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51 monolithic integrated circuits visit the mass memory unit to realize_memory, 51 MCU
Monday, October 26th, 2009 at 17:18 | No commentsCategories: Embedded systemShort Content: 1 introduction The MCS-51 series monolithic integrated circuit has the superior performance-to-price ratio, therefore the application breadth, the amount of use is also big; However it only then 16 address wires, can visit most greatly the storage space is 64K, and the expansion connection and the memory unification address, the expansion connection will take the massive address space, will cause this series monolithic integrated circuit in the data quantity big data acquisition system, storage space obvious insufficient. The author when developed ... -
DSP and memory FAQ_DSP, memory
Friday, October 16th, 2009 at 17:40 | No commentsCategories: Embedded systemShort Content: Memory omit image. I want to make outside now imagery processing system 0.1 pieces high speed ram to use for data 0.1 eprom which deposits the camera ... -
32 DSP two level of cache structural designs
Sunday, August 30th, 2009 at 03:23 | No commentsCategories: DSPShort Content: Abstract: Used flow from the top to design section of 32 DSP cache. This cache uses two levels of structures, the first level uses the Harvard structure, the second level uses the Princeton structure. This article elaborated the algorithm which in detail this cache structural design and uses. Key word: cache, DSP, memory system. 1 introduction Along with Semiconductor Technology's development, the DSP performance enhances unceasingly, is widely applied in the control, the correspondence, domains and so on ... -
Based on DSP multi-processor real-time development environment design
Saturday, August 29th, 2009 at 00:43 | No commentsCategories: DSPShort Content: Abstract: Is generally aims at the independent processor based on the DSP real-time development environment to carry on the development to design, when in a system has used many kinds of type DSP chips, often is unable simultaneously to use these development environment, is also unable to carry on the system-level development. This article proposed through the research one kind of multi-processor real-time development environment's design concept, it may support the many kinds of model processor's simultaneous development, causes the ... -
Realizes - en.51rd.net based on the TMS320VC5507 speech recognition system
Tuesday, June 9th, 2009 at 11:22 | No commentsCategories: DSPShort Content: Abstract: On the speech recognition piece the system may realize the simple man-machine interaction and the voice control, in the electrical appliances, the toy and in each kind of man-machine interaction system has the widespread application prospect. This article unifies Chinese pronunciation characteristic, has realized in the high performance specific person and the non-specific person on the TMS320VC5507 chip the small vocabulary isolated word recognition system. Uses based on the circulation buffer vertex examination algorithm, the double buffer's transmission mode ... -
EPA in communication protocol stack design key technologies research
Tuesday, December 9th, 2008 at 22:49 | No commentsCategories: Communication NetworksShort Content: Abstract: In the EPA communication protocol stack design, the memory management and the timer queue management is affects the agreement stack performance the important aspect. This article in view of the embedded system under the EPA network's characteristic, proposed the classified chain type memory formation's dynamic memory management method and the simple increasing Clock queue's clock management model, the test result indicated that this design method can the effective enhancement EPA agreement stack stability and timeliness. Key word: EPA; ... -
Based on CY7C68013 liquid crystal driving circuit design
Friday, November 28th, 2008 at 14:12 | No commentsCategories: SCMTags: connection, memoryShort Content: Abstract: In the intelligent measuring appliance and in the industrial control needs to demonstrate that frequently the frozen picture and the dynamic data information, this design use universal serial bus (USB) connection controller CY7C68013 Slave the FIFO connection technology, realizes the TFT liquid crystal box demonstration actuation, Slave the FIFO connection technology high speed to realize the video frequency to demonstrate has provided the safeguard. In the design realized truely using the USB connection technology real-time inserted hotly pulls out, ... -
Based on micro controller’s web server design - 51rd Chinese electronic net
Tuesday, November 25th, 2008 at 09:59 | No commentsCategories: SCMShort Content: Abstract: In recent years, along with the computer software and hardware technology's rapidly expand, computer's application oneself penetrated each domain gradually. Based on the WEB way and the SNMP way are the present two popular network management ways. This article introduced based on the RABBIT 2000 micro controllers, does not have operating system's embedded WEB server's design, and introduced based on the ARM7TDMI processor, and interface circuit's hardware circuit and software's design, this system cost is inexpensive, the user through the ... -
I2C serial EEPROM application system’s toughness design
Tuesday, November 11th, 2008 at 22:49 | No commentsCategories: StorageShort Content: Introduction In the embedded control system, usually must use the nonvolatile storage. Regardless of being time the power failure the maintenance needs to preserve establishment, saves the important record, the reliable nonvolatile storage is one kind of ideal choice. Exterior the non-volatility saves uses the serial storage to realize frequently, the I2C connection product is the most commonly used one type. However, this product and other EEPROM memory are the same, when use also has some conditions to meet latent ... -
In high speed data gathering system’s memory and transmission control logic design
Sunday, November 9th, 2008 at 15:49 | No commentsCategories: StorageTags: memory, TransmissionShort Content: Along with information science's swift development, the data acquisition and the storage technology widely apply in domains and so on radar, correspondence, telemetering remote sensing. In the high speed data gathering system, transforms after ADC the data needs to save in the memory, carries on corresponding processing again, guaranteed that fast accurate data transmission processing realizes a high speed data gathering key. Is very high as a result of the high speed ADC transfer ratio, but large capacity RAM the ...
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