Arm adds virtual devices and launches Cortex-M85 processor

In addition to expanding Arm Virtual Hardware, Arm launches the Arm Cortex-M85 processor, describing it as the high performing and most secure Cortex-M to date.

The Arm Total Solution for Cloud Native Edge Devices is the first designed for Cortex-A and based on Corstone-1000.

(Arm Total Solutions for IoT combines hardware IP, platform software, machine learning (ML) models and tools collated to simplify development and accelerate product design. The Arm Corstone is a pre-integrated, pre-verified IP sub-system.)

According to Arm, this version for cloud native edge devices makes the power and potential of platform OS like Linux available to IoT developers. It allows application-class workloads to be developed for smart wearables, gateways and high-end smart cameras. 

The Corstone-1000 is Arm SystemReady-IR compliant and features a hardware secure enclave that supports PSA Certified for a higher level of security. According to Arm, OEMs can immediately enjoy the benefits of Project Cassini. 

The new Total Solution for Voice Recognition is based on the Corstone-310 sub-system. It is pre-integrated with the new Cortex-M85 and the Arm Ethos-U55 and is Arm’s highest ever performance microcontroller-based design, said the company. Target applications range from smart speakers and thermostats to drones and factory robots. Developers can also take the Corstone-310 and create additional products by combining it with different reference software, advised Arm.

The other announcement is the launch of the Arm Cortex-M85. This is a natural architectural upgrade path to Armv8-M for applications requiring significantly higher performance, said the company. 

It offers a 30 per cent scalar performance uplift, compared to the Cortex-M7 and includes Arm Helium technology to support endpoint ML and DSP workloads, In addition to Arm TrustZone technology, security features include Pointer Authentication and Branch Target Identification (PACBTI). This is a new architectural feature with enhanced software attack threat mitigation to help achieve PSA Certified Level 2. According to Arm, this is a security baseline for IoT deployments.

There are also several new Arm Virtual Hardware virtual devices, including Arm Virtual Hardware for the new Corstone designs as well as seven new Cortex-M processors ranging from Cortex-M0 to Cortex-M33. Arm is also expanding the library with third party hardware from partners including NXP, ST Microelectronics and Raspberry Pi. 

Arm Cortex-M85, Corstone-310 and Corstone-1000 are available for licensing now and can be accessed immediately in the cloud as part of Arm Total Solutions for IoT. 

Arm Virtual Hardware can be accessed at Third party hardware is available from partners including NXP (iMX8 Arm Cortex Complex), ST Microelectronics (STM32U5 Discovery Kit) and Raspberry Pi (RPi4).

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