Software management Category - Page 10 of 44 - CNX Software

March 31, 2023 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

STMicro STLINK-V3PWR debugging & programming probe supports power measurement

STMicro STLINK-V3PWR is a new in-circuit debugging and programming probe made for STM32 microcontrollers and that is said to provide accurate power measurement. The probe is especially useful for battery power IoT and wireless applications and is able to measure current values from nanoamps up to ~500mA with up to ±0.5% accuracy. The STLINK-V3PWR can also power the target over a single USB cable up to 2A. STMicro STLINK-V3PWR key features and specifications: 1‑Quadrant source measurement unit: Programmable voltage source from 1.6 to 3.6 V Output current rating 500 mA with over-current protection (OCP) at 550 mA Programmable sampling rate from 1 SPS to 100 kSPS Dynamic measurement 100 nA to 550 mA current 160 nW to 1.65 W power measurements 50 kHz bandwidth 1.6 MHz acquisition / 2% accuracy Compatible with EEMBC ULPMark tests Auxiliary output voltage source from 1.6 to 3.6 V under up to 2 A (no current measurement, OCP at 2.5 A) Debugging of […]

January 25, 2023January 25, 2023 by Jean-Luc Aufranc (CNXSoft) - 14 Comments

U-boot now supports booting Linux from an HTTP server

Up until now, U-boot would only support the User datagram protocol (UDP) allowing for TFTP and NFS boot, but Linaro has now added support for TCP and HTTP in U-boot in order to boot Linux from common web servers. TFTP boot from U-boot has been supported for years, as around the year 2006 I remember implementing TFTP Linux boot for a Karaoke system in order to lower the BoM cost by selecting a smaller flash device, and I also explained how to boot Linux on a TV box with TFTP back in 2014. This requires installing a TFTP server on your server, which is quite a trivial task, but HTTP servers are omnipresent, so it’s a welcome addition to U-boot. If you want to use HTTP to boot Linux, it needs to be enabled in the U-boot config:

CONFIG_PROT_TCP=y
CONFIG_PROT_TCP_SACK=y
CONFIG_CMD_WGET=y

CONFIG_PROT_TCP=y

CONFIG_PROT_TCP_SACK=y

CONFIG_CMD_WGET=y

The top and bottom options are pretty obvious, and the second […]

November 24, 2022November 24, 2022 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Optimize your thermal design with code_saturne open-source CFD software

code_saturn open source CFD software heatsink

code_saturne is a free, open-source computational fluid dynamics (CFD) software developed primarily by EDF that can be useful to check and optimize the thermal design of your projects. From time to time, we come across hardware platforms that do not perform to their best due to overheating leading to CPU throttling, and over time it may also impact the lifetime of the device. I’ve heard about computational fluid dynamics (CFD) before, but I always assumed the software was prohibitively expensive and Formula 1 even has a cost cap for CFD testing. But it turns out there’s an open-source program to do just that: code_saturne. As a utility company, EDF designed the software to simulate the flows around and inside the buildings, pipes, and pumps used in power plants, but Lukas Henkel found out he could also use the free and open-source code_saturne program for analyzing the air currents caused by […]

October 31, 2022 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

TinyML-CAM pipeline enables 80 FPS image recognition on ESP32 using just 1 KB RAM

TinyML-CAM image recognition microcontroller boards

The challenge with TinyML is to extract the maximum performance/efficiency at the lowest footprint for AI workloads on microcontroller-class hardware. The TinyML-CAM pipeline, developed by a team of machine learning researchers in Europe, demonstrates what’s possible to achieve on relatively low-end hardware with a camera. Most specifically, they managed to reach over 80 FPS image recognition on the sub-$10 ESP32-CAM board with the open-source TinyML-CAM pipeline taking just about 1KB of RAM. It should work on other MCU boards with a camera, and training does not seem complex since we are told it takes around 30 minutes to implement a customized task. The researchers note that solutions like TensorFlow Lite for Microcontrollers and Edge Impulse already enable the execution of ML workloads, onMCU boards, using Neural Networks (NNs). However, those usually take quite a lot of memory, between 50 and 500 kB of RAM, and take 100 to 600 ms […]

October 21, 2022October 24, 2022 by Sponsored Post - Comments Off

MobileTrans – A secure phone-to-phone transfer solution (Sponsored)

If you have just purchased a new phone and feel daunted by the task of transferring data from your old phone, Wondershare MobileTrans secure phone-to-phone transfer solution could be a lifesaver. Trusted by more than 500,000 users worldwide, the MobileTrans program can help you transfer WhatsApp data, photos, apps, messages, videos, and more between your new and old phone, no matter if you’ve switched from Android to iPhone or vice versa, or kept faithful to the same operating system. WhatsApp Data Transfer The software allows users to migrate WhatsApp data easily from iPhone to Android and vice versa including messages, stickers, media such as photos, videos, and audio messages, as well as documentation, locations, emojis, and contacts. It’s also possible to restore WhatsApp backups from Google Drive to an iPhone. MobileTrans also works with Whatsapp Business Transfer and GBWhatsApp, as well as other messaging apps such as LINE. Kik and […]

October 19, 2022October 19, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Google KataOS – A secure OS for embedded systems written in Rust (mostly)

Google Research has been working on its own Rust-based operating system called KataOS and designed to secure embedded systems that run Machine Learning (ML) applications. There has been a lot of talk about the Rust programming language in recent times, since it offers about the same level of performance as C programming but helps programmers write more secure code with built-in prevention against buffer overflows for instance. It has gained a lot of traction over the years, and Linux 6.1 will be the first kernel release to include Rust code. Google Research noticed that system security is often treated as a feature that can be added to existing systems either by software or an extra security chip. But in a world, where more and more of our private data is exposed to the world through the Internet, it is not good enough, so the company developed KataOS open-source, secure operating […]

September 13, 2022September 13, 2022 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

ESP-Hosted simplifies adding WiFi connectivity to legacy Linux or MCU-based products

Most of the ESP8266 and ESP32 projects and products we cover here use the Espressif microcontroller as the main chip, but ESP8266 started as a WiFi module meant to be controlled with AT commands from a host device. But there are still “legacy” products that may benefit from connecting to the cloud, and Espressif introduced the ESP-Hosted for that purpose in 2020, and recently released a next-generation ESP-Hosted solution (ESP-Hosted-NG) specifically for Linux hosts. The solution is available in two variants: ESP-Hosted-FG (First generation) exposing an Ethernet interface to the host and suitable for microcontrollers and Linux hosts, and the ESP-Hosted-NG presenting an 802.11 network interface and designed for Linux hosts only. Both solutions include ESP32 firmware and a host driver running on the legacy system. Espressif Systems recommends using ESP-Hosted-FG on an MCU host, and ESP-Hosted-NG on a Linux host in order to benefit from Linux user space applications/services […]

June 9, 2022June 9, 2022 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Kodi 20 “Nexus” Alpha 1 gets AV1 hardware decoding, DietPi 8.5 released

I’ll combine two unrelated short news about software releases for TV boxes, Raspberry Pi, and other SBCs: Kodi 20 “Nexus” Alpha 1 media center, and DietPi 8.5 lightweight Debian-based image for SBC’s. Kodi 20 “Nexus” Alpha 1 The first alpha release of Kodi 20 “Nexus” is out with one highlight being support for AV1 hardware video decoding in Android and x86 (VAAPI) platforms with AV1-capable GPU or VPU. Other notable changes include: FFMPEG upgraded to version 4.4 Plenty of subtitle related changes: Added Steam Deck built-in controller support Initial support for M1 native including native windowing/input handling Pipewire support in Linux Various PVR improvements including in terms of performance when a large number of channels is displayed You’ll find more details in the announcement. The RetroPlayer project based on Kodi, but adding some game-related features, has also released some test images based on Kodi 20. Note that since it’s an […]