Former ST engineers offer free processor core
September 14, 2006 //
Simply RISC, a team of engineers formerly with STMicroelectronics NV who have been working in Catania, Italy and Bristol, England, has produced its first offering, a 64-bit processor codednamed Sirocco and now dubbed the S1 core.
LONDON Simply RISC, a team of engineers formerly with STMicroelectronics NV who have been working in Catania, Italy and Bristol, England, has produced its first offering, a 64-bit processor codednamed Sirocco and now dubbed the S1 core.
It is not clear what business model Simply RISC will pursue as it offers the core for free and free technical support, according to the Simply RISC website www.srisc.com.
"Simply RISC develops and supports CPU cores, peripherals and interfaces released under the GNU General Public License (GPL) to build up free hardware design of microprocessors, Systems-on-a-Chip (SoC) and Networks-on-a-Chip (NoC)," the team said on the website.
The S1 is a "cut-down" version of the OpenSPARC T1 multiprocessor, previously codenamed Niagara that targets embedded devices such as PDAs, set-top boxes and digital cameras.
The OpenSPARC T1 multiprocessor has been released under the GPL license and features eight SPARC CPU Cores and several peripherals, Simply RISC said on their website. The S1 takes one of the 64-bit SPARC cores from that design and adds a "Wishbone" bridge, a reset controller and a basic interrupt controller, to make it easy for a system engineer to integrate the design with other cores. Wishbone is an on-chip bus standard developed with the open hardware community.
As a derivative of the OpenSPARC T1, the S1 retains the ability to execute four concurrent threads at the same time; and operating systems support for OpenSolaris and GNU/Linux distributions, such as Ubuntu and Gentoo, which will detect four different CPUs even if on the chip the CPU core is only one. Simulation and synthesis of Verilog files which make upthe S1 design can be done using free software such as Icarus Verilog, Simply RISC said.
Future designs such as SoCs based on S1 and peripherals for it will be released on the Simply RISC webstie and on www.OpenSPARC.net and on www.OpenCores.org. The OpenCores project has been running as a loose alliance of students and semiprofessional chip developers since 2000.
The open hardware movement is strong in Europe. OpenSoCDesign (Madrid, Spain) has a distinct advantage. This Spanish startup is focusing on system development using open-source cores, and is helping create an infrastructure to make such cores more usable.
The British and Italian origins of Simply RISC has resulted in the group adopting as its logo a square Union flag but with Italian colors.
Cisco, Deutsche Telekom and Intel to help IoT startups
March 03, 2015
Challenge Up! is a joint Internet of Things (IoT) accelerator program announced by Cisco, Deutsche Telekom and Intel for ...
Opinion: The NXP/Freescale takeover and automotive electronics
Parrot takes instant 3D mapping to the sky
European chip market contracted in January
Finely patterned OLEDs prove key to organic lasers
Intel selects ST micromirrors for human-machine interface
March 03, 2015
STMicroelectronics is providing a control IC and a MEMS scanning micromirror to Intel for use in projection engine that fits ...
Printed OLEDs make large advertising more communicative
IKEA and Samsung back Qi wireless charging advance
Motor drive analyser leverages 8-channel, high-definition oscilloscope
- High Performance Portable DC Bench Power Supply: Save Money and Free Up Bench Real Estate by Building Your Own
- Software-Defined Radio Handbook
- A Four-Quadrant DC/DC Switching Regulator Smoothly Transitions from Positive to Negative Output Voltages for FPGA and Other Applications
- LED Driver with Integrated Spread Spectrum Reduces EMI without Adding Flicker
InterviewInfineon: CAN FD success goes at the expense of FlexRay
The faster version of the venerable CAN bus, CAN FD is currently taking off at several carmakers. Infineon's Thomas Böhm, Head of Body / Automotive, believes this could well go at the expense of FlexRay. ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
To ensure you have a good start in 2015, Freescale is giving away five of its QorIQ TWR-LS1021A Tower system modules, worth USD269 each, for EETimes Europe's readers to win.
The module is the most feature-rich and high-performance Tower system offered by Freescale, enabling compatibility and interoperability with the growing list of Tower expansion modules, offering an easily accessible...MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.