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Description: 这是一个用89S52加PDIUSBD12模拟的一个U盘，里面涉及到USB接口，USB大容量存储设备，FAT16文件系统等内容。插入电脑后，可显示移动磁盘盘符及一个文本文件。
需要说明一下的是，这个包中的原理图，IDE接口部分、74HC573、以及RS232串口等部分，是作为这个实验板的一部分。在这个模拟U盘的程序中，是没有用到的。在下一个“移动硬盘”的例子中，就用到了IDE接口跟74HC573了。至于RS232，那时笔者在调试程序时用的。如果您不需要通过串口调试程序，RS232部分可以不管它。-This an increase PDIUSBD12 89S52 use of a simulation-U, they relate to the USB interface, USB mass storage devices, the FAT16 file system information. Insert a computer and can show that the mobile disk drive and a text file. The need to explain is that the package of schematics, IDE interface, 74HC573. RS232 serial port and other part of the experiment as part of the plate. In the U-simulation process is not to use the. Next a "mobile hard disk" examples, it uses an IDE interface with the 74HC573. For RS232, then the author debugging procedures used. If you do not need serial debugging procedures, RS232 can be part of it regardless.
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Size: 263909 |
Author: Computer00 |
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Description: 89S52加USBD12模拟的一个U盘（源码+原理图+实物照片）
Computer00 发表于 2006-3-3 14:09:00
USB-D12文件包下载.rar
这是一个用89S52加PDIUSBD12模拟的一个U盘，里面涉及到USB接口，USB大容量存储设备，FAT16文件系统等内容。插入电脑后，可显示移动磁盘盘符及一个文本文件。
需要说明一下的是，这个包中的原理图，IDE接口部分、74HC573、以及RS232串口等部分，是作为这个实验板的一部分。在这个模拟U盘的程序中，是没有用到的。在下一个“移动硬盘”的例子中，就用到了IDE接口跟74HC573了。至于RS232，那时笔者在调试程序时用的。如果您不需要通过串口调试程序，RS232部分可以不管它-89S52 increase USBD12 simulation of a U-Disk (OSS diagram kind photos) Comput. er00 published in 2006-3-3 14:09 : 00 USB-D12 package downloaded. rar This is a plus with 89S52 simulation PDIUSBD12 of a U disk, which relate to the USB interface, USB mass storage devices, and FAT16 file system and so forth. Insert the computer, can show that the mobile disk drive and a text file. Need to point out that this is a package of drawings, IDE interface, 74HC573. and RS232 serial port as part of the experiment as part of the plate. In this simulation U disk process is not used in the. Next a "mobile hard" cases, the option of the IDE interface with the HC573 74. For RS232, then the writer debugging procedures used. If you do not need serial debugging procedures, RS232 can be part of it reg
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Size: 265127 |
Author: zj0517 |
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Description: YAFFS/YAFFS2是效果很理想的NAND Flash上的文件系统，是专门为NAND Flash设计的嵌入式文件系统，适用于大容量的存储设备。-YAFFS/YAFFS2 effect is very ideal of NAND Flash File System. is dedicated to NAND Flash design of embedded file system, as applied to large-capacity storage devices.
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Size: 113286 |
Author: cheng xun |
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Description: 该设备是一款基于AVR mega16L单片机的电子书阅读器，它除具有传统的阅读电子资源功能外，还能通过PS2接口与PC键盘连接，使用普通PC键盘输入信息，进行文本录入；使用LCD12864液晶作为显示器，它还可以用VB专门为之编写的下载软件通过串口下载TXT格式的文本资源。电子书资源存储在AVR公司生产的AT45DB021B闪速存储器，它有2M存储空间，可满足一般用户需要，当然也可升级为大容量存储器。
该设备功能强大，将电子书阅读器发挥到了极致，能满足用户特殊需要。
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Size: 112648 |
Author: 魏昊 |
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Description: 此为操作系统实验报告： scan,cscan算法模拟磁盘调度 内含：程序流程图 设计思路 主要源码等等。 简介：磁盘是一种高速、大容量、旋转型、可直接存取的存储设备。它作为计算机系统的辅助存储器，担负着繁重的输入输出任务、在多道程序设计系统中，往往同时会有若干个要求访问磁盘的输入输出请求等待处理。系统可采用一种策略，尽可能按最佳次序执行要求访问磁盘的诸输入输出请求。-operating system for this experiment : scan, cscan scheduling algorithm simulation disk containing : flowchart design major source so on. Description : disk is a high-speed, high-capacity, rotating type, direct access storage devices. As computer systems support memory, shoulders the heavy task of input and output, multiple procedures in the system design, while there are often a number of requests to visit disk input and output requests pending.
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Size: 6832 |
Author: 何浩 |
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Description: usb大容量设备相关协议，其中包括
usb2.0
Mass Storage Devices
Mass Storage Overview
USB 大容量储存器驱动器协议 UFI（英文版）
usb_masstorage_class_specification.2
usbmassbulk_10
usbmassover_11
usbmass-ufi10
CBI-Transport
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Size: 6399140 |
Author: yunyixiao |
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Description: 本程序将以Philips公司的USB控制器PDIUSBD12和Sumsung公司的内存（Flash）K9F5608U0A为例，介绍开发大容量存储设备的方法。-Philips USB controller PDIUSBD12 eyewear company and the memory (Flash) K9F5608U0A as an example, the development of large capacity storage devices.
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Size: 18432 |
Author: 蔡明 |
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Description: 此为操作系统实验报告： scan,cscan算法模拟磁盘调度 内含：程序流程图 设计思路 主要源码等等。 简介：磁盘是一种高速、大容量、旋转型、可直接存取的存储设备。它作为计算机系统的辅助存储器，担负着繁重的输入输出任务、在多道程序设计系统中，往往同时会有若干个要求访问磁盘的输入输出请求等待处理。系统可采用一种策略，尽可能按最佳次序执行要求访问磁盘的诸输入输出请求。-operating system for this experiment : scan, cscan scheduling algorithm simulation disk containing : flowchart design major source so on. Description : disk is a high-speed, high-capacity, rotating type, direct access storage devices. As computer systems support memory, shoulders the heavy task of input and output, multiple procedures in the system design, while there are often a number of requests to visit disk input and output requests pending.
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Size: 6144 |
Author: 何浩 |
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Description: YAFFS/YAFFS2是效果很理想的NAND Flash上的文件系统，是专门为NAND Flash设计的嵌入式文件系统，适用于大容量的存储设备。-YAFFS/YAFFS2 effect is very ideal of NAND Flash File System. is dedicated to NAND Flash design of embedded file system, as applied to large-capacity storage devices.
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Size: 113664 |
Author: cheng xun |
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Description: 该设备是一款基于AVR mega16L单片机的电子书阅读器，它除具有传统的阅读电子资源功能外，还能通过PS2接口与PC键盘连接，使用普通PC键盘输入信息，进行文本录入；使用LCD12864液晶作为显示器，它还可以用VB专门为之编写的下载软件通过串口下载TXT格式的文本资源。电子书资源存储在AVR公司生产的AT45DB021B闪速存储器，它有2M存储空间，可满足一般用户需要，当然也可升级为大容量存储器。
该设备功能强大，将电子书阅读器发挥到了极致，能满足用户特殊需要。
-The device is a single chip based on the AVR mega16L e-book reader, which in addition to the traditional functions of reading electronic resources, but also through the PS2 interface to connect with the PC keyboard, use an ordinary PC keyboard input information, the text input use LCD12864 LCD as a display, it can be prepared by specialized VB download software through the serial port to download TXT format text resources. E-book resources are stored in the AVR produced AT45DB021B flash memory, it has 2M storage space to meet the needs of general users, of course, can also be upgraded to a large-capacity memory. The device is powerful and will play an eBook reader to the extreme, and to meet the special needs of users.
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Size: 112640 |
Author: 魏昊 |
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Description: yaffs文件系统源码，YAFFS是第一个专门为NAND Flash存储器设计的嵌入式文件系统，适用于大容量的存储设备；并且是在GPL（General Public License）协议下发布的-yaffs file system source code, YAFFS is the first specifically for NAND Flash memory design for embedded file system for large-capacity storage devices and are in the GPL (General Public License) issued under the Protocol
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Size: 172032 |
Author: zgh |
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Description: 本设计使用ARM2138开发板作为主控制模块，利用简单的外围电路来驱动16*64的点阵LED显示屏。利用ARM本身强大的功能和大容量的内部存储，可以很方便的实现ARM与PC机和SD卡等外围存储设备的数据传输，并能利用软件方便的进行显示内容的多样变化，另一方面点阵显示屏广泛的应用于医院、机场、银行等公共场所，所以本设计具有很强的现实应用性。-Designed to use the ARM2138 development board as the main control module, using simple external circuit to drive the 16* 64 dot matrix LED display. ARM itself using powerful features and high-capacity internal storage, can easily achieve the ARM with the PC and peripherals such as SD card data storage devices, and can use software to facilitate the display of diverse content changes, on the other hand, points matrix display used in a wide range of hospital, airports, banks and other public places, so the design of practical application.
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Size: 331776 |
Author: guolei |
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Description: STM32XXXX usb从设备和住设备的应用源代码，包括大容量存储器U盘的设计方案-STM32XXXX usb devices from the equipment and live in the source code of applications, including large-capacity memory U disk design
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Size: 1259520 |
Author: sam |
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Description: FAT16的单片机裸奔分区，适用于SD卡等大容量的存储设备上面-FAT16 partition裸奔microcontroller for high-capacity SD card storage devices
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Size: 129024 |
Author: 程海涛 |
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Description: 控制台下的USB大容量存储设备的简单遍历，可以获取VID和PID，及设备路径等，整合了DDK下需要的库和.h，可以作为学习USB简单驱动编写的参考！-Console under the USB mass storage devices of a simple traversal, you can obtain the VID and PID, and equipment, such as the path to integrate the needs of the DDK and the Treasury. H, can be used as a simple USB driver to learn the preparation of reference!
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Size: 74752 |
Author: sck007 |
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Description: 磁盘是高速、大容量、旋转型、可直接存取的存储设备。它作为计算机系统的辅助存储器，担负着繁重的输入输出工作，在现代计算机系统中往往同时会有若干个要求访问磁盘的输入输出要求。系统可采用一种策略，尽可能按最佳次序执行访问磁盘的请求。由于磁盘访问时间主要受寻道时间T的影响，为此需要采用合适的寻道算法，以降低寻道时间。本实验要求学生模拟设计一个磁盘调度程序，观察调度程序的动态运行过程。通过实验让学生理解和掌握磁盘调度的职能。-Disk is the high-speed, large capacity, rotating, direct access storage device. As a secondary computer system memory, to carry out heavy work input and output in modern computer systems often also have a number of requests to access the disk input and output requirements. System can use a strategy, as far as possible the best order of implementation of the disk access requests. As the disk access time is mainly affected by the impact of seek time T, which requires use of appropriate seeking algorithms to reduce the seek time. This experiment requires students to design a disk scheduling simulation program, observe the dynamic process scheduler. Experiments for students to understand and grasp the disk scheduling functions.
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Size: 234496 |
Author: zsb |
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Description: sd卡是小型大容量设备对于sd卡的访问需要遵从sd协议，资料是基于英文版sd协议翻译而来-sd card is a small high-capacity equipment to access the sd card, sd need to comply with the agreement, the agreement information is based on the English version translated from sd
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Size: 2661376 |
Author: jhon |
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Description: 因而，SDRAM常作为数据缓存应用于高速数据传输系统中。目前，许多嵌入式设备的大容量、高速度存储器都采用SDRAM来实现，而且大多都是用专用芯片完成其控制电路，这不但提高了设计成本，而且使系统的硬件电路变得复杂。随着FPGA在嵌入式系统中的广泛应用，如果我们能够结合具体的需要，利用FPGA来设计自己的SDRAM控制器，这些问题就迎刃而解了-During University I studied computer networks have some knowledge about computers, I seriously can bear hardships and stand hard work, self-motivated. After engaging in the service industry so I have learned patience, tolerance and self-control. What a year of sales experience I learned how to communicate with people, as well as self-learning. I am a person of honor and promised to do certain things other people do. Into action to appreciate the language of the people, hate the language into action.
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Size: 75776 |
Author: 宁欣 |
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Description: STM32芯片中USB通信的代码，实现大容量存储设备功能，也适合自定义USB协议开发时借鉴，使用IAR开发平台-USB develop for STM32
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Size: 552960 |
Author: thinkbird |
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Description: 本源码是基于S3C—6430的ARM11嵌入式开发板的NAND FLASH程序的编写。NAND写回速度快、芯片面积小，特别是大容量使其优势明显。页是NAND中的基本存贮单元，一页一般为512 B(也有2 kB每页的large page NAND FLASH)，多个页面组成块。不同存储器内的块内页面数不尽相同，通常以16页或32页比较常见。块容量计算公式比较简单，就是页面容量与块内页面数的乘积。根据FLASH Memory容量大小，不同存储器中的块、页大小可能不同，块内页面数也不同。例如：8 MB存储器，页大小常为512 B、块大小为8 kB，块内页面数为16。而2 MB的存储器的页大小为256 B、块大小为4 kB，块内页面数也是16。NAND存储器由多个块串行排列组成。实际上，NAND型的FLASHMemory可认为是顺序读取的设备，他仅用8 b的I/O端口就可以存取按页为单位的数据。NAND在读和擦写文件、特别是连续的大文件时，速度相当快。-NAND write-back speed, small chip area, especially the large capacity make it obvious advantages. Page in the NAND storage unit, a general 512 B, (also have 2 kB per page large page NAND FLASH), multiple page composition. Number of pages within the memory block is different, usually more common 16 or 32. Block capacity formula is relatively simple, is the product of the page capacity and number of pages in the block. FLASH Memory size memory block, the page size may be different, the number of pages in the block. For example: 8 MB of memory, the page size is often 512 B, the block size of 8 kB, the number of pages in the block 16. The page size of 2 MB of memory, 256 B, the block size is 4 kB block, number of pages is 16. NAND memory by more than one block of the serial arrangement. In fact, NAND FLASHMemory can be considered to be the order of read devices, he took only 8-b I/O ports can access the data by page. NAND read and erase files, especially consecutive large files very fast.
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Size: 3072 |
Author: wangan |
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