High-performance embedded ARM MPU in medical electronic systems (1)

<P> Present, the global medical electronics industry is gradually showing attractive prospects for development, increasing the rate of product replacement, at the same time, due to the special nature of medical electronics product itself, on the components of the performance, power, reliability and .and other aspects of integrated high demands made. .World's leading semiconductor manufacturers have well-known series of products suitable for the applications. .</ P> <P> core 32-bit ARM-based embedded microprocessor (MPU), its high performance, low power consumption and rich on-chip resources, a number of medical electronic products become the preferred development platform. .Which, Cirrus Logic has introduced the flagship product EP9315, is the most integrated ARM processor. .The ARM920T processor core, with 200MHz frequency, high-performance, embedded math coprocessor, graphics acceleration engine, such as integrated interfaces, including IDE and PCMCIA peripheral circuits, including the rich, to meet industrial standards and an attractive .power cost, making it stand out in many embedded microprocessor, the next generation of medical electronics product development platform the ideal choice. .</ P> <P> applications </ P> <P> wide range of medical electronic products, features vary. .Classified according to their applications, including ultrasound imaging system, multi-parameter monitoring systems, conventional testing systems. .</ P> <P> of medical electronic products are now always use the latest technology in order to obtain a strong performance to complete a number of increasingly complex algorithms and features to meet the escalating demand for clinical application. .Their application needs mainly in the following areas: </ P> <P> 1. With the gradual increase performance, you need hardware to do a lot of algorithms and logic operations. .Such as the B-and high-end monitors and other products have begun extensive use of FPGA devices; </ P> <P> 2. Large-size touch-screen display and a wide range of applications. .At present ultrasound products, multi-parameter monitors, and some products such as blood tests, biochemical analyzer, etc most of the use of 10 'to 15' range of large-size display, using 6? 0 × 480,800 × 600 or 1024 × 768 of .resolution. .In addition, the touch screen used in the field more and more widely; </ P> <P> 3. Large amount of data storage. .B-ultrasound and color Doppler ultrasound as the result of the application layer software products such as large and growing storage needs of image depth, has begun an external standard IDE hard disk; </ P> <P> 4. Peripheral interface needs. .Such as network interface and USB interface in the medical electronics products have been essential; </ P> <P> 5. Audio Codec application. .For example, in ultrasound systems, Audio Codec needs to be done through the Doppler audio data encoding and decoding; </ P> <P> 6. Portable products, an increase in the degree of concern for power consumption. .</ P> <P> the wide range of applications demand a higher microprocessor platform requirements, engineers in the selection often want faster, more integrated and lower power consumption, especially in the high .integration, not only can ensure the convenience of design and reliability, but also to effectively control costs. .</ P> <P> EP9315 unique advantages </ P> <P> microprocessor as the core of the system control devices, are often the targets of its engineers in the selection of most concern. .And the other based on ARM9 embedded microprocessor cores compared, Cirrus Logic's EP9315 both in overall performance, on-chip peripheral interfaces, and system costs, has obvious advantages. .EP9315 block diagram of Figure 1. .</ P> <P> </ P> <P align=center> </ P> <P> EP9315 indicators are as follows: </ P> <P> 1. Integrated ARM920T core clocked at 200MHz, and support for Linux ., Windows CE and many other embedded operating system, memory management unit (MMU). .Has a 16KB instruction cache and 16KB data cache; </ P> <P> 2. Embedded MaverickCrunch math coprocessor, significantly improve on single / double-precision integer and floating-point operation speed, operation of complex algorithms help. .This is very rare in other ARM microprocessor; </ P> <P> 3. Integrated 2D graphics acceleration engine, the block copy, block fill and other operations, enhance the system's image processing capabilities. .The image acceleration engine independent of the microprocessor will not increase the system overhead. .Supports up to 1024 × 768 resolution, the basic medical and electronic products to meet the most large-size panel applications; </ P> <P> 4. A wealth of on-chip / peripheral interface resources, can meet all kinds of medical electronics is currently .product applications. .Can be seen from Table 1 Cirrus Logic ARM9-based microprocessor of the full range of parameters. .</ P> <P> </ P> <P align=center> </ P> <P> Cirrus Logic sound system design and technical support </ P> <P> order to meet the customer's simultaneous development, shorten the development cycle .to improve design quality, Cirrus Logic Corporation, a specially set up in Beijing, more than 20 engineers from the technical support center, hardware and software products is responsible for EP93xx technical support. .Can not only provide design reference development boards, etc., and provide a lot of software support services, including Windows CE platform, the BSP source code, driver source code and the Linux kernel source code and development platform for a complete kit. .Cirrus Logic, General Manager of China and Hong Kong, Peter said: "We not only provide customers with chips, more importantly, we can provide complete solutions and development of technical support. There is no doubt that this difficulty of reducing customer development .great help. "</ P> <P> success stories </ P> <P> Already some companies choose EP9315 as system processing platform. .Emperor's hardware designer, said: "We chose EP9315 as a platform for B-system upgrades, primarily value the following 3 points: 1. Integrated math co-processor, compared to the same type of products in the algorithm processing speed is much faster; 2 .. support the resolution, to meet the requirements for image display, without adding an extra video codec chip; 3. to provide IDE interface, because the B-products will be used in hard disk and DVD drive. "</ P> < .P> Development of multi-parameter monitor products in Shenzhen Adecon company has also extensive use of the chip, the chief engineer that the EP9315 chip with industrial grade reliability, which is extremely important in medical devices; In addition, the complete technical support for pre- .clears the way for development. .</ P> <P> EP9315 provides commercial and industrial grade two models (Table 2), while providing lead-free products. .</ P> <P> </ P> <P align=center> </ P> <P> product solutions </ P> <P> Product Information: </ P> <P> EDB9315A Engineering Development Kit (EDB9315A .Kit), including: </ P> <P> 1. EDB9315A Development Board (Development Board) </ P> <P> 2. RS-232 serial cable (Null-Modem System) </ P> <P> 3. Switch .Power: +5 V, 4A, 110V/220V compatible </ P> <P> 4. "Quick Start Guide" (Quick Start Guide) </ P> <P> 5. Product Registration Card (Registration Card) </ P .> <P> 6. IDC10-to-DB9 converter cable </ P> <P> 7. IDE hard disk ribbon cable </ P> <P> 8. 3.5 "-to-2.5" notebook hard drive adapter </ P> .<P> 9. HDD power adapter (2x1 Header to HDD Power Connector Adapter) </ P> <P> 10. Microsoft WinCE 5.0 Platform. Builder development environment CD-ROM </ P> <P> 11. ARM RealView Suite development environment .CD-ROM </ P> <P> 12. IAR development environment CD-ROM </ P> <P> 13. EDB9315A development board system CD (EDB9315A system resource CD), including: </ P> <P> EDB9315A development board documentation < ./ P> <P>.