Linux 4.17 Release – Main Changes, Arm & MIPS Architectures

Linus Torvalds released Linux 4.17 last Sunday: So this last week was pretty calm, even if the pattern of most of the stuff coming in on a Friday made it feel less so as the weekend approached. And while I would have liked even less changes, I really didn’t get the feeling that another week would help the release in any way, so here we are, with 4.17 released. No, I didn’t call it 5.0, even though all the git object count numerology was in place for that. It will happen in the not _too_distant future, and I’m told all the release scripts on kernel.org are ready for it, but I didn’t feel there was any real reason for it. I suspect that around 4.20 – which is I run out of fingers and toes to keep track of minor releases, and thus start getting mightily confused – I’ll switch over. That was what happened for 4.0, after all. As …

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RAK WisCam is a $20 Arduino Compatible WiFi Camera Linux Board Powered by Nuvoton N32905 ARM9 Processor

A couple of weeks ago I wrote about Rakwireless’ RAK CREATOR Pro development board based on Realtek Ameba RTL8711AM Wireless MCU, and part of their Wiskey family of development boards. Sub-family include WisNode for IoT boards, WisAP for OpenWrt boards, WisPLC for PLC hardware, and WisCam for WiFi video camera boards. The company has recently introduced Wiscam RAK5281 Arduino compatible Linux board powered by a Nuvoton ARM9 MCU, and supporting a camera module or an SD card + USB module. RAK WisCam specifications: SoC –  Nuvoton N32905R3DN ARM926EJ processor @ 200 MHz with 8KB internal SRAM, 16KB IBR internal booting ROM, 16Mbit  x16  DDR2 memory Storage – 128 MBit SPI flash, included sub-module adds micro SD card Connectivity – 802.11 b/g/n WiFi via Realtek RTL8189FTV module Camera via sub-module 648×488 pixel VGA CMOS Image Sensor (GC0308); 102° FOV Video –  QVGA (320×240) 30FPS, VGA(640×480) 30FPS, MJPEG encoding Photo – JPEG, 16 bits/pixel – RGB565, 32bits/pixel – ARGB8888 Audio – 16-bit …

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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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Nuvoton NUC970 ARM9 Microprocessor Gets Mainline Linux Support

As I checked out the latest email on the ARM Linux kernel mailing list, one thread somehow caught my attention: “[PATCH v2 00/10] ARM: NUC900: Add NUC970 SoC support” with the following introduction: This patch series added Nuvoton new SoC NUC970 development board support, this nuc970 belongs to nuc900 series, but many features are not compatible with old nuc900 SoCs like nuc910, nuc920. I could not quite remember ever having heard about Nuvoton, and it turns out it’s a fairly recent Taiwan company, founded in 2008 as a spinoff and fully own subsidiary of the better known Winbond Electronics. Their website shows ARM Cortex M0/M4 & 8051 micro-controllers, as well as ARM7 and ARM9 micro-processors, and some other application specific audio and video SoCs. But when I checked for MUC970 I could not find anything on their website, even in NUC900 series page. But Google came to the rescue and I found NUC970 datasheet and hardware development guide providing more …

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