Description: SD卡规格书第五章，SPI总线协议。描述了控制器和SD卡之间用SPI总线相互握手及通信的方法。-SD Card Specification Chapter V, SPI bus protocol. Described between the controller and the SD card using SPI bus to shake hands with each other and communication methods. Platform: |
Size: 1436672 |
Author:叶子 |
Hits:
Description: SD card controller can just read data using 1 bit SD mode.
I have written this core for NIOS2 CPU, Cyclone, but I think it can works
with other FPGA or CPLD. Better case for this core is SD clock = 20 MHz and
CPU clock = 100 MHz (or in the ratio 1:5). If you have a wish you can achieve this core.
Good luck-SD card controller can just read data using 1 bit SD mode.I have written this core for NIOS2 CPU, Cyclone, but I think it can workswith other FPGA or CPLD. Better case for this core is SD clock = 20 MHz andCPU clock = 100 MHz (or in the ratio 1:5). If you have a wish you can achieve this core.Good luck Platform: |
Size: 8192 |
Author:tuya |
Hits:
Description: This SPI-mode SD Card controller is a free SOPC Builder component that can be used in any SOPC Builder system. The included example design runs on the Nios II Embedded Evaluation Kit, Cyclone III edition (NEEK).-This SPI-mode SD Card controller is a free SOPC Builder component that can be used in any SOPC Builder system. The included example design runs on the Nios II Embedded Evaluation Kit, Cyclone III edition (NEEK).
Platform: |
Size: 2167808 |
Author:zhangdongqing |
Hits:
Description: This SPI-mode SD Card controller is a free SOPC Builder component that can be used in any SOPC Builder system. The included example design runs on the Nios II Embedded Evaluation Kit, Cyclone III edition (NEEK).-This SPI-mode SD Card controller is a free SOPC Builder component that can be used in any SOPC Builder system. The included example design runs on the Nios II Embedded Evaluation Kit, Cyclone III edition (NEEK).
Platform: |
Size: 96256 |
Author:zhangdongqing |
Hits:
Description: SD卡控制器IP. 兼容SD卡协议2.0。与wishbone bus 接口，方便与其他IP连接使用。 -SD Card Controller IP. Compatible with SD Card Agreement 2.0. With the wishbone bus interface to facilitate the use of other IP connections. Platform: |
Size: 24576 |
Author:xiafei |
Hits:
Description: 该代码，只用了硬件描述语言Verilog在完成对SD卡控制器的编写，经济实用-The code, only the hardware description language Verilog in the completion of the SD card controller to prepare, economical and practical Platform: |
Size: 24576 |
Author:宋宜良 |
Hits:
Description: 在手持式设备的应用中(包括智能电话、相机和 MP3 播放器)，用户大多考虑低功耗、
小尺寸，整个系统中除了处理器外，往往需要提供多种通信接口与存储器接口，用于实现对
硬盘、SD 卡、CF 卡以及 USB 的通信等，用 FPGA 来实现这些接口将会是一种理想的解决
方案。本方案采用 Actel 低功耗的 IGLOO 系列作为处理器(PXA270 或 ARM)的桥接器件和
设备控制器，不仅能够大大简化处理器设计的复杂度，而且 IGLOO 的超低功耗 (最小 5μ
W)以及超小封装(4mm*4mm)给手持式产品带来了前所未有的。 -In the application of handheld devices (including smart phone, camera and MP3 players), users are considering low-power,
Small size, the whole system in addition to the processor, usually need to provide various communication interface and storage interface, used to implement
Hard disk, SD card, CF card and USB communication, etc, to realize these interfaces with FPGA will be an ideal solution
Scheme. The scheme adopts Actel IGLOO of low power consumption PXA270 processor (series as a bridge or ARM) devices and
Equipment controller, can not only greatly simplified, and the complexity of the processor design IGLOO of low power consumption (minimum 5 mu
W) and small package (4mm 4mm*) for handheld product has brought an unprecedented. Platform: |
Size: 242688 |
Author:zxx359654879 |
Hits:
Description: SD卡有两个可选的通讯协议：SD模式和SPI模式。SD模式是SD卡标准的读写方式，但是在选用SD模式时，往往需要选择带有SD卡控制器接口的MCU，或者必须加入额外的SD卡控制单元以支持SD卡的读写。然而，AT89C52单片机没有集成SD卡控制器接口，若选用SD模式通讯就无形中增加了产品的硬件成本。在SD卡数据读写时间要求不是很严格的情况下，选用SPI模式可以说是一种最佳的解决方案。因为在SPI模式下，通过四条线就可以完成所有的数据交换，并且目前市场上很多MCU都集成有现成的SPI接口电路，采用SPI模式对SD卡进行读写操作可大大简化硬件电路的设计。-There are two optional SD card communication protocols: SD mode and SPI mode. SD model is a standard SD card reading and writing, but in the selection of SD mode, often need to select the SD card controller interface with MCU, or SD card to join the additional control unit to support the SD card reader. However, AT89C52 microcontroller is not integrated SD card controller interface to SD mode if the selected communication would in effect increase the cost of hardware products. The time to read and write data in SD card is not very demanding circumstances, the use SPI mode can say is the best solution. SPI, mode because, by four lines on all the data can be exchanged, and Du Mu Qian Ji Cheng MCU market, there are many existing SPI interface circuit using SPI mode on the SD card reader can be greatly Jianhua Cao Zuo hardware design. Platform: |
Size: 35840 |
Author: |
Hits:
Description: SD卡在现在的日常生活与工作中使用非常广泛，时下已经成为最为通用的数据存储卡。在诸如MP3、数码相机等设备上也都采用SD卡作为其存储设备。SD卡之所以得到如此广泛的使用，是因为它价格低廉、存储容量大、使用方便、通用性与安全性强等优点。既然它有着这么多优点，那么如果将它加入到单片机应用开发系统中来，将使系统变得更加出色。这就要求对SD卡的硬件与读写时序进行研究。对于SD卡的硬件结构，在官方的文档上有很详细的介绍，如SD卡内的存储器结构、存储单元组织方式等内容。要实现对它的读写，最核心的是它的时序，笔者在经过了实际的测试后，使用51单片机成功实现了对SD卡的扇区读写，并对其读写速度进行了评估。-There are two optional SD card communication protocols: SD mode and SPI mode. SD model is a standard SD card reading and writing, but in the selection of SD mode, often need to select the SD card controller interface with MCU, or SD card to join the additional control unit to support the SD card reader. However, AT89C52 microcontroller is not integrated SD card controller interface to SD mode if the selected communication would in effect increase the cost of hardware products. The time to read and write data in SD card is not very demanding circumstances, the use SPI mode can say is the best solution. SPI, mode because, by four lines on all the data can be exchanged, and Du Mu Qian Ji Cheng MCU market, there are many existing SPI interface circuit using SPI mode on the SD card reader can be greatly Jianhua Cao Zuo hardware design. Platform: |
Size: 54272 |
Author: |
Hits:
Description: MMC/SD卡工作原理及关键命令和结构信息
S3C2410中MMC/SD Host控制器分析等-MMC/SD card and the key principle of command and structure information in S3C2410 MMC/SD Host Controller analysis Platform: |
Size: 4239360 |
Author:ly |
Hits:
Description: 本控制器适用于控制LED全彩发光字、LED全彩数码灯管、LED全彩幕墙灯、LED全彩点光源及小型LED脱机静态显示屏。采用大容量SD卡存储花样数据,读取文件的方式播放花样,其存储的花样帧数由SD卡的容量决定,操作简单方便。播放文件由电脑软件生成，只需将生成的文件复制到SD卡中即可播放。单口最大可控制1024全彩像素点，每种颜色最大可实现256级灰度显示。通过按键拨码可选择花样列表中的前16个花样单独播放，8级播放速度。多台控制器可通过同步信号线由其中的一台控制同步播放或通过LED同步主控器来控制。-Controller for controlling the full-color LED luminous characters, LED full color digital tube, LED full-color wall lights, LED full color LED light source and a small static display offline. Using large-capacity SD card to store pattern data, read the papers play pattern, the pattern stored in the number of frames determined by the capacity of SD card is easy and simple. Play the file generated by the computer software, simply copy the generated files in the SD card to play. 1024 single port can control the largest full-color pixel, the maximum of each color display with 256 levels of gray. DIP pattern through the button in the list select the first 16 tricks playing alone, eight playback speed. More than one controller can be synchronized signal line control by one of a simultaneous broadcast or through a synchronous master to control the LED.
Platform: |
Size: 565248 |
Author:yu |
Hits:
Description: SD Card的verilog模拟模型，可以配合开发SD Controller使用-SD Card the verilog simulation model can be used with the development of SD Controller Platform: |
Size: 5120 |
Author:Lee Josh |
Hits:
Description: The "sd card controller" is a Secure Digital Card Host Controller, which main focus is to provide fast and simple interface to SD/SDHC cards. One of the main goal with this project is that the controller should be usable as a system disk contain a file system. Therefore the core has been developed with features a system with operative system will benefit from. The design also include a simplified model of a SD-card to test against. Platform: |
Size: 2286592 |
Author:zhong |
Hits:
Search - sd card controller