以AVR單片機ATmega8和USB接口器件PDIUSBD12為核心，基于標準的USB1.1協(xié)議，設計一種通用USB接口模塊，以滿足嵌入式系統(tǒng)中對USB接口的需求。對模塊的硬件電路或單片機固件程序的硬件接口層稍加修改即可用于其他各種微處理器。該模塊可為各種嵌入式系統(tǒng)增加USB接口,實現(xiàn)與USB主機系統(tǒng)通信。
Abstract:
Based on AVR microcontroller ATmega8 and USB interface chip PDIUSBD12, a general USB interface module is designed according to USB1.1 protocol for various requirements of embedded systems. Only with few modifications in circuit or hardware abstract layer of firmware, the module can be used on many types of microprocessors. All kinds of embedded systems can realize high speed and stable communication with USB host systems, owing to the facility of this module.
This version of dialog, formerly known as cdialog is based on the Debian package for dialog 0.9a (see CHANGES for recent modifications) 這是一個 unix 系統(tǒng)下的對話框管理程序， 你可以將該程序編譯后，直接使用。
硬件設計vhdl_cpu1,1. You may copy and distribute verbatim copies of this core, as long -- as this file, and the other associated files, remain intact and -- unmodified. modifications are outlined below.
3. Distribution of this core must be free of charge. Charging is -- allowed only for value added services. Value added services -- would include copying fees, modifications, customizations, and -- inclusion in other products.
系統(tǒng)下,地球坐標轉(zhuǎn)換的源代碼,在WGS-84坐標和北京54坐標之間的一套轉(zhuǎn)換參數(shù),可以全國通用的，在每個地方會不一樣，因為它們是兩個不同的橢球基準。 // WGS2GK.CPP : C++ version of Ottmar Labonde s WGSDHDN3.PAS with CPU time measurement // compile with MS Visual C++ version 6.0 or do the necessary modifications for your compiler // // Conversion of
Nucleus GRAFIX Porting Guide，本文檔包括Toolset Errors and Warnings 、
Display Device Initialization
Display Device Drivers、
Test Suite and Demo Program modifications
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The Stanford IBE library is a C implementation of the Boneh-Franklin
identity-based encryption scheme. (See Boneh and Franklin, "Identity-Based
Encryption from the Weil Pairing", CRYPTO 2001.)
There are a few modifications and additions. The Boneh-Franklin scheme is
used as a Key Encapsulation Mechanism, and off-the-shelf ciphers and HMACs
are used for the actual encryption. (See Lynn, "Authenticated Identity-Based
Encryption", available on eprint.
This library allows creating, modifying and extracting zip archives in the compatible way with PKZIP (2.5 and higher) and WinZip. Supported are all possible operations on the zip archive: creating, extracting, adding, deleting files from the archive, modifications of the existing archive. There is also the support for creating and extracting multiple disk archives (on non-removable devices as well) and for password encryption and decryption. This module uses compression and decompression functions from zlib library by Jean-loup Gailly and Mark Adler.
