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October 20, 2026October 20, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linux 7.3 release – Main Changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds announced the release of Linux 7.3 on LKML last Sunday: It’s Sunday afternoon, and this week I somehow kept my wits together long enough to keep track of the day of the week, so the release isn’t randomly delayed. Will wonders never cease? Anyway, nothing very special seems to have happened this last week, so as expected the final 7.3 is out, and thus tomorrow the merge window for 7.4 opens. Except I’m on my annual family vacation, so instead of merging anything first thing in the morning, I’ll spend most of the day on a boat and under water. I’ll get back to merging in the afternoon, but I expect my schedule to be a bit unusual for a while. I hope I can still complete the merge window in the usual two weeks, but it may be that I’ll end up with an extra week of merging […]

September 24, 2026September 24, 2026 by Debashis Das - No Comments

Quectel SE200ZC-AP smart module supports up to five cameras with Rockchip RV1126B/BJ SoC

Quectel has launched the SE200ZC-AP, a compact (40 x 40 mm) smart module based on the Rockchip RV1126B/RV1126BJ quad-core Arm Cortex-A53 SoC with a 12MP ISP, an 8MP AI-ISP, and a 3 TOPS NPU. The module supports up to five 12MP cameras through two 4-lane MIPI CSI interfaces and one DVP interface. Other interfaces include Gigabit Ethernet, USB 3.0/2.0, two CAN FD, up to eight UART, six I2C, two SPI, two SDIO, three SAI, 22 ADC, 28 PWM, and up to 115 GPIOs. It ships with 1GB, 2GB, or 4GB LPDDR4x and 64GB eMMC flash, and is available in commercial and industrial grades, with operating temperatures of -25°C to +75°C and -35°C to +80°C, respectively. These features make it suitable for smart security, industrial automation, autonomous vehicles, robotic vision, and Smart Home applications. Quectel SE200ZC-AP specifications: SoC – Rockchip RV1126B or RV1126BJ (industrial-grade version) CPU – Quad-core Arm Cortex-A53 up […]

August 24, 2026August 24, 2026 by Debashis Das - No Comments

Rockchip RV1126B-based Forlinx FCU3101 fanless edge AI system targets IIoT and smart security applications

Forlinx FCU3101 RV1126B fanless edge AI system

Forlinx has just introduced the FCU3101, a fanless Edge AI system based on the Rockchip RV1126B/RV1126BJ SoC and designed for Industrial IoT (IIoT) and smart security applications, such as video surveillance, license plate recognition, intrusion detection, industrial inspection, and material counting. It ships with up to 4GB of DDR4, up to 64GB of eMMC storage, and includes dual Ethernet, Wi-Fi 4, Bluetooth 4.2, optional 4G LTE, RS485, RS232, digital I/O, relay outputs, HDMI, and USB ports. It supports up to 9–36V DC input and operates in the -40°C to +85°C temperature range in its industrial configuration. Forlinx FCU3101 specifications: SoC – Rockchip RV1126B or RV1126BJ (industrial-grade version) CPU – Quad-core Arm Cortex-A53 up to 1.6 GHz with 32KB L1 I-Cache and 32KB L1 D-Cache, unified 512KB L2 Cache GPU – 2D Graphics Engine VPU Video Decoder – H.265/H.264 up to 3840×2160 @ 30fps Video Encoder – H.265, H.264, JPEG up to […]

August 21, 2026August 22, 2026 by Jean-Luc Aufranc (CNXSoft) - 4 Comments

Linux 7.2 release – Main changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds released Linux 7.2 on LKML last Sunday: Well, this last week of the release was – once again – bigger than I would have wished for, but hey, with the whole “new normal” thing, if I delayed releases for that reason we’d probably never have a release at all. There are a number of fairly late reverts – the drm scheduling reverts stand out, but there’s a few other ones in here too. It may not be pretty, but it’s the correct way to deal with “oh, that code wasn’t ready and caused problems”. People will be trying that again later. But while the drm reverts stand out and are some of the bigger patches in here, there’s a lot of small fixes all over. Mostly in drivers, but networking remained fairly active this last week too. And then there are a few random patches to architecture files […]

July 15, 2026July 15, 2026 by Jean-Luc Aufranc (CNXSoft) - 7 Comments

Reverse-engineering brings RK3576 NPU support to open-source Rocket driver for mainline Linux

Back in 2024, we noted that the open-source driver for RK3588’s NPU by Tomeu Vizoso delivered decent performance for object detection. Since then, good progress has been made, and it’s now known as the Rocket driver in mainline Linux. However, the Rockchip RK3576 SoC is not supported by the Rocket driver in mainline yet, despite sharing a similar NPU. The good news is that Ga Hing Woo has been working on mainline Linux support for the Rockchip RK3576 NPU using the Rocket driver stack and has tested the updates on the Radxa ROCK 4D running Linux 7.1-rc5. This required some serious reverse-engineering work due to hidden registers not documented in the TRM. Ga Hing Woo (also written as Jiaxing Hu) sent us an email explaining some of the challenges: Single int8 convolution now comes out byte-exact against a CPU reference on the open stack. Getting there meant reverse-engineering the compute […]

June 18, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Rockchip RK3539 quad-core Cortex-A55 SoC shows up in low-cost Android 14 4K TV stick with AV1 codec support

Rockchip RK3539 TV Stick with Voice Remote Remote Control

HS89 T15 4K Android TV stick is powered by the new Rockchip RK3539 quad-core Cortex-A55 SoC with AV1 and H.265 video codecs and HDR10 support, and is equipped with up to 4GB of RAM and a 32GB eMMC flash. The device features a male HDMI 2.1 port, WiFi 6 and Bluetooth 5.4 connectivity, a USB Type-A host port, and a USB-C port for power only, either directly from the TV or through a 5V/2A power adapter. The device also ships with a Bluetooth voice remote control. Let’s have a look at both the streaming device and the RK3539 chip itself since the datasheet is available. HS89 T15 TV stick Let’s start with the HS89 T15 TV stick’s specifications: SoC – Rockchip RK3539 CPU – Quad-core Cortex-A55 @ 1920 MHz GPU – Mali-310 VPU – 4Kp60 AV1, H.265, H.264 video decoding System Memory/Storage options 2GB RAM, 16GB eMMC flash 4GB RAM, […]

June 15, 2026June 16, 2026 by Jean-Luc Aufranc (CNXSoft) - No Comments

Linux 7.1 Release – Main changes, Arm, RISC-V, and MIPS architectures

Linus Torvalds has just released Linux 7.1 on LKML: So it’s only Sunday morning back home, but it’s Sunday afternoon where I am right now, so I’m doing the 7.1 release at the regular time – just not in the regular timezone. This obviously means that the merge window opens tomorrow, but I’ll be in yet another timezone by then, so timing will all be a bit irregular. Normally I try to front-load the merge window and do as much as possible the first few days – this time I’m not sure that will work out with my laptop and a couple of long flights without internet, but I’ve made sure that I have fetched the early pull requests (thank you – you know who you are), so I will be able to do some of it off-line. Anyway, possible slight hiccups in the merge window aside, the news today […]

April 30, 2026April 30, 2026 by Jean-Luc Aufranc (CNXSoft) - 1 Comment

Forlinx UP4 – A 40×40 mm LCC + LGA system-on-module family with Rockchip, NXP, and Allwinner CPU options

Forlinx Embedded UP4 is a new family of pin-to-pin compatible system-on-modules currently offered with Rockchip RK3568J/RK3562J, NXP i.MX 9352, or Allwinner T527N/T536 processors. The UP4 modules measure just 40×40 mm and expose 487 pins through a hybrid LCC (Leadless Chip Carrier) and LGA (Land Grid Array) design with 1.0mm contact pitch and 1.27mm ball pitch, respectively. This should allow companies to design a single carrier board for multiple CPU variants. Forlinx UP4 specifications: SoC FET-MX9352-UP4 – NXP i.MX 9352 with 2x Arm Cortex-A55 cores @ up to 1.7 GHz, Cortex-M33 real-time core @ 250 MHz, 2D GPU only, 0.5 TOPS Arm Ethos U65 microNPU FET3568-UP4 – Rockchip RK3568B2/J with 4x Arm Cortex-A55 cores @ up to 2.0/1.8 GHz, Arm Mali-G52 MP2 3D GPU, 1 TOPS AI NPU FET3562J-UP4 – Rockchip RK3562J with 4x Arm Cortex-A53 cores @ 1.8 GHz, Arm Mali-G52-2EE 3D GPU, 1 TOPS NPU FET527N-UP4 – Allwinner T527N […]