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使用DS1814 MicroMonitor來(lái)控制微處理器重置
Abstract: The following application note shows simple circuits using the DS1814 MicroMonitor. Circuits include interfacing with an 8051 microprocessor, interfacing with a PIC microcontroller, and using an LED to indicate reset. ...
2009-04-23 標(biāo)簽：微處理器 808
指定石英晶體-Specifying Quartz Cryst
Abstract: This article explains the specifications and characteristics of crystals and crystal oscillators, and aids in specifying crystals and working with crystal vendors. The article covers the significant performance characteristics of...
2009-04-23 標(biāo)簽：石英晶體 1589
超高速微控制器硬件串口能力增強(qiáng)-Ultra High Spe
Abstract: This application note looks at the new serial port features found in the Dallas Semiconductor DS89C430 and DS89C450 ultra high-speed microcontrollers. The addition of a clock multiplier allows the user to benefit by selecting a c...
DS89C430/DS89C450超高速閃存微控制器存儲(chǔ)器接
Abstract: The Dallas Semiconductor DS89C430 ultra high-speed microcontroller is a 1-clock-per-machine-cycle device. The DS89C430 can be used as a drop-in replacement for older 8051 architecture designs. However, memory interface timing mus...
2009-04-23 標(biāo)簽：存儲(chǔ)器 1163
Interfacing to the DS1631 Digi
Abstract: This application note introduces the user to software for interfacing a DS5000 (8051 compatible) microcontroller to the DS1631 temperature sensor. The DS1631 incorporates a standard 2-wire serial digital interface. Software code ...
2009-04-23 標(biāo)簽：Interfacin 1221
實(shí)施串口FIFO的雙數(shù)據(jù)指針-Implementing a
Abstract: The Dallas Semiconductor high-speed microcontroller family allows the system designer to optimize serial communications via the internal UART. This application note demonstrates the use of a circular buffer utilizing the dual dat...
2009-04-23 標(biāo)簽：數(shù)據(jù)指針 1465
快速內(nèi)存?zhèn)鬏數(shù)某咚匍W存微控制器-Fast Memory T
Abstract: The Dallas Semiconductor Ultra High-Speed Flash microcontroller features dual data pointers with auto increment/decrement and toggle select. This application note compares origingal 8051 architecture using one data pointer to the...
2009-04-23 標(biāo)簽：微控制器 851
A Collection of Extended Math
Abstract: This article gives assembly code examples for reserving internal memory, simple ASCII conversion, 32-bit subtraction, 16x16 multiple and 32-bit divide using 8051-compatible microcontrollers such as the MAX7651 and MAX7652. ...
2009-04-23 標(biāo)簽：MAX7651 1043
偽隨機(jī)數(shù)生成常規(guī)的MAX765x微處理器-Pseudo-Ra
Abstract: This application note gives a function for random number generation using the MAX7651/52 microcontroller with 12-bit analog-to-digital converter (ADC). Applications such as spread-spectrum communications, securi...
2009-04-23 標(biāo)簽：微處理器 1352
性能優(yōu)異的1-Wire網(wǎng)絡(luò)驅(qū)動(dòng)器
摘要：本文介紹了一種基于微控制器的1-Wire®主機(jī)接口，適用于小規(guī)模、中等規(guī)模以及大規(guī)模的1-Wire網(wǎng)絡(luò)。采用精細(xì)的阻抗匹配和"智能" (軟件控制)強(qiáng)上拉、擺率控制等方法保證網(wǎng)...
2009-04-23 標(biāo)簽：驅(qū)動(dòng)器 1544
高速8051微控制器：引領(lǐng)成長(zhǎng)與創(chuàng)新之路
摘要：本文介紹了Dallas Semiconductor對(duì)傳統(tǒng)8051微控制器的改進(jìn)技術(shù)，創(chuàng)造了引腳兼容的高性能替代產(chǎn)品，能夠達(dá)到33 MIP的速度。除此之外，還包括多數(shù)據(jù)指針、擴(kuò)展存儲(chǔ)器尋址(達(dá)16MB)...
2009-04-23 標(biāo)簽：微控制器 1065
微控制器時(shí)鐘―選擇晶振諧振槽路、RC振蕩器還是硅振蕩器？
摘要：晶振、陶瓷諧振槽路、RC (電阻、電容)振蕩器以及硅振蕩器是適用于微控制器(µC)的四種時(shí)鐘源。針對(duì)具體應(yīng)用優(yōu)化時(shí)鐘源設(shè)計(jì)依賴于以下因素：成本、精度和環(huán)境參數(shù)。...
2009-04-23 標(biāo)簽：微控制器 1211
Driving LEDs with Constant Cur
Abstract: This application note discusses techniques to drive LEDs with the MAX6956 and MAX6957 I²C and SPI constant current static LED drivers. These techniques can be applied to other I/O expanders with constant current (internally ...
2009-04-23 標(biāo)簽：led 787
Driving LEDs with Open Drain P
Abstract: This application note discusses techniques for driving LEDs with the MAX6964, MAX6965, MAX7313, MAX7314, MAX7315 and MAX7316 I/O expanders (GPIOs). These techniques can be applied to other I/O expanders with open-drain outputs, a...
2009-04-23 標(biāo)簽：led 1324
驅(qū)動(dòng)LED與推挽輸出端口擴(kuò)展器-Driving LEDs w
Abstract: This application note discusses techniques for driving LEDs, using the MAX7300, MAX7301, MAX7310, MAX7311, and MAX7312 I2C and SPI I/O expanders (GPIOs). These techniques can be applied to other I/O expanders with push-pull outpu...
Dual Voltage Tracking Circuit
Abstract: This note describes a dual tracking controller for a single I/O voltage and two core voltages. It describes how to apply the circuit to one or many core voltages. Principles covered include: the need for tracking, practical ...
2009-04-23 標(biāo)簽： 1099
The Effects of Adjusting the D
Abstract: The DS1086L is a 3.3V spread spectrum oscillator that is used in applications concerned with complying with electromagnetic compatibility (EMC) standards such as FCC part 15 or CISPR 22.Ideally with this architecture the peak pow...
2009-04-23 標(biāo)簽：emc 696
超高速閃存微控制器軟件的SPI-Ultra-High-Spe
Abstract: This application note introduces a software (bit bang) SPI™ library for use with Ultra High-Speed Flash Microcontrollers, such as the DS89C430 and DS89C450. The application interface to the library is explained along with a...
2009-04-23 標(biāo)簽：微控制器 893
利用MAX7651實(shí)現(xiàn)ADC轉(zhuǎn)換
摘要：本文提供了利用MAX7651評(píng)估板實(shí)現(xiàn)模/數(shù)轉(zhuǎn)換的源代碼和函數(shù)。它是MAX7651評(píng)估板提供的3個(gè)應(yīng)用例程之一，能夠進(jìn)行寫(xiě)、編譯和下載等簡(jiǎn)單的編程功能。 另請(qǐng)參考：...
為MAX7651評(píng)估板配置Keil µVisio
摘要：本文討論了為MAX7651評(píng)估板建立項(xiàng)目和配置Keil µVision® IDE的操作流程，并給出了一個(gè)第三方的應(yīng)用實(shí)例：程序編寫(xiě)、編譯以及下載到MAX7651評(píng)估板的步驟。 ...
2009-04-23 標(biāo)簽：MAX7651 1338
利用MAX7651評(píng)估板的串行下載器將程序裝載到閃存內(nèi)
摘要：這是第三方開(kāi)發(fā)的應(yīng)用例程的第三部分，補(bǔ)充MAX7651EVKIT用戶指南的內(nèi)容。介紹了通過(guò)串行下載器和超級(jí)終端(HyperTerminal)將HEX代碼裝載到MAX7651EVKIT目標(biāo)板的具體步驟。 ...
2009-04-23 標(biāo)簽：MAX7651 1357
驅(qū)動(dòng)高性能ASIC和微處理器
摘要：今天的高性能ASIC和微處理器可能會(huì)消耗高達(dá)150W的功率。對(duì)于1V至1.5V的電源電壓，這些器件所需的電流很容易超出100A。采用多相DC-DC轉(zhuǎn)換器為這些器件提供電力是更加可行的方...
Keil C編譯器的使用與DS89C430/450
Abstract: This application note describes how to use the Keil uVision suite of tools to build a C application for the Ultra-High-Speed Flash family of microcontrollers, which includes the DS89C430 and the DS89C450. The process of loading t...
2009-04-23 標(biāo)簽：編譯器 2053
Using the Keil uVision Debugge
Abstract: This application note describes how to use the Keil µVision2 suite of tools to debug an application for the Ultra-High-Speed Flash family of microcontrollers, which includes the DS89C430 and DS89C450. This process involves ...
2009-04-23 標(biāo)簽：DS89C4x0 1549
即時(shí)效能與閃存微控制器-Instant Performanc
Abstract: The ultra-high-speed flash microcontrollers (UHSFM) are 5V, 1-clock 8051s with integrated flash and SRAM. These UHSFMs drop into existing 8051 applications and deliver an instant boost in speed. This application note discusses th...
2009-04-23 標(biāo)簽：微控制器 757
Efficient Bit-Banged SPI Port
Abstract: A fast SPI port can be bit-banged through GPIO pins and serve as a lower cost alternative to 8051-compatible microcontrollers with SPI ports. The code shown in this application note takes advantage of 8051-specific features to cr...
2009-04-23 標(biāo)簽：microcontr 1698
硅振蕩器取代晶體和陶瓷諧振器
摘要：硅振蕩器能夠替代大多數(shù)微控制器電路中的晶體和陶瓷諧振器。除了其抗振動(dòng)、抗沖擊及抗EMI等優(yōu)點(diǎn)外，硅定時(shí)器件比晶體和陶瓷諧振器更小且更容易使用。該應(yīng)用筆記詳細(xì)...
2009-04-23 標(biāo)簽：諧振器 1261
Altera交付Stratix IV GX收發(fā)器信號(hào)完整性開(kāi)
Altera公司宣布，開(kāi)始提供 Stratix IV GX 版收發(fā)器信號(hào)完整性開(kāi)發(fā)套件。這一全功能硬件開(kāi)發(fā)平臺(tái)裝配了Altera Stratix IV GX FPGA，其收發(fā)器工作速率高達(dá)8.5 Gbps，使工程師能夠迅速方便地進(jìn)...
2009-04-23 標(biāo)簽：Altera 806
Atheros ROCm GPS技術(shù)力助Mio與Magell
日前，全球無(wú)線與有線通信領(lǐng)域創(chuàng)新技術(shù)公司Atheros Communications, Inc.宣布，Mio 與 Magellan 公司的數(shù)款新型個(gè)人導(dǎo)航設(shè)備 (PND) 采用 Atheros ROCm GPS 技術(shù)后，即便是在極富挑戰(zhàn)性的條件下，...
2009-04-23 標(biāo)簽：Atheros 1082
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