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Under Linux environment based on I2C main line
Sunday, December 6th, 2009 at 21:42 | No commentsCategories: Embedded systemShort Content: 1 introduction I2C (Inter-Integrated the Circuit1 main line is one kind 2 type serial main lines which develops by Philips Corporation, uses in connecting the micro controller and the auxiliary equipment. It is the synchronous communication one special form, has the connection line to be few, the control mode is simple, the component seal form is small, correspondence speed higher merit. In the host from the correspondence, may have many I2C main line component simultaneously to receive on the ... -
PIC read-write EEPROM example and explanation_PIC, EEPROM
Tuesday, November 3rd, 2009 at 07:53 | No commentsCategories: Embedded systemShort Content: ; ****************************************************************************************; This is a program to test the function of reading -
AT24C01/02/04/08/16/32 series EEPROM read-write procedure_24C01, 24C02, 24C04, 24C08, 24C16, 24C32, EEPROM
Sunday, October 18th, 2009 at 05:05 | No commentsCategories: Embedded systemShort Content: /*------------------------------------------------------------------------------[explanation] 24Cxx I2C the EEPROM byte read-write driver, chip A0-A1-A2 must meet GND (24C65 to meet VCC, looks at DataSheet specifically).The present missing pages write, the page to read, with CRC check routine. The following procedure undergoes 50 confirmations, the batch effect waits for inspecting.For safety, in the procedure many NOP are the redundancy, hoped that the reader can further simplify, but must undergo the confirmation.Atmel 24C01 is quite special, for brief, programs alone for it.51 crystal oscillators are ... -
One kind based on monolithic integrated circuit and serial EEPROM intelligent combination lock
Saturday, November 29th, 2008 at 03:49 | No commentsCategories: SCMShort Content: Abstract this article introduced that one kind based on the monolithic integrated circuit and the serial EEPROM intelligent combination lock, realized to the system hardware design and the software has carried on the detailed description. This system uses at89C51 monolithic integrated circuit and AT24C01 serial EEPROM, simulates the I2C main line and at24C01 communication through AT89C51, realizes the combination lock function. Key word intelligence combination lock monolithic integrated circuit serial EEPROM AT89C51 AT24C01 1. introduction Electronic technology's ... -
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 ... -
Green environmental protection memory
Saturday, November 8th, 2008 at 09:49 | No commentsCategories: StorageShort Content: In view of the fact that the environment question receives people's widespread attention more and more, the global electron profession started to devote in promotes the low energy consumption in the market the product. The white electrical appliances' energy consumption rank is the sales data which the people pay attention, the reference energy consumption height is helpful to the control electrical bill; Now, not only we realize the energy consumption to be low may reduce the electrical bill, moreover is ... -
High density SPI EEPROM–SA25C020 DSP guidance
Wednesday, November 5th, 2008 at 21:49 | No commentsCategories: StorageShort Content: The abstract introduced that TMS320VC55XX series DSP based on 24 high density SPI EEPROM--SA25C020 guidance, starts Canada to plant the method; Analyzes the entire process, and unifies the example to study emphatically based on the C5509A guidance, Canada plants the method and realizes; Provides the concrete circuit design and bian the system realizes the software correspondingly.Key word SPI EEPROM boot TMS320VC5509A SA25C020 Introduction The DSP guidance is involves the DSP independent working the crucial question, usually uses the method ... -
Based on EEPROM unit array type keen amplifier’s design
Thursday, October 23rd, 2008 at 15:52 | No commentsCategories: StorageTags: EEPROM, keen amplifierShort Content: Abstract: This article through uses the array type keen amplifier's improvement structure which the already-on(native) part proposed, although this structure will cause the domain the area to increase, the chip cost will increase; But when it is in the low power loss pattern, but effective induction position on-line smaller charging current. And in foundation which in other power losses have not increased, the performance actually had the enhancement. And its design is simple, is very easy in the concrete technological ... -
Lengthens EEPROM the service life the method
Wednesday, October 15th, 2008 at 21:54 | No commentsCategories: StorageTags: EEPROMShort Content: EEPROM (Electrically Erasable Programmable Read Only Memory) is the electronic cleaning type non-erasable storage, it is one kind of non-volatile memory, is similar with cleaning type non-erasable storage (EPROM), after power source vanishing, the storage data still exists, must eliminate stores up in content, is not with the ultraviolet radiation way, but directly eliminates by the electronic signal then. Is precisely because EEPROM has the above characteristic, this component may widely apply in requests the high application situation to ... -
Based on NiosII SOPC in EEPROM Controller Core design
Tuesday, September 16th, 2008 at 05:36 | No commentsCategories: EDA/PLDShort Content: 1 introduction As a result of the FPGA appearance, caused us not to need to undertake the big risk and the high class piece expense or is in the small scale the research and development stage the chip to make the ASIC chip. But based on FPGA SOC--SOPC (on programmable piece system), because its programmable, specific needs to construct according to the user SOPC is one substitutes SOC to a certain extent the good plan. Altera Corporation has developed second ...
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