Ameba Z2 IoT Board Features Realtek RTL8720CM Armv8-M KM4 Secure Wireless MCU

Ameba Z2 IoT Development Board

In 2016 we discovered Realtek Ameba wireless microcontrollers combining an Arm Cortex-M3 core with WiFi connectivity, and that could potentially become an ESP8266 competitor with modules selling for as low as $2. But the solution never really took off, because it was about the same price as ESP8266, and the latter already had a solid software ecosystem and community. But RealTek has now introduced a new Ameba Z2 IoT development board powered by RTL8720CM microcontroller featuring an Armv8-M KM4 core clocked at 100 MHz. What’s an Arm KM4 core you may ask? Seeed Studio informed me Arm and RealTek worked together on the KM4 core, so it looks like a custom Armv8-M microcontroller. Ameba Z2 IoT Development Board Ameba Z2 (ZII) specifications: Wireless MCU – Realtek RTL8720CM single core Armv8-M KM4 core @ 100MHz with 4.2MB internal RAM, WiFi and Bluetooth radios Storage – 2MB external flash on module Connectivity Wi-Fi – 802.11 b/g/n 1×1 Wi-Fi 4 (20/40MHz) with PCB …

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Arm Techcon 2019 Schedule – Machine Learning, Security, Containers, and More

Arm Techcon 2019

Arm TechCon will take place on October 8-10, 2019 at San Jose Convention Center to showcase new solutions from Arm and third-parties, and the company has now published the agenda/schedule for the event. There are many sessions and even if you’re not going to happen it’s always useful to checkout what will be discussed to learn more about what’s going on currently and what will be the focus in the near future for Arm development. Several sessions normally occur at the same time, so as usual I’ll make my own virtual schedule with the ones I find most relevant. Tuesday, October 8  09:00 – 09:50 – Open Source ML is rapidly advancing. How can you benefit? by Markus Levy, Director of AI and Machine Learning Technologies, NXP Over the last two years and still continuing, machine learning applications have benefited tremendously from the growing number of open source frameworks, tools, and libraries to support edge inferencing. These include CMSIS-NN, ARM …

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Microchip Unveils SAM L10 & SAM L11 Arm Cortex-M23 MCU Families with Arm TrustZone for Armv8-M

SAM L10 Xplained Pro

Microchip has recently announced new SAM L10 and SAM L11 Arm Cortex-M23 MCU families, with the SAM L11 family featuring Arm TrustZone for Armv8-M that provides hardware isolation between certified libraries, IP and application code. SAM L10 & SAM L11 MCU Families Key features: Arm Cortex M23 Core @ 32 MHz Up to 64 KB Flash and 16 KB SRAM picoPower Technology less than 25 μA/MHz in active mode less than 100 nA in sleep mode Fast wakeup time: 1.5 μS Flexible power saving features Enhanced Peripheral Touch Controller (PTC) with improved water tolerance, noise immunity and responsiveness Security (for SAM L11 only) Chip-level tamper resistance Arm TrustZone technology Secure boot Secure bootloader Crypto accelerators Secure key storage Op amp ADC and DAC Package – VQFN32, TQFP32, WLCSP32, VQFN24, SSOP24 Microchip SAM L10 MCU achieved a ULPMark score of 405, or over 200 percent better performance compared to the nearest competitor certified by EEMBC (Embedded Microprocessor Benchmark Consortium). The SAM …

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NuMicro M2351 TrustZone Enabled ARM Cortex M23 MCU is Designed for Fingerprint Applications

ARM Cortex-M23 & M33 ARMv8-M cores were unveiled at ARM Techcon 2016 last October. They are the first MCU class cores to support TrustZone technology for better security, and one of the first micro-controllers to feature the technology is Nuvoton’s NuMicro M2351 Cortex M23 MCU designed for fingerprint applications. NuMicro M2351 MCU specifications Processor Core – ARM Cortex-M23 ARMv8-M core @ up to 48 MHz Memory – 96 KB embedded SRAM Storage – Up to 512 KB embedded flash with dual bank mode supporting OTA firmware update, 32 KB Secure Boot ROM Display IF – 8 COM x 40 SEG controller with internal charge pump for segment LCD panel Peripherals – UART, SPI, I²C, GPIOs, USB and ISO 7816-3 for smart card reader. Security features TrustZone Technology 8 Memory Protection Units (MPU) 8 Security Attribution Units (SAU) Implementation Defined Attribution Unit (IDAU) 2 KB OTP ROM with additional 1KB lock bits Hardware Crypto Accelerators CRC calculation unit Up to 6 …

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ARM Introduces Secure Cortex-M23 and Cortex-M33 ARMv8-M MCU Cores, and Bluetooth 5 Cordio Radio IP for IoT Applications

ARM TechCon 2016 is now taking place in Santa Clara, California, USA, as ARM has made three announcements for the Internet of Things, the focus of SoftBank going forward, with two ARM Cortex-M ARMv8-M cores integrating ARM TrustZone technology, namely Cortex-M23 low power small footprint core, and Cortex-M33 core with processing power similar to Cortex-M3/M4 cores, as well as Cordio Radio IP for Bluetooth 5 and 802.15.4 connectivity. ARM Cortex-M23 ARM Cortex-M23, based on the ARMv8-M baseline architecture, is the smallest and most energy efficient ARM processor with TrustZone security technology,and targets embedded applications requiring both a small footprint, low power, and security. Its power consumption is low enough to be used in batteryless, energy harvesting IoT nodes, and is roughly a third of Cortex-M33 processor size, and offers more than twice its energy efficiency. Cortex-M23 is a two-stage pipelined processor, software compatible with other processors in the Cortex-M family. You’ll find more information on ARM Cortex-M23 product page, and …

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Hacking ARM TrustZone / Secure Boot on Amlogic S905 SoC

Amlogic S905 processor used in many Android TV boxes and ODROID-C2 development board implements ARM TrustZone security extensions to run a Trusted Execution Environment (TEE) used for DRM & other security features. However, Frédéric Basse, a security engineer, worked with others and managed to bypass secure boot in one Amlogic S905 powered Android TV box, namely Inphic i7, but any other device based on the processor would have made the same thing possible. He explains the steps they went through and how they managed to exploit vulnerability to bypass secure boot in a detailed technical blog post. They first started by looking for info in Amlogic S905 datasheet, but most info about TrustZone had been removed from the public version. So not that much help here except a potential address for BOM Root (ROMBOOT_START   0xD9040000). The next step was to connect the UART pins in order to access the serial console, but he could not read the BootROM from …

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Upcoming ARM TrustZone Webinars Explaining Embedded Systems / IoT Security to Non-security Experts

Most people understand that securing the IoT is important, but security is a highly a complex subject, and as seen with the many security breaches, even specialists – who in theory should now better – get their devices or online accounts hacked. So even if you are not a security expert, but are involved in the development of embedded systems, it’s important to get acquainted with online and offline security and understand how all this all work, at least from a high level perspective, without necessarily having to dig into the technical details. ARM is organizing two webinars catering to people who are not security experts, and explaining how they can secure embedded systems using the company’s TrustZone technology. The first webinar entitled “How to build trust and security into your embedded device” will allow participant to gain an understanding of the security that will need to be applied in their next embedded devices, the technology available, the underlying security …

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Raspberry Pi 3 To Get ARM TrustZone Support with Linaro OP-TEE Port

If you ever wanted to experiment with ARM Trustzone, and IoT security, you’ll soon be able to do so with the Raspberry Pi 3 board thanks to a port of Linaro OP-TEE (Open Portable Trusted Environment Execution) by Sequitur Labs. Broadcom BCM2737 SoC found in Raspberry Pi 3 board already had TrustZone hardware for isolation and protection for sensitive material such as cryptographic keys, algorithms and data, but the upcoming software release will mean the feature can now be used, and it’s free for trial/evaluation, and  education. Trustzone is also used for DRM (digital rights management), but in the case of Raspberry Pi 3 it will most likely used to teach how to secure the Internet of Things (IoT). The release is scheduled for July 11, with source code and documentation to be available in OP-TEE github account. All you’ll need to get started is a Raspberry Pi 3 board, a micro SD  card to load, a Bus blaster, a …

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