risc-v News - Page 4 of 45 - CNX Software

January 10, 2024January 10, 2024 by Tomisin Olujinmi - 9 Comments

Espressif announces the ESP32-C61 WiFi 6 SoC with improved affordability and wireless connectivity

Espressif has announced the ESP32-C61 SoC, a new ESP32-Cx chip with improved wireless connectivity, and expanded memory options. The ESP32-C61 builds upon the foundation laid by previous ESP32-Cx chips, such as the ESP32-C2 and ESP-C3, and its specifications appear to be quite similar to the ESP32-C6 launched in early 2023, but this SoC also adds support for the BLE Mesh 1.1 protocol and Quad SPI PSRAM at a frequency of up to 120MHz. It supports WiFi 6 on two modes (802.11ax and 802.11b/g/n) and includes a Bluetooth 5 (LE) radio with support for long-range operation through advertisement extension and coded PHY. The TWT (Target Wake Time) feature is supported in 802.11ax mode to save power, as well as OFDMA (Uplink/Downlink) and MU-MIMO (Downlink) for a high-quality, low-latency connection between devices. ESP32-C61 specifications: CPU – Single-core, 32-bit RISC-V microcontroller that can be clocked up to 160MHz Memory: 320KB on-chip SRAM 256KB […]

January 8, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linux 6.7 release – Main changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds has just announced the release of Linux 6.7, following Linux 6.6 LTS a little over two months ago: So we had a little bit more going on last week compared to the holiday week before that, but certainly not enough to make me think we’d want to delay this any further. End result: 6.7 is (in number of commits: over 17k non-merge commits, with 1k+ merges) one of the largest kernel releases we’ve ever had, but the extra rc8 week was purely due to timing with the holidays, not about any difficulties with the larger release. The main changes this last week were a few DRM updates (mainly fixes for new hw enablement in this version – both amd and nouveau), some more bcachefs fixes (and bcachefs is obviously new to 6.7 and one of the reasons for the large number of commits), and then a few random […]

January 4, 2024January 3, 2024 by Jean-Luc Aufranc (CNXSoft) - 11 Comments

WCH RISC-V microcontrollers can now be programmed with the Arduino IDE

WCH has launched some interesting RISC-V microcontrollers in the last year or so, including the “10 cents” CH32V003 RISC-V microcontroller with 2KB SRAM and 16KB flash or the CH32V307with more resources (up to 64KB SRAM and 256KB flash) and additional peripherals. So far they were programmable in C language using MounRiver IDE or an open-source toolchain, but WCH has now announced Arduino support for many of those RISC-V microcontrollers which should enable more people to get involved. The core library for CH32duino works with OpenOCD through WCH-LINKE hardware to download the firmware and debug WCH chips and a riscv-none-embed-gcc toolchain that supports custom RISC-V instructions (half-word and byte compression instruction extensions and hardware stack push/pop functions) found in WCH RISC-V microcontroller. The following evaluation kits are currently supported with ADC, DAC, USART, GPIO, EXTI, SysTick, I2C, and SPI peripherals: CH32V003F4P EVT board CH32V203G8U EVT board CH32X035G8U EVT board CH32V103R8T6_BLACK EVT […]

January 2, 2024January 2, 2024 by Tomisin Olujinmi - 2 Comments

Tillitis Tkey is an open-source RISC-V security key in a USB-C case

Tillitis’ TKey is a small, simple security key in a USB-C form factor, and described as a “new type of flexible USB security token” that is inspired by DICE (Device Identifier Composition Engine) and measured boot powered by a simple 32-bit RISC-V core, the PicoRV32, in a Lattice iCE40 UP5K FPGA. While we have covered hardware security modules in the past, this is the first security key we have seen that is based on an FPGA running a RISC-V core. The security token lacks persistent, onboard storage, unlike alternatives such as Yubikey Neo. Apps need to be loaded onto the key every time it is connected to a host device. It uses measured boot to generate a unique identifier for each application and is more secure than the alternatives since private keys are not stored on the device. Also, the hardware and software for the TKey are completely open-source for […]

December 31, 2023December 31, 2023 by Jean-Luc Aufranc (CNXSoft) - 18 Comments

2023 Year in review – Top 10 posts, statistics, and what to expect in 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 […]

December 22, 2023December 22, 2023 by Jean-Luc Aufranc (CNXSoft) - 2 Comments

SONOFF iPlug S60 – A $10.9 compact WiFi smart socket with built-in energy monitoring function

SONOFF iPlug S60 is a compact ESP32-C3-based WiFi smart socket with built-in energy monitoring support and available with either Type E/F or Type G prongs for respectively European and British markets, as well as other countries using those types of sockets. ITEAD has manufactured home automation devices that measure power consumption for years, such as the SONOFF POW switch directly connected to the mains or the SONOFF S31 smart socket, but those are/were much larger devices, and the new SONOFF iPlus S60 is fairly small and barely larger than some other smart sockets that lack an energy monitoring function, whiling handling up to 16A or 4,000W at 220-250V. SONOFF iPlug specifications: Wireless MCU – ESP32-C3 RISC-V microcontroller with 2.4GHz WiFi 4 802.11b/g/n S60TPG Plug type – Type G (UK) Input – 250V, 50/60Hz, 13A max Max load – 3,250 Watts Dimensions – 58 x 58 x 42 mm Weight – […]

December 14, 2023December 14, 2023 by Jean-Luc Aufranc (CNXSoft) - 21 Comments

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

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 […]

December 7, 2023 by Debashis Das - 8 Comments

Renesas’ first 32-bit RISC-V CPU core delivers up to 3.27 CoreMark/MHz

Renesas has recently announced its first homegrown 32-bit RISC-V CPU core based on open-standard instruction set architecture (ISA).

Renesas has recently announced its first homegrown 32-bit RISC-V CPU core based on the open-standard instruction set architecture (ISA). This CPU core is compatible with Renesas’ e2 studio IDE and supports other third-party IDEs for RISC-V MCUs. According to Renesas, the CPU achieved a remarkable 3.27 CoreMark/MHz performance outperforming similar RISC-V architectures in this category. RISC-V, an open ISA, is rapidly gaining popularity in the semiconductor industry. Many MCU providers have formed joint investment alliances to expedite their RISC-V product development. Previously, Renesas released two CPUs developed by Andes Technology Corp: the R9A02G020, an ASSP EASY MCU for Motor Control, and the R9A06G150, an ASSP EASY MCU for Voice HMI, both based on RISC-V. Additionally, they have introduced the RZ/Five, a Linux-capable 64-bit RISC-V microprocessor family, and RH850/U2B, an automotive System on Chip (SoC). However, with the release of their new CPU, Renesas independently enters the RISC-V market, highlighting their […]