Black Friday and Cyber Monday deals are not always available to the international audience of CNX Software. So once again, we’ve searched at Black Friday and Cyber Monday 2023 international promotions and discount codes from specific manufacturers as well as popular online stores such as Aliexpress, Banggood, and others. Aliexpress Black Friday and Cyber Monday event Aliexpress will have a Black Friday (and Cyber Monday) event in 2023, but we have limited details at this time since it will only start on November 23, contrary to some of the other deals we’ll feature below which are already up and running. But the event will have two periods: Nov 20-22 PT – Warm Up event where users can find and add items to the cart before purchasing during the […]

Alibaba T-Head TH1520 user manuals released

Alibaba T-Head TH1520 user manuals

Further Alibaba T-Head TH1520 quad-core RISC-V processor documentation has been released with nine user manuals covering video and audio processing, peripheral interfaces, memory interfaces, system registers, and the built-in NPU for video acceleration. We first noted the TH1520 RISC-V SoC in the expensive web3-focused ROMA laptop in October 2022, but since then there have been some very interesting developments with the release of Sipeed’s Lichee Pi 4A SBC and various other platforms based on the LM4A system-on-module plus the BeagleBoard.org’s BeagleV Ahead. Both boards also have preliminary support in mainline Linux with the Lichee Pi 4A making it to Linux 6.5, and the BeagleV Ahead was added to the just-released Linux 6.6 kernel. However I had not noticed documentation for the processor was not released publicly until now as both Sipeed and Beagleboard.org have now made available nine user manuals in English, and the Sipeed link has the Chinese versions […]