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April 7, 2025 by Jean-Luc Aufranc (CNXSoft) - 17 Comments

GPMI is a Chinese alternative to HDMI and DisplayPort with up to 192 Gbps bandwidth, 480W Power Delivery

Defined by the Shenzhen 8K UHD Video Industry Cooperation Alliance (SUCA), GPMI (General Purpose Media Interface) is an alternative to HDMI and DisplayPort supporting up to 192 Gbps bandwidth and 480W power delivery (PD). As far as I know, the specifications have not been made public just yet, but ITHome.com shared some photos and details. The GPMI standard defines two types of connectors: Type-B and Type-C (USB-C) with support for 192 Gbps/480W PD and 96 Gbps/240W PD, respectively. Here’s how GPMI compares to the latest HDMI and DP versions. The best resource I’ve found about the GPMI standard is a white paper shared by Hisilicon. It requires email registration, and it’s only in Chinese, but I’ve translated some of the slides for reference. The Type-B port looks like a compressed HDMI port, which might be great for laptops and tablets, while the Type-C port appears to be identical to a […]

September 4, 2024 by Jean-Luc Aufranc (CNXSoft) - 13 Comments

Bluetooth 6.0 features accurate two-way ranging using Channel Sounding, latency reduction, improved scanning efficiency, and more

The Bluetooth Special Interest Group (SIG) has just announced the release of the Bluetooth 6.0 Core Specification with features and feature enhancements that include Bluetooth Channel Sounding for two-way ranging between BLE devices, decision-based advertising filtering and monitoring advertisers to improve device scanning efficiency, an enhancement to the Isochronous Adaptation Layer (ISOAL) for lower latency and higher reliability, the LL extended feature set, and a frame space update for throughput optimization. Bluetooth 5.4 was released as a minor update mostly adding electronic shelf label (ESL) support in February 2023, or about 18 months ago, but Bluetooth 6.0 is a major update with the most notable feature being Bluetooth Channel Sounding to enable two-way ranging between two Bluetooth LE devices. It’s not the first time we’ve heard about “Bluetooth Channel Sounding” for distance measurements as it was implemented in WiFi 7/6 and Bluetooth 5.4 chipsets such as Synaptics SYN4382 and Broadcom […]

August 6, 2024 by Jean-Luc Aufranc (CNXSoft) - No Comments

SMARC 2.2 specification adds support for Soundwire, PCIe Gen4, and more

SGET (Standardization Groups for Embedded Technologies) has announced the release of the SMARC 2.2 specification with various improvements including support for Soundwire, PCIe Gen4, and severa; other changes related to pinout definitions and signal descriptions, as well as various bug fixes and corrections. SMARC (“Smart Mobility ARChitecture”) is one of the many standards for systems-on-module designed to enable interoperability between vendors that offer modules compliant with the standard. SMARC features a 314-pin MXM 3.0 connector and is available in two form factors, either 82×50 mm or 82×80 mm, with the former being more common. SMARC 2.2 changes since SMARC 2.1 (April 2020): Removed wrong AC coupling comment in section 3.5.1 HDMI (SMARC 2.1.1 update) Added Soundwire as an alternative function for I2S2 Added SERDES reset signal as an alternative function of PCIe reset signal Added SERDES interrupt signals as dual-function on GPIO[7:8] Updated supported Ethernet speed and renamed the LINK […]

May 20, 2024 by Jean-Luc Aufranc (CNXSoft) - 10 Comments

Matter 1.3 specification adds support for water and energy management, electric vehicle chargers, and various household appliances

The Connectivity Standard Alliance (CSA) has just announced the release of the Matter 1.3 specification and SDK with energy reporting, support for water and energy management devices, electric vehicle chargers, several new “major appliances”, namely various kitchen appliances and laundry dryers, and various other features. As a reminder the Matter protocol was initially introduced several years ago under the name Project CHIP to improve the interoperability of Smart Home devices from various vendors, so for example, users could connect a Matter-compatible Philips Hue light bulb to a Samsung gateway, or a white-brand Matter sensor with Google Home, etc… Matter started to pick last year with several products launched, and Paisit notably reviewed the MINI Extreme Wi-Fi Smart Switch (MINIR4M), the first Matter device from SONOFF, last October. Matter 1.3 adds various new capabilities and devices. Matter 1.3 highlights: Support for Water and Energy Management Devices Energy Management – Matter 1.3 […]

April 10, 2024April 10, 2024 by Debashis Das - 3 Comments

The New IoT Device Security Specification 1.0 unifies various standards into one

Connectivity Standards Alliance Launches the IoT Device Security Specification 1.0

The Connectivity Standards Alliance has recently introduced its IoT Device Security Specification 1.0, a way to defragment many security standards into one. This common scheme and certification standard will ensure that devices meet local requirements in each country. With this approach, a single test from the alliance ensures that the product can be sold globally without any compliance issues. IoT Device Security Specification 1.0 at a glance: Unified Security Standard – Integrates the major cybersecurity baselines from the United States, Singapore, and Europe into one comprehensive framework. Product Security Verified Mark – A new certification mark that indicates compliance with the IoT Device Security Specification, designed to enhance consumer trust and product marketability. No Hardcoded Default Passwords – Ensures all IoT devices utilize unique authentication credentials out of the box, improving initial security. Unique Identity for Each Device – Assigns a distinct identity to every device, crucial for traceability and secure […]

April 5, 2024 by Jean-Luc Aufranc (CNXSoft) - 3 Comments

PCIe 7.0 to support up to 512GB/s bidirectional transfer rates

The PCI-SIG first unveiled the PCIe Express (PCIe) 7.0 specification at US DevCon in June 2022 with claims of bidirectional data rates of up to 512GB/s in x16 configuration, and the standard is now getting closer to the full release in 2025 with the release of the specification version 0.5. PCIe 7.0 increases data transfer speeds to 128 GT/s per pin doubling the 64 GT/s of PCIe 6.0 and quadrupling the 32 GT/s of PCIe 5.0, delivering up to 256 GB/s in each direction in x16 configuration, excluding encoding overhead. In other words, the total maximum bandwidth of a PCIe 7.0 x1 interface (32GB/s) would be equivalent to PCIe Gen3 x16 or PCIe Gen4 x8 as shown in the table below. PCIe 7.0 highlights: 128 GT/s raw bit rate and up to 512 GB/s bidirectionally via x16 configuration PAM4 (Pulse Amplitude Modulation with 4 levels) signaling Doubles the bus frequency […]

December 11, 2023December 10, 2023 by Jean-Luc Aufranc (CNXSoft) - 6 Comments

Raspberry Pi releases PCIe FFC connector specifications, new HAT+ standard

Raspberry Pi 5 PCIe pinout and FFC cable

Raspberry Pi has released two new specifications one for the PCIe FFC connector and related cable and the other for the new Raspberry Pi HAT+ (HAT Plus) standard that’s simpler, takes into account new features in Raspberry Pi 4/5, and has fewer rules around mechanical dimensions. PCIe FFC connector specifications The Raspberry Pi 5 was announced over 2 months ago with a new PCIe FFC connector, and people may been playing around with it and even launching products such as an M.2 HAT for the Raspberry Pi 5 since then even though the pinout and specifications were not available. But Raspberry Pi has now released the specifications (PDF) for the PCIe FFC found in the Raspberry Pi 5 and likely future models as well. The 16-pin 0.5mm pitch FFC connector features a single lane PCIe interface, something we knew already, but the pinout diagram and recommendations for the FFC cable […]

July 19, 2023July 20, 2023 by Jean-Luc Aufranc (CNXSoft) - No Comments

FCC and NIST unveils the Cyber Trust Mark, a voluntary US IoT security label

Representatives of the Federal Communications Commission (FCC) and the National Institute of Standards and Technology (NIST) have recently unveiled a U.S. national IoT security label at the White House called the “U.S. Cyber Trust Mark” to inform consumers about the security, safety, and privacy of a specific IoT and Smart Home device. IoT security has been a problem for years with routers shipping with telnet enabled with default usernames and passwords, vulnerabilities in SDKs, unencrypted passwords transmitted over the network, millions of devices with older microcontrollers without built-in hardware security features, etc… There have been industry efforts to solve this such as the Arm PSA initiative, as well as regulations to prevent default usernames/passwords in new devices, but nothing about IoT security that can help a consumer find out if a device is supposed to be secure or not. The Cyber Trust Mark is supposed to address this issue. The […]