Cutting edge technology

Introduction: Some people may think that DSP as a product is very strange after it is worthless to create billions of dollars in value every year. But this is indeed the beginning of a good news. It has not disappeared, but it has only been integrated into every digital processing system.

Some people may think that DSP as a product is very strange after it has been worthless to create billions of dollars in value every year. But this is indeed the beginning of a good news. It has not disappeared, but it has only been integrated into every digital processing system. Efforts in IC technology have allowed the embedding of DSPs in silicon chips. The DSP used to be very large, but now it is too small to be seen.


Origin of DSP chip

DSP chip, also known as digital signal processor, is a microprocessor that is especially suitable for digital signal processing operations. The main application is to implement various digital signal processing algorithms in real time and fast. What's unique is that it handles data instantly, and it's this instant capability that makes DSP the best fit for applications that can't tolerate any latency.

The Harvard structure, which uses separate programs and data, has a dedicated hardware multiplier, extensively uses pipeline operations, and provides special DSP instructions that can be used to quickly implement various digital signal processing algorithms. Now there are many DSP products, there are more than 200 fixed-point DSPs and more than 100 floating-point DSPs. At present, the main suppliers are TI, ADI, Motorola, etc., TI has the largest market share leading products.

TI successfully launched its first generation DSP chip TMS32010 in 1982, which is a milestone in the history of DSP applications. Since then, DSP chips have been widely used. Because TMS320 series DSP chips are low-cost, easy to use, and powerful, they have become the most influential and successful DSP series processors.

The first programmable DSPTMS32010 used a quarter of its die for multipliers, and today's multipliers are so small that they have been used as bonding pads. The core theory of DSP can now also gain greater value in the world of embedded processors.

From another perspective, the signal processor is optimized for specific market needs. Rather than creating a DSP product line, it is better to create a product line of communication signal processors, audio signal processors, video signal processors, image signal processors and motor control processors, all of which can use DSP theory. And hardware.


DSP technology development trend

1 Digital signal processor core structure further improved, multi-channel structure and single instruction multiple data (SIMD) extra large instruction block ( LIM will dominate the new high-performance processors, such as Analog Devices' ADSP2116x.

2DSP and microprocessor fusion. Microprocessors are low-cost, mainly performing intelligent directional control tasks. General-purpose processors perform intelligent control tasks well, but digital signal processing is poor. DSPs have exactly the opposite function. In many applications, both intelligent control and digital signal processing, such as digital cellular phones, are required. Need to monitor and sound processing functions.

3DSP and high-end CPU integration. Most high-end GPP such as Pentium and Powerpc are super-scalar structure of SIMI instruction group, the speed is very fast.

4DSP Integration with SO. SOC (System-On-Chip) refers to the integration of a system on a chip, including DSP and system interface software.

5DSP core core integration is getting higher and higher. Reduce the DSP core The chip size has always been the development trend of DSP technology. The current use is more based on the RISC structure. With the introduction of new process technology, more and more manufacturers are beginning to improve the DSP core and put multiple DSP cores and MPUs. The core and peripheral circuit units are integrated on one chip to realize the DSP system level integrated circuit.

6 programmable DSP chip will be the leading product in the future. With the needs of personalized development, DSP can Programming provides manufacturers with more flexibility to meet the needs of manufacturers to develop more models of different models on the same DSP chip, and also to upgrade the DSP for the majority of users.

7 fixed-point DSPTake the mainstream. At present, among the DSP devices sold in the market, the mainstream products are still 16-bit fixed-point programmable DSP devices. With the low cost of DSP fixed-point computing devices, the advantages of smaller and smaller energy consumption are becoming more and more obvious. The DSP chip will still be the protagonist of the market.


DSP chip space is huge

With the sharp increase in demand for digital consumer products in China, and DSP's high-speed computing and synchronization processing capabilities for digital signals, DSP The application field will gradually expand from the mobile phone field to the new digital consumer field, so that the application area will span 3C and the distribution will become more and more balanced. DSP chips play an important role in smartphones. The DSP chip can bring better voice, audio and image experience to the mobile phone, which can greatly enhance the ability of the mobile phone to single-function, and make the mobile phone run faster.

Mobile broadband demand and DSP demand are positively changing. DSP-based ADSL and HFC are the two most commonly used broadband access technologies. At the same time, the general-purpose system based on DSP can realize the wireless access point communication system, which has good openness, flexible configuration and strong scalability. Therefore, the demand for mobile broadband and the demand for DSP are positively changing. With the popularization of mobile broadband, the future DSP market demand is expected.


China's bid farewell to the coreless era

The implementation of the special project has greatly improved the development speed of China's integrated circuit industry. From 2001 to 2016, the scale of China's IC market increased from 126 billion yuan to about 1.2 trillion yuan, accounting for nearly 60% of the global market share. Industrial sales expanded by more than 23 times, from 18.8 billion yuan to 433.6 billion yuan. Domestic research on DSP started late, but it developed rapidly. The CLP 14 has taken on the task of developing DSP chips.

10 years of grinding a sword, 14 with Longxin Company, Tsinghua University to develop domestic DSP chip Huarui 1 in 2012 through the nuclear high-base special group acceptance. Huarui 1 has been successfully applied to 14 dozen radar products, creating the “three of the most” applications for domestic multi-core DSP chip products: radar equipment application models are the most, single-set applications are the largest and the total number of applications is the largest.

"Hua Rui 1" representativeThe domestic DSP chip technology is the highest level. DSP and CPU multi-core architecture design technology is adopted in the design of processing system. The actual measurement shows that the processing power and energy consumption of “Hua Rui No.1” has obvious advantages. The multi-task real-time operating system is very stable, and the overall technical indicators of the chip reach or Better than the international level of similar products. Huarui No. 1 fills the gap in China's multi-core DSP field, and has great significance and influence on improving the independent research and development capabilities of China's high-end chips, improving the level of China's electronic equipment development, and ensuring national information security.

Huarui Chip Soul Core No. 1 was successfully developed by Wu Manqing, the 38th branch of China Electronics Group, and completed the test in 2012. Soul Core One (BWDSP100) is a 32-bit static superscalar processor that belongs to the second stage of DSP development. The chip is based on a 55nm manufacturing process and has complete autonomous knowledge.

Soul Core 1 reached the international mainstream DSP chip level, similar to the new analog device company (ADI) TS201 chip. The TS201 is a mainstream DSP chip from Analog Devices, Inc. It integrates high-speed DSP with fixed-point and floating-point calculations. The processor is widely used in the video, communication market and defense military equipment, and is suitable for applications with large data volume real-time processing.


Digital signal processor has become a mainstream device for signal processing system development because of its strong function, fast speed, simple interface, good stability, and convenient programming and development. It has been widely used in many fields such as communication, language, image, biomedicine, industrial control, instrumentation and so on. With the continuous development of new digital signal processing technology and microelectronic technology, the processing speed of DSP will continue to increase, and the application range will be more extensive, which will lay a solid foundation for the development of digital business.

In this era of informationization, DSP applications in the field of communications, digital audio and video products will become more and more popular, making the relevant market demand more and more, the future DSP market competition will become increasingly fierce. I believe that in the future, DSP technology will be more valued and paid attention to, and will bring great development for the advancement of technology.

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