通過對LCD1602/LCD12864顯示模塊控制時(shí)序和指令集的對比分析，利用Verilog HDL描述語言完成了多功能LCD顯示控制模塊的IP核設(shè)計(jì)．所設(shè)計(jì)的LCD顯示控制器具有很好的可移植性，只需通過端口的使能參數(shù)配置便可以驅(qū)動(dòng)LCD1602/LCD12864模塊實(shí)現(xiàn)字符或圖形的實(shí)時(shí)顯示，并且該多功能LCD控制器的可行性也在Cyclone II系列的EP2C5T144C8 FPGA芯片上得到了很好的驗(yàn)證．
上傳時(shí)間： 2015-01-01
上傳用戶：wwwwwen5
基于Altera公司FPGA芯片EP2C8Q208，嵌入MC8051 IP Core，用C語言對MC8051 IP Core進(jìn)行編程，以其作為控制核心，實(shí)現(xiàn)系統(tǒng)控制。在FPGA芯片中，利用Verilog HDL語言進(jìn)行編程，設(shè)計(jì)了以MC8051 IP Core為核心的控制模塊、計(jì)數(shù)模塊、鎖存模塊和LCD顯示模塊等幾部分，實(shí)現(xiàn)了頻率的自動(dòng)測量，測量范圍為0.1Hz~50MHz，測量誤差0.01%。并實(shí)現(xiàn)測頻率、周期、占空比等功能。
上傳時(shí)間： 2013-10-27
上傳用戶：潛水的三貢
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 圖Figure 1. Local Safety System
標(biāo)簽： FPGA 安全系統(tǒng)
上傳時(shí)間： 2013-11-14
上傳用戶：zoudejile
用Verilog HDL實(shí)現(xiàn)I2C總線功能
上傳時(shí)間： 2013-11-05
上傳用戶：sssl
PADS高級教程，PADS BlazeRouter功能簡介之交互式高速PCB設(shè)計(jì)。 ? BlazeRouter設(shè)計(jì)環(huán)境
標(biāo)簽： BlazeRouter PADS PCB 交互式
上傳時(shí)間： 2013-11-12
上傳用戶：hn891122
IPC介電常數(shù)測試方法
上傳時(shí)間： 2013-11-15
上傳用戶：gaoliangncepu
altium designer高級功能介紹
標(biāo)簽： designer altium summer 教程
上傳時(shí)間： 2013-11-03
上傳用戶：wyc199288
用FPGA設(shè)計(jì)多功能數(shù)字鐘
上傳時(shí)間： 2013-10-27
上傳用戶：ommshaggar
文章針對基板材料的介電常數(shù)與介電損耗的關(guān)系加以論述，并對它們與外部環(huán)境的關(guān)系做出相應(yīng)的闡述，使得在PCB的制造中對各種基板材料進(jìn)行合理正確的評估和使用。
上傳時(shí)間： 2013-11-13
上傳用戶：royzhangsz
一些應(yīng)用利用 Xilinx FPGA 在每次啟動(dòng)時(shí)可改變配置的能力，根據(jù)所需來改變 FPGA 的功能。Xilinx Platform Flash XCFxxP PROM 的設(shè)計(jì)修訂 (Design Revisioning) 功能，允許用戶在單個(gè)PROM 中將多種配置存儲(chǔ)為不同的修訂版本，從而簡化了 FPGA 配置更改。在 FPGA 內(nèi)部加入少量的邏輯，用戶就能在 PROM 中存儲(chǔ)的多達(dá)四個(gè)不同的修訂版本之間進(jìn)行動(dòng)態(tài)切換。多重啟動(dòng)或從多個(gè)設(shè)計(jì)修訂進(jìn)行動(dòng)態(tài)重新配置的能力，與 Spartan™-3E FPGA 和第三方并行 flashPROM 一起使用時(shí)所提供的 MultiBoot 選項(xiàng)相似。本應(yīng)用指南將進(jìn)一步說明 Platform Flash PROM 如何提供附加選項(xiàng)來增強(qiáng)配置失敗時(shí)的安全性，以及如何減少引腳數(shù)量和板面積。此外，Platform Flash PROM 還為用戶提供其他優(yōu)勢：iMPACT 編程支持、單一供應(yīng)商解決方案、低成本板設(shè)計(jì)和更快速的配置加載。本應(yīng)用指南還詳細(xì)地介紹了一個(gè)包含 VHDL 源代碼的參考設(shè)計(jì)。
標(biāo)簽： Platform Flash XAPP PROM
上傳時(shí)間： 2013-10-10
上傳用戶：wangcehnglin
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