risc-v News - Page 33 of 55 - CNX Software

December 4, 2021December 4, 2021 by Jean-Luc Aufranc (CNXSoft) - No Comments

ESP32-C3 AWS IoT ExpressLink module & devkit aim to ease connection to AWS IoT services

Amazon and Espressif have launched another wireless module with the ESP32-C3 AWS IoT ExpressLink module together with a development kit supporting out-of-the-box AWS IoT connectivity, following their earlier collaboration with the launch of the ESP32-PICO-V3-ZERO Alexa Connect Kit Module last summer. Also called the “ESP32-C3-MINI-1-N4-A”, the ESP32-C3 AWS IoT ExpressLink module implements the AWS IoT ExpressLink specification and provides AWS IoT Core connectivity to a host MCU via AT commands over a UART interface. Pre-provisioned and pre-programmed with ease integration the module supports WiFi configuration, messaging, OTA, and device management. The compact (16.6 x 13.2mm) ESP32-C3 module is currently offered as part of the ESP32-C3-AWS-ExpressLink-DevKit development board following the Arduino Zero board form factor allowing it to be plugged into the Arduino board, or easily connect to other host systems such as the Raspberry Pi. The goal is to simplify the deployment of IoT solutions removing the need for […]

December 3, 2021December 3, 2021 by Jean-Luc Aufranc (CNXSoft) - 20 Comments

SiFive Performance P650 RISC-V core to outperform Arm Cortex-A77 performance per mm2

About six months have passed since the SiFive announcement of the Performance P550 “fastest 64-bit RISC-V processor” ever, and the company has now introduced an even faster RISC-V core with the Performance P650 that’s expected to match Cortex-A77 performance. Building upon the Performance P550 design, the SiFive Performance P650 is scalable to sixteen cores using a coherent multicore complex, and delivers a 40% performance increase per clock cycle based on SiFive engineering estimated performance in SPECInt2006/GHz, thanks to an expansion of the processor’s instruction-issue width. The company compares P650 to the Arm family by saying it “maintains a significant performance-per-area advantage compared to the Arm Cortex-A77”. SiFive Performance P650 key features: 64-bit RISC-V (RV64GCB) core Sv39/Sv48 Virtual Memory Support Multi-core, multi-cluster processor configurations with up to 16 cores Performance > 11 SpecINT2006/GHz Thirteen stage, four-issue, out-of-order pipeline tuned for scalable performance Private L2 Caches and Streaming Prefetcher for improved memory […]

November 27, 2021May 27, 2022 by Jean-Luc Aufranc (CNXSoft) - 17 Comments

VisionFive V1 RISC-V Linux SBC resurrects BeagleV StarFive single board computer

Last summer we reported that BeagleV StarFive RISC-V SBC would not be manufactured, but all was not lost as StarFive would collaborate with Radxa to make a new single board computer based on their JH7100 dual-core 64-bit RISC-V processor. But thanks to a report on Heise and extra photos acquired by CNX Software, we now have more details about the board that mostly comes with the same features as the BeagleV StarFive, but a completely different layout that brings all the main ports to one side of the board. VisionFive V1 specifications: SoC – StarFive JH7100 Vision SoC with: Dual-core Sifive U74 RISC-V processor @ 1.5 GHz with 2MB L2 cache Vision DSP Tensilica-VP6 for computing vision NVDLA Engine 1 core (configuration 2048 MACs @ 800MHz – 3.5 TOPS) Neural Network Engine (1024MACs @ 500MHz – 1 TOPS) VPU – H.264/H.265 decoder up to 4Kp60, dual-stream decoding up to 4Kp30 […]

November 24, 2021November 26, 2021 by Jean-Luc Aufranc (CNXSoft) - 22 Comments

Sipeed LicheeRV – A $16.90 Allwinner D1 Linux RISC-V board

Finally! There’s now a much more affordable Allwinner D1 RISC-V Linux board thanks to Sipeed LicheeRV Nezha CM SBC sold for $16.90 and up on Aliexpress, that’s much cheaper than the $100 asked for Nezha SBC, although still not incredibly cheap as we’ll see from the specifications below. Sipeed LicheeRV is actually both a board and a system-on-on-module with an edge connector, and is equipped with 512MB DDR3, a USB-C OTG port, a MicroSD card socket, and an SPI display interface. The dual M.2 edge connector can be plugged into a carrier board, and they will be a “86 Box” (86x86mm) for HMI display that can be used for home automation. Sipeed Lichee RV specifications: 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 @ 792 MHz Storage – MicroSD card slot Video – […]

November 11, 2021December 20, 2021 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

Renesas RH850/U2B automotive SoC features RISC-V-based parallel co-processor

Renesas Electronics RH850/U2B is an automotive SoC designed for electronic control unit (ECU) with used for hybrid ICE and xEV traction inverter, high-end zone control, connected gateways, and vehicle motion applications. The processor includes up to eight 400MHz RH850 32-bit RISC performance cores with four of them in lockstep architecture for ASIL-D and ASIL-B compliance, as well as DR1000C RISC-V-based parallel co-processor (data flow processor) with vector extension (DFP) from NSITEXE designed to support “the fast execution of complex mathematical algorithms”. Renesas RH850/U2B key features & specifications: CPU cores – 400MHz speed for up to 8+4 (LockStep) RH850 G4MH CPUs Memory – Up to 5.1MB RAM on-chip Storage Up to 32MB Flash on-chip SFMA (Serial flash memory interface), eMMC interfaces for external storage Co-Processor – DR1000C RISC-V based MIMD high-performance embedded vector processor Embedded EMU3S (Embedded motor control unit), RDC3X (Position sensor interface), TSG3 (motor timer) for field-oriented traction motor […]

November 11, 2021November 11, 2021 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Giveaway Week 2021 winners announced!

Giveaway Week 2021 is now over, and I’m ready to announce the winners. This year, CNX Software was joined by Rakwireless and Shenzhen Xunlong Software, as I did not have enough hardware to send out. I also had planned to give away Crowbits Master Kit, but when I realized the ESP32 module had a battery, I would have had to ask $100 just for shipping, plus having the risk of messing things up, since I’ve never sent devices with batteries with the new regulations. Nevertheless, the void was filled thanks to the generosity of Rakwireless who offered a solar-powered LoRa GPS tracker, and Shenzhen Xunlong Software who proposed an Orange Pi R1 SBC with a plastic enclosure. Let’s go through the list of winners located in four continents with Europe, North America, Asia, and Oceania represented: NanoPi R2S gateway – Jason, CANADA WisBlock Kit 2 LoRa-based GPS Tracker with Solar […]

November 5, 2021November 7, 2021 by Jean-Luc Aufranc (CNXSoft) - 148 Comments

Giveaway Week – Bluetrum AB32VG1 RISC-V board

The next prize for our once-in-a-year giveaway week is Bluetrum AB32VG1 RISC-V development board based on Bluetrum AB5301A MCU. The board is designed for Bluetooth audio applications as well as general-purpose applications and comes with Arduino headers for expansion. A USB Type-C cable is also included for power and programming. I tested the RISC-V board with RT-Thread open-source operating systems, and let’s say it was quite challenging because development tools need to be improved, but RT-Thread developers are committed to providing a better experience to developers. What’s important is that in the end, after some efforts, I managed to blink an LED and play some music through a pair of speakers connected to the 3.5mm audio jack, and the USB port for power. At the time of review, there was no Bluetooth sample, and a quick look at the documentation shows it may not be available just yet. If you’d […]

November 2, 2021November 9, 2021 by Jean-Luc Aufranc (CNXSoft) - 8 Comments

Linux 5.15 LTS release – Main Changes, Arm, RISC-V and MIPS architectures

Linus Torvalds released Linux 5.15, an LTS version, this past Sunday: It’s been calm, and I have no excuse to add an extra rc, so here we are, with v5.15 pushed out, and the merge window starting tomorrow. Which is going to be a bit inconvenient for me, since I also have some conference travel coming up. But it’s only a couple of days and I’ll have my laptop with me. Sometimes the release timing works out, and sometimes it doesn’t.. Anyway, the last week of 5.15 was mainly networking and gpu fixes, with some random sprinkling of other things (a few btrfs reverts, some kvm updates, minor other fixes here and there – a few architecture fixes, couple of tracing, small driver fixes etc). Full shortlog appended. This release may have started out with some -Werror pain, but it calmed down fairly quickly and on the whole 5.15 was […]