Product category:
Embedded Software and Operating Systems
News Release from: Cambridge Consultants | Subject: BlueStack and Interface Express
Edited by the Electronicstalk Editorial
Team on 09 May 2006
Design consultancy takes quick route to
Bluetooth
Cambridge Consultants' Bluetooth protocol stack and profile library are playing a key role in Purple Labs' design work on Grundig's fast-growing cellphone range.
Cambridge Consultants' Bluetooth protocol stack and profile library, BlueStack and Interface Express, are playing a key role in Purple Labs' design work on Grundig's fast-growing cellphone range With the launch of two new Grundig designs, the E660 and G500i, Purple Labs has now used the software on four Grundig handsets, ranging from a low-cost model to state-of-the-art multimedia designs
This article was originally published on Electronicstalk on 5 Nov 2002 at 8.00am (UK)
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The handset design consultancy Purple Labs chose the software for its ease of portability, and ability to run on processors with limited processing resources, as the target embedded systems in question range widely in performance, and employ either a proprietary real-time multitasking operating system or Linux.
"A key element of Purple Labs' service is rapid and right-first-time turnaround of designs, which is supported by a library of proven mobile phone design features", says Dennis O'Donovan, Managing Director of Purple Labs.
"The ease of integration of BlueStack and Interface Express allows us to deliver custom implementations of Bluetooth to clients and the ability to offer new Bluetooth functions such as streaming stereo".
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"Bluetooth-related functionality has undoubtedly become an important driver in mobile phone markets", adds Steve Pearce, software development manager at Cambridge Consultants.
"Developers need to be able to act fast to meet the evolving demand for mobile phone functionality, and Interface Express and BlueStack provide a versatile platform to support OEMs and ODMs operating in this dynamic market".
The profiles and protocol stack - Interface Express and BlueStack - are optimised for deeply embedded applications with limited hardware resources.
The software offers a highly efficient and simple-to-apply platform for embedding Bluetooth at minimal cost, an approach that has resulted in major success - with implementations on around half of today's qualified Bluetooth designs.
Interaction between profiles and the host application is reduced through an optimised API design.
For example, a single API call registers a profile, providing a multitude of settings such as security, device visibility and service discovery records.
Such features minimise the need to understand Bluetooth protocol specifications in detail, and can substantially speed product development.
The software also features a compact and efficient memory management subsystem, giving developers complete control over how much system RAM is used by the Bluetooth firmware.
The load on the host's processing resources is also minimised by "zero copy" data transmission and reception functionality, which ensures that data is not copied unnecessarily between RAM locations.
This attention to detail helps make it easy to add Bluetooth to existing designs, and to expand the capabilities of the Bluetooth system with minimal impact on the host processor.
Interface Express and BlueStack have been engineered for portability, and will run on virtually any platform and operating system.
Among the processors that the software has already been ported to are ARM, Calypso, HC6811, MIPS, XAP and V850.
The list of operating system implementations includes Windows, WinCE, QNX, Linux, Nucleus Plus and Bare-board.
The software also comes with its own real-time scheduler, making it easy to use without an operating system - providing significant savings for cost-sensitive products.
The library of application profiles available to OEMs is extensive and includes: A2DP, BIP, BPP, CTP, DUN, FAX, FTP, HCRP, ICP, HFP, HID, HSP, LAN, OPP, PAN, PBAP, SAP, SPP and SYNC.
This wide choice includes many key utilities for realising emerging wireless products for markets outside of the core mobile phone and headset Bluetooth applications, such as HFP and SAP (hands free and SIM access) for automotive applications, and CTP (cordless telephony) for home applications.
In addition to providing software tools for developers employing Bluetooth as a peripheral to an embedded system, Cambridge Consultants offers a powerful tool called xIDE for Interface Express for developing hostless, single-chip applications.
This provides a development environment for the XAP microcontroller integrated in CSR's market-leading Bluetooth device family, BlueCore.
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