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August 15, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

Embedded Linux Conference (ELC) Europe 2019 Schedule – October 28-30

Embedded Linux Conference Europe 2019 Schedule

I may have just written about Linaro Connect San Diego 2019 schedule, but there’s another interesting event that will also take place this fall: the Embedded Linux Conference Europe on October 28 -30, 2019 in Lyon, France. The full schedule was also published by the Linux Foundation a few days ago, so I’ll create a virtual schedule to see what interesting topics will be addressed during the 3-day event. Monday, October 28 11:30 – 12:05 – Debian and Yocto Project-Based Long-Term Maintenance Approaches for Embedded Products by Kazuhiro Hayashi, Toshiba & Jan Kiszka, Siemens AG In industrial products, 10+ years maintenance is required, including security fixes, reproducible builds, and continuous system updates. Selecting appropriate base systems and tools is necessary for efficient product development. Debian has been applied to industrial products because of its stability, long-term supports, and powerful tools for packages development. The CIP Project, which provides scalable and […]

August 13, 2019 by Jean-Luc Aufranc (CNXSoft) - No Comments

PhyWhisperer-USB Python Controlled USB 2.0 Sniffer Enables USB Security Testing (Crowdfunding)

PhyWhisperer-USB is a hardware USB sniffer & triggering platform that allows users to test the security of USB devices using side-channel power analysis and fault injection using a Python 3 interface, beside simply capturing packets. This has become especially important now as some USB devices include Bitcoin Wallets, FIDO2 keys, and encrypted drives with valuable data. PhyWhisperer-USB hardware specifications: FPGA – Xilinx Spartan 7S15 with 12,800 logic cells USB USB 2.0 Low/Full/High Speed mode PC connection – Micro-USB 2.0 HS port Host connection – Micro-USB port Target connection – USB-A female connector Trigger pattern – 1 – 64 bytes with mask Trigger delay – 0 – 1048576‬ cycles of 240 MHz internal clock derived from USB clock USB sniffer FIFO – 8192 bytes (FPGA block RAM, adjustable depending on FPGA utilization) Expansion – Spare digital I/O: 8 data pins, 1 clock pin routed to FPGA (on front panel) Clock output […]

August 12, 2019August 12, 2019 by Jean-Luc Aufranc (CNXSoft) - 5 Comments

Linaro Connect San Diego 2019 Schedule – IoT, AI, Optimizations, Compilers and More

Linaro has recently released the full schedule of Linaro Connect San Diego 2019 that will take place on September 23-27. Even if you can’t attend, it’s always interested to check out the schedule to find out what interesting work is done on Arm Linux, Zephyr OS, and so on. So I’ve created my own virtual schedule with some of the most relevant and interesting sessions of the five-day event. Monday, September 23 14:00 – 14:25 – SAN19-101 Thermal Governors: How to pick the right one by Keerthy Jagadeesh, Software Engineer, Texas Instruments With higher Gigahertz and multiple cores packed in a SoC the need for thermal management for Arm based SoCs gets more and more critical. Thermal governors that define the policy for thermal management play a pivotal role in ensuring thermal safety of the device. Choosing the right one ensures the device performs optimally with in the thermal budget. […]

August 7, 2019 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

STMicro Launches $10 STLINK-V3mini Mini Probe for STM32 MCUs

Last year, we reported STMicroelectronics launched STLink-V3 debugger & programmer for STM8 & STM32 microcontrollers that added I2C, SPI, and CAN interfaces compared the previous STLink-V2 model. It’s not particularly expensive either at $35, but if you ever wanted something more compact and cheaper, the company has now introduced STLink-V3mini debugger going for under $10. STLINK-V3Mini key features and specifications: JTAG / serial wire debugging (SWD) specific features: 3 V to 3.6 V application voltage support and 5 V tolerant inputs JTAG communication support SWD and serial wire viewer (SWV) communication support Virtual COM port (VCP) specific features: 3 V to 3.6 V application voltage support on the UART interface and 5 V tolerant inputs VCP frequency up to 15 MHz USB – Micro USB 2.0 connector for power and connection to host computer Misc – 2x color LEDs: communication, power; STDC14 signals protection Dimensions – 30 x 15 mm […]

May 16, 2019May 16, 2019 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Fusion for TIVA v8 Development Board Enables Debugging & Programming over WiFi

Texas Instruments TIVA Arm Cortex-M4 MCU family was first introduced in 2013, I tested a TIVA Launchpad the following years, and since microcontrollers have usually a long life span they are still in use today, and should still be available for many years. I’m writing about this TI MCU family today because MikroElektronika has just announced Fusion for TIVA V8 development board for TI TIVA, Stellaris and MSP432 microcontrollers with plenty of I/Os including some MikroBus expansion slots, as well as support for debugging and programming over WiFi in addition to the usual USB-UART interface. Fusion for TIVA v8 board specifications: MCU – Socket for MikroElektronika MCU CARD Display Interfaces 2x 20-pin TFT display connector 1x 16-pin LCD connector for 2×16 characters LCD displays in 4-bit mode, optional PWM backlight driving feature Programming – On-board CODEGRIP programmer/debugger, JTAG connector for connecting an external programmer/debugger Connectivity – Ethernet port, WiFI in […]

November 13, 2018November 17, 2018 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

A Tale of Many Divisions – Naive Prime Factorization Across a Handful of Architectures

CNXSoft: Another guest post by blu where he looks at how a small piece of code involving divisions behaves on different architectures. Once upon a time (i.e. the other week) I was giving tips to my 5th-grader how to efficiently compute least common multiples, when it struck me I could do better ‒ I could write a prime factorizer that could be useful to the elementary-school-goers in this house, as well as to the people checking the formers’ homeworks. Moreover, a naive prime factorizer could show kids how computers would carry out algorithms taught in class. There was also a bit of curiosity involved ‒ last time I wrote a prime factorizer I was in high school, and the language was Applesoft BASIC, so 30 years later, armed with a modern C++ arsenal and a supercomputer (by late ‘80s standards), I wondered what one might come up with today, approaching […]

October 13, 2018 by Jean-Luc Aufranc (CNXSoft) - 15 Comments

CH330N is a New USB to Serial Chip in an SOP8 Package

Earlier this month we covered Air602 low cost Arm WiFi module, and while it’s not clear whether it will ever compete with ESP8266 due to software support, some readers noticed an interesting new chip on the corresponding development board: WCH CH330N USB to serial chip with features similar to CH340, but less pins (e.g. DTS, and CTS are missing), and available in a tiny SOP8 package. CH330N comes with built-in crystal oscillator, and supports baud rate from 50 bps to 2 Mbps. You’ll find more hardware technical details in the datasheet in Chinese. CH330(N) works with CH340/CH341 driver as pointed out by Icenowy Zheng who made a small USB to TTL debug board based on the chip to practice PCB drawing with KiCAD. She also mentioned the USB ID and behavior of CH330 is the same with CH340. CH330 / CH330N chip is still nowhere to be found on Aliexpress, […]

August 23, 2018August 23, 2018 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

MuxPi Board Relies on NanoPi NEO to Enable Remote Testing of Development Boards

Product development often occurs in different location over the world, there may be one team in Asia, and another in Europe and the US. At the beginning, the number of working samples for a board may be limited, so the project manager may have to decide who gets the boards since those may not be available to all teams. So it would be great if somehow there was a way to do remote testing of boards, so maybe the team in Asia could setup the testbed, used it during there time, and once they are back home, the US team can take over remotely to carry on their own development work on the hardware. That’s exactly what MuxPi board is all about. The solution provide remote access via the Ethernet port of a NanoPi NEO board, and connects to the DUT (Device under Test) via HDMI, Ethernet, USB and other […]