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S3C2410 DMA explains in detail_s3c2410, DMA
Sunday, December 6th, 2009 at 14:53 | No commentsCategories: Embedded systemShort Content: The reason that must introduce S3C2410 DMA, because it was too important to the performance! Only then applied flexibly the DMA, CPU performance to be able to come up! S3C2410 has four DMA, each DMA support working basic same, but supports source Dest possibly slightly has the difference, sees Datasheet specifically. Here concrete DMA CONTROL register (DCON) the disposition showed that then draws out DMA each working. Atomic transfer: What refers to ... -
In ARM system DMA way in data acquisition application_ARM, s3c2410, DMA
Tuesday, December 1st, 2009 at 02:42 | No commentsCategories: Embedded systemShort Content: 1 introduction ARM takes one kind of 16/32 high performance, the low cost, the low power loss embedded RISC microprocessor. Applies generally in products and so on industrial control, expense class electronic products, communications system, wireless system. The majority ARM micro controllers integrated the DMA controller. And the direct memory deposits and withdraws (DMA) to take one kind of independence in the CPU backstage batch data transmission technology, by its fast, the highly effective characteristic obtained the widespread application ... -
Sound effect chip CS4235 in DSP embedded system
Tuesday, October 20th, 2009 at 21:35 | No commentsCategories: Embedded systemShort Content: Abstract: Through analyzes Windows Sound the System compatible sound card and PC machine the ISA main line's connection principle, sound effect chip CS4235 will apply based on the DSP embedded system, improved system's acoustic fidelity enormously; Uses DMA controller 8237A to realize DSP and the CS4235 hardware interface, follows the PnP agreement to solve DSP to software interface questions and so on CS4235 resources deployment as well as register read-write; Finally gives CS4235 in based on the DSP entire digitized ... -
With realizes - en.51rd.net based on the FPGA DSP real-time imagery processing platform’s design
Thursday, September 10th, 2009 at 21:18 | No commentsCategories: DSPShort Content: Before the drugs fill install the production, to carry on the examination to for medicinal purposes glass jar, the defective works rejection, can carry on the drugs the seal. Because our country for medicinal purposes control glass jar majority specifications are infinitely varied, like the bottle is high, the bottle bottom and bottle wall's thickness as well as medicine bottle's parameters and so on verticality, its target has the big difference, the use import equipment effect is not too ideal. ... -
Based on ARM7 fingerprint checking attendance machine design - 51rd Chinese electronic net
Wednesday, October 22nd, 2008 at 08:24 | No commentsCategories: SCMShort Content: Abstract: Take the ARM7 chip as the core, has designed a section of fingerprint checking attendance machine. This product has both the fingerprint checking attendance and the swipe card checks attendance two basic functions.Key word: ARM7; DMA; Checking attendance machine; Fingerprint gathering; Radio frequency cards Introduction The biological recognition technology depends upon its distinction uniqueness and the reliability, underwent near ten year development, the application was already getting more and more widespread and mature, at present the fingerprint recognition technology ... -
ADSP-TSl01 DMA applies - en.51rd.net in the infrared imagery processing system
Sunday, September 7th, 2008 at 16:09 | No commentsCategories: DSPShort Content: Abstract: Take the infrared imagery processing system which constitutes by the ADSP-TSl01 high speed figure processor and the EPM3256 complex programmable logic component as an example, introduces in detail the system the DSP DMA channel's application.Key word: Infrared imagery processing; ADSP-TSlOl; DMA; CPLD 1 introduction The infrared imagery processing system's data volume of goods handled is big. The processing algorithm is complex. The infrared imagery processing system which constitutes by the high speed figure processor and complex programmable logical component ...
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