Dongshan Nezha STU devkit features Allwinner D1 RISC-V SoM/SBC

Dongshan Nezha STU

Dongshan Nezha STU is a development kit comprised of an Allwinner D1 RISC-V system-on-module (SoM) and a carrier board with three 40-pin headers to access I/Os from the RISC-V processor. While not quite as compact as the Sipeed LicheeRV module, the “Dongshan Nezha STU Core” module also doubles as a standalone single board computer (SBC) with USB-C, Ethernet and HDMI ports, plus a MicroSD card socket for the firmware, which reminds me of the Khadas Edge design. Dongshan Nezha STU specifications: Nezha STU Core SoM SoC – Allwinner D1 single-core XuanTie C906 64-bit RISC-V processor @ 1.0 GHz with HiFi4 DSP, G2D 2D graphics accelerators Memory – 512MB DDR3 memory (option up to 2GB – TBC) Storage – MicroSD card slot, 2Gbit serial NAND flash (MX35LF1GE4AB); Note the SPI NAND flash (U12) is not populated in the photo below. Video – HDMI port up to 1080p60 Networking – Low-profile Gigabit […]

$39 MangoPi-Nezha MQ RISC-V developer board runs OpenWrt, Debian, or RT-Smart RTOS (Crowdfunding)

MangoPi Nezha-MQ Linux RISC-V SBC

MangoPi-Nezha MQ tiny developer board with Allwinner F133-A (aka Allwinner D1s) RISC-V processor with 64MB on-chip RAM has just launched on Crowd Supply for $39, and delivery is expected in July 2022. The 4x4cm development board comes with a MicroSD card slot, display and camera interfaces, an on-board microphone, as well as WiFi connectivity, two USB Type-C ports, and two 22-pin headers for expansion. MangoPi-Nezha MQ specifications: SoC – Allwinner F133-A 64-bit RISC-V processor @ 1 GHz with 64 MB DDR2 Storage MicroSD card slot Footprint for SPI NAND/NOR flash Display I/F 15-pin FPC connector Raspberry Pi DSI display 40-pin FPC connector for RGB display with 4-wire resistive-touch interface 6-pin FPC connector for capacitive touch Camera I/F – 24-pin DVP interface (usable as RMII) Audio – On-board microphone, audio output via 2-pin header (unpopulated) Connectivity 2.4 GHz WiFi 4 via Realtek RTL8189 module plus u.FL antenna connector 10/100Mbps Ethernet (RMII) […]

Fixing performance issues with Realtek RTL8156B 2.5GbE USB dongle in Ubuntu

cdc_ncm vs r8152 drivers ubuntu

A few days ago, I reviewed a USB 3.0 to 2.5 Gbps Ethernet adapter based on Realtek RTL8156B chip in Ubuntu 20.04, and let’s say the reliability and performance were underwhelming. I got some recommendations like changing cables, the MTU size, etc… Playing around with cables did no help, but one comment mentioned the cdc_ncm driver could be the issue, followed by another saying that updating to Linux kernel 5.14 should install the correct r8152 driver… So I just did that:

This upgraded Linux 5.13 (shipped with Ubuntu 20.04 + HWE) to Linux 5.14, but still no luck as the system kept using the cdc_ncm driver with a half-duplex link:

But then I thought I may have to use udev rules to prevent loading the cdc_ncm driver, and there’s indeed 50-usb-realtek-net.rules in r8152 driver to do just that. So I copied the file in /etc/udev/rules.d/ folder. Since I […]

RISC-V or Arm? This tiny 4x4cm Linux board with WiFi offers both options

Arm RISC-V MangoPi MQ boards

Last fall, we wrote about Allwinner D1s/F133-A RISC-V processor and the upcoming MangoPi MQ1, a tiny 4x4cm board based on the processor. The board is not for sale, but we have more details, and the company is also working on an Arm version equipped with Allwinner T113-S3 dual-core Cortex-A7 processor that is pin-to-pin compatible with F133-A SoC. The Allwinner F133-A board will finally be called MangoPi Nezha-MQ, or MangoPi MQ for shorts, and come with 64MB on-chip RAM while the Allwinner T113-S3 board, with 128MB on-chip RAM, will be named MangoPi MQ-Dual. Both are fitted with a Realtek RTL8189-based Wi-Fi module, offer display and camera interfaces, two USB-C interfaces, and headers for GPIOs. MangoPi MQ RISC-V or Arm Linux board MangoPi MQ/MQ-Dual specifications: SoC (one or the other) MangoPi MQ – Allwinner D1s/F133-A 64-bit RISC-V processor @ 1 GHz with 64 MB DDR2 MangoPi MQ-Dual – Allwinner T113-S3 32-bit dual-core […]

Allwinner T113-S3 dual-core Cortex-A7 SoC features 128MB DDR3, targets automotive and industrial applications

Allwinner T113-S3 block diagram

Allwinner T113-S3 is a dual-core Cortex-A7 processor with 128MB DDR3 on-chip memory that is designed for smart control and HMI applications in the automotive and industrial sectors. At first glance, the new processor looks quite similar to Allwinner S3, but with twice the number of cores. However there’s more to it, as a a HiFi4 DSP has been added for smart audio applications, the H.264 encoder is gone replaced by an MPJEG encoder, and the company claims support for “industrial level working temperature”, plus a 10-year life cycle. among other differences. Allwinner T113-S3 specifications: CPU – Dual-core Arm Cortex-A7 with 32 KB L1 I-cache + 32 KB L1 D-cache per core, and 256 KB L2 cache DSP – Single-core HiFi4 Memory – 128 MB DDR3 Storage I/F – SD3.0/eMMC 5.0, SPI Nor/NAND Flash Video Decoding – H.264, H.265, MPEG-1/2/4, (M)JPEG, VC1 up to 1080p60 Encoding – JPEG/MJPEG up to 1080p60 […]

Orange Pi R1 Plus LTS sells with metal enclosure for $35.99

Orange Pi R1 Plus LTS metal enclosure

Shenzhen Xunlong Software previously launched the Orange Pi R1 Plus LTS router board powered by Rockchip RK3328 quad-core processor last November for $27.99 on Aliexpress. As expected, albeit with some delays, the company has now introduced a metal enclosure for the Orange Pi R1 Plus LTS board transforming it into a complete router or gateway. You can get it as part of a kit for $35.99 plus shipping, or if you’ve already purchased the board previously, get the enclosure only for $9 plus shipping. Orange Pi R1 Plus LTS router/gateway specifications: SoC – Rockchip RK3328 quad-core Cortex-A53 @ 1.5 GHz with Arm Mali-450MP2 System Memory – 1GB LPDDR3 RAM Storage – MicroSD card slot, 16 MB SPI flash Connectivity 2x Gigabit Ethernet via YT8531C Ethernet PHY and RTL8153B USB 3.0 to Ethernet chip; both tested by the company up to 945 Mbps Tx and 963 Mbps Rx On-board WiFi is not […]

CHUWI LarkBox X mini PC is powered by an AMD Ryzen 7 3700U mobile processor

Chuwi Larkbox X

CHUWI LarkBox X is an affordable mini PC based on a 15W AMD Ryzen 7 3700U mobile processor coupled with 8GB of RAM, a 256GB NVMe SSD, dual Gigabit Ethernet, 4K video output, and more. Contrary to the earlier Celeron-based LarkBox and LarkBox Pro palm-sized mini PCs, the LarkBox X comes with a larger form factor providing additional ports and possibly better cooling for the more performant AMD processor. LarkBox X specifications: SoC – AMD Ryzen 7 3700U quad-core/eight-thread processor @ 2.30GHz / 4.0GHz (Turbo) with Radeon RX Vega 10 Graphics; 15W TDP System Memory – 8GB DDR4, dual channels via 2x 260-pin DDR4 SO-DIMMs (upgradeable up to 32GB RAM) Storage – 256GB NVMe M.2 2280 SSD (PCIe 3.0) upgradable up to 2TB Video Output 1x HDMI 2.0 up to 4Kp60 1x DisplayPort up to 4Kp60 1x USB Type -C up to 4Kp30 with DisplayPort Alt. mode Three independent displays […]

Lantronix G520 cellular gateways target industrial communication, cybersecurity, and transportation

Lantronix G520

Lantronix G520-series 4G LTE Cat 4 and 5G cellular gateways are designed to address challenges in Industry 4.0, security, and transportation markets with three/four separate gateways all based on an unnamed ARM926EJ-S-based CPU running at 600 MHz that’s most likely Microchip SAM9X60 processor introduced in 2020. All gateways are from the same base with variation for specific markets: G526 Industrial Gateway with LTE Cat 4 Ethernet, Serial, I/O, Fieldbus conversion, and other industrial protocols G527/G528 Security Gateway with LTE Cat 13 or 5G, built-in cryptographic secure element and PSE-PoE G528 Transportation Gateway (coming soon) with LTE Cat 4, GNSS, accelerometer, CAN Bus reading, and other tracking features Lantronix G520-series specifications: SoC – ARM926EJ-S-based processor running at 600 MHz with 32 KB instruction cache and 32KB data cache System Memory – 256MB DDR2 SDRAM Storage – 8MB SPI flash for OS,  256MB parallel NAND flash, MicroSD slot, or USB flash drive […]

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