The AT24C512 provides 524,288 bits of serial electrically erasable and programmable read only memory (EEPROM) organized as 65,536 words of 8 bits each. The device鈥檚 cascadable feature allows up to four devices to share a common two-wire bus. The device is optimized for use in many industrial and commercial applications where lowpower and low-voltage operation are essential. The devices are available in spacesaving 8-pin PDIP, 8-lead EIAJ SOIC, 8-lead JEDEC SOIC, 8-lead TSSOP, 8-lead Leadless Array (LAP), and 8-lead SAP packages. In addition, the entire family is available in 2.7V (2.7V to 5.5V) and 1.8V (1.8V to 3.6V) versions.
標(biāo)簽： electrically programmable provides erasable
上傳時(shí)間： 2017-04-09
上傳用戶：cc1015285075
R1EX24xxx series are two-wire serial interface EEPROM (Electrically Erasable and Programmable ROM). They realize high speed, low power consumption and a high level of reliability by employing advanced MNOS memory technology and CMOS process and low voltage circuitry technology. They also have a 128-byte page programming function to make their write operation faster. Note: Renesas Technology鈥檚 serial EEPROM are authorized for using consumer applications such as cellular phone, camcorders, audio equipment. Therefore, please contact Renesas Technology鈥檚 sales office before using industrial applications such as automotive systems, embedded controllers, and meters
標(biāo)簽： Electrically Programmable interface Erasable
上傳時(shí)間： 2014-01-07
上傳用戶：xiaohuanhuan
The main MIPS processor of SMP8630 comes with a JTAG interface, allowing: access to caches and data bus (DRAM) with a bandwidth of about 200kbit/s examining the processor state whatever the execution mode (monice) connecting to monice using mdi-server and using a gdb client on the processor to step and break accurately whatever the execution mode running semi-hosted applications fl ash write tool memory testing (MT command) real-time traces: has not been built in CPU (Config3_TL=0) and only supported by MajicPLUS probes (maybe built into emulator?)
標(biāo)簽： interface processor allowing access
上傳時(shí)間： 2013-12-19
上傳用戶：youke111
Cromfs is a compressed read-only filesystem for Linux. Cromfs is best at archiving gigabytes of big files that have a lot of redundancy. It aims primarily at achieving a strong compression, even at the cost of memory and CPU time resources. It uses the LZMA compression algorithm from 7-zip and block merging.
標(biāo)簽： Cromfs compressed filesystem archiving
上傳時(shí)間： 2013-12-15
上傳用戶：王楚楚
This project features a complete JPEG Hardware Compressor (standard Baseline DCT, JFIF header) with 2:1:1 subsampling, able to compress at a rate of up to 24 images per second (on XC2V1000-4 @ 40 MHz with resolution 352x288). Image resolution is not limited. It takes an RGB input (row-wise) and outputs to a memory the compressed JPEG image. Its quality is comparable to software solutions.
標(biāo)簽： Compressor Hardware Baseline features
上傳時(shí)間： 2017-04-21
上傳用戶：wyc199288
this is ram both asynchronous and synchronous reset signals which is basic for any registers and basic memory element
標(biāo)簽： asynchronous synchronous and registers
上傳時(shí)間： 2017-04-23
上傳用戶：cc1915
（1）測(cè)試外部數(shù)據(jù)RAM： 根據(jù)我們定義的邏輯，外部RAM在數(shù)據(jù)空間中定義在0x8000－0xFFFF，共32k字，占據(jù)RAM中的低32K存儲(chǔ)空間。提供2種測(cè)試方法，采用一種方式即可。 硬件仿真模式下，將目標(biāo)板上電。 第一種方法：采用用程序測(cè)試實(shí)驗(yàn) 程序所在目錄ex1_RAMTest。 該程序執(zhí)行的功能是對(duì)外部數(shù)據(jù)RAM區(qū)0x8000－0xFFFF,從0x8000開始寫并且讀數(shù)據(jù)0x5555 。如果正常則寫讀下一個(gè)地址，直到 。如果正常則所有的地址操作完畢后，核心板的指示燈會(huì)變亮。否則，如果寫入數(shù)據(jù)后，讀出的不正確，則指示燈會(huì)不斷閃爍。 在CCS2000中的操作如下： 1. Progect->Open,打開該目錄中的工程文件。 2. Progect->Rebuild All,編譯鏈接 3. File->Program 4. Debug->Go Main 5. Debug->RUN(快捷鍵F5) 如果正常可以看到燈在熄滅約4秒后變亮。（說(shuō)明：對(duì)整個(gè)數(shù)據(jù)RAM區(qū)的操作時(shí)間其實(shí)很短，為便于觀察，本程序中加入了延時(shí)）。 打開View->Memory ，然后填入地址0x8000,然后在PAGE欄選擇DATA。點(diǎn)擊確定，即可顯示0x8000地址開始的數(shù)據(jù)，用戶會(huì)發(fā)現(xiàn)從這個(gè)地址開始往后的數(shù)據(jù)均為剛被寫入的0x5555。
標(biāo)簽： RAM 測(cè)試 數(shù)據(jù) 定義
上傳時(shí)間： 2013-12-08
上傳用戶：www240697738
The W78E58B is an 8-bit microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E58B is fully compatible with the standard 8052. The W78E58B contains a 32K bytes of main ROM and a 4K bytes of auxiliary ROM which allows the contents of the 32KB main ROM to be updated by the loader program located at the 4KB auxiliary ROM 512 bytes of on-chip RAM four 8-bit bi-directional and bit-addressable I/O ports an additional 4- bit port P4 three 16-bit timer/counters a serial port. These peripherals are supported by a eight sources two-level interrupt capability. To facilitate programming and verification, the ROM inside the W78E58B allows the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security
標(biāo)簽： microcontroller programmable in-system W78E58B
上傳時(shí)間： 2017-04-27
上傳用戶：yiwen213
為求解大規(guī)模TSP 問(wèn)題,提出了并行人工免疫系統(tǒng)的塔式主從模型( Towerlike Master2Slave Model , TMSM) ,和基于TMSM的并行免疫記憶克隆選擇算法(Parallel Immune Memory Clonal Selection Algorithm ,PIMCSA) .
標(biāo)簽： TMSM Master2Slave Towerlike Paralle
上傳時(shí)間： 2013-12-18
上傳用戶：guanliya
2007年全國(guó)大學(xué)生電子設(shè)計(jì)大賽，A題音頻信號(hào)分析儀的全部源程序。 單片機(jī)為c8051f120，系統(tǒng)時(shí)鐘倍頻至96MHZ。 main.c是一個(gè)包含五級(jí)菜單的主函數(shù)。 FFT.C是進(jìn)行fft變換，將時(shí)域信號(hào)變換成頻域信號(hào)。 flash.c是讀寫片外flash存儲(chǔ)器的程序,可以將分析結(jié)果保存,以備調(diào)用. z7290.c是周立功7290鍵盤芯片的驅(qū)動(dòng)程序. FFT_xgjis.c是對(duì)變換后的頻譜進(jìn)行分析和運(yùn)算. FFT_CodeTable.c是一個(gè)正弦表,在FFT的時(shí)候調(diào)用. LCD320240.c是320*240的液晶驅(qū)動(dòng)程序,液晶的控制器是SED1335. 所有的.h文件提供了子函數(shù)的定義. 本程序用KEIL3 802版本編譯通過(guò)，將所有的.C文件添加到工程中，并編譯main.c 注意兩點(diǎn):1.器件選擇c8051f120. 2.在target中將時(shí)鐘設(shè)為96M.同時(shí)必須將Memory Model 改成large--XDATA.默認(rèn)的是small. 因?yàn)楸驹O(shè)計(jì)占用的資源是非常大的. Program Size: data=81.3 xdata=6811 code=43056
標(biāo)簽： 2007 大學(xué)生電子 設(shè)計(jì)大賽
上傳時(shí)間： 2014-01-05
上傳用戶：manlian
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