This document provides guidelines for integrating a discrete high speed USB host controller onto a fourlayer desktop motherboard. The material covered can be broken into three main categories: board design guidelines, EMI/ESD guidelines and front panel USB guidelines. Section 1.1 Background provides an explanation of the routing experiments and testing performed to validate the feasibility of 480 Megabits per second on an actual motherboard. Section 7 contains a design checklist that lists each design recommendation described in this document. High speed USB operation is described in the USB 2.0 Specification (http://www.usb.org/developers/docs.html).
標簽： integrating controller guidelines document
上傳時間： 2015-11-18
上傳用戶：xhz1993
The latest release, ver 1.16 of the ARM (7TDMI, 720T, 920T) port for uC/OS-II V2.61 (and higher) includes ports for the following platforms: 1. S3c2410x ( ARM920T from Samsung ) on SMDK2410 eval board. 2. LPC2xxx - LPC210x & LPC213x ( ARM7TDMI-S from Philips ) on IAR s Kickstart & OLIMEX boards. 3. EP7312 ( ARM720T from CIRRUS ) on CDK238 eval board. Should also work on boards based on the CS89712. Tool-chains: GCC 3.3.2, ADS 1.2 & SDT 2.51. Op-modes: Pure ARM & ARM-THUMB interworked. Endianess: Big endian & Little endian modes
標簽： release latest higher OS-II
上傳時間： 2014-01-26
上傳用戶：小眼睛LSL
12864中文字庫液晶演示程序 MS12864R 測試程序(串口) 連線表 CPU=89C52 SystemClock=12Mhz CS=P3.0 SCLK=P3.1 SID=P3.2 Reset=RC in board
標簽： 12864 SystemClock 12864R SCLK
上傳時間： 2015-11-29
上傳用戶：yt1993410
Cypress Semiconductor makes a variety of PLL-based clock generators. This application note provides a set of recommendations to optimize usage of Cypress clock devices in a system. The application note begins with recommended termination techniques for clock generators. Subsequently, power supply filtering and bypassing is discussed. Finally, the application note provides some recommendations on board layout.
標簽： Semiconductor application generators PLL-based
上傳時間： 2013-12-20
上傳用戶：水中浮云
TI DSP2812 can總線程序,可以用這個程序設計can總線收發數據,已經在自己的開發板上測試過,運行良好-TI DSP2812 the can main line procedure, may use this programming can main line receiving and dispatching data, has already tested on own development board, the movement is good
上傳時間： 2015-12-03
上傳用戶：ls530720646
In a preemptive priority based RTOS, priority inversion problem is among the major sources of deadline violations. Priority inheritance protocol is one of the approaches to reduce priority inversion. Unfortunately, RTOS like uC/OS can’t support priority inheritance protocol since it does not allow kernel to have multiple tasks at the same priority. Although it has different ways to avoid priority inversion such as priority ceiling protocol, developers still have some difficulties in programming real time applications with it. In this paper, we redesign the uC/OS kernel to provide the ability to support round robin scheduling and implement priority inheritance semaphore on the modified kernel. As result, we port new kernel with priority inheritance semaphore to evaluation board, and evaluate the execution time of each of the kernel service as well as verify the operations of our implementation.
標簽： priority preemptive inversion problem
上傳時間： 2015-12-14
上傳用戶：氣溫達上千萬的
#if !defined(AFX_GAQUEEN_H__C26AE0A3_F9B4_426F_A324_B460CC7946CB__INCLUDED_) #define AFX_GAQUEEN_H__C26AE0A3_F9B4_426F_A324_B460CC7946CB__INCLUDED_ #if _MSC_VER > 1000 #pragma once #endif // _MSC_VER > 1000 class CGAQueen { public: CGAQueen(int nPopulation,int nIteration,float Mutation,int mChboard) virtual ~CGAQueen() void Clear() // to clear chess board with 0 value void InitialPopulation() // to create the first and initial randompopulation void FillArea(int index) // to fill chess board with desired chromosome int CostFunc(int index) // determine the cost of matrix[index][index] void PopulationSort() // to sort population from the best to the worst void GenerateCrossOverMatrix() // a way to create children from parent is CcrossOver void Mating() // to create children from parents void Ap
標簽： AFX_GAQUEEN_H INCLUDED defined define
上傳時間： 2015-12-27
上傳用戶：wuyuying
This directory contains example ADSPBF535 code, written in assembly, that changes the frequency and voltage using the push button switches on the board.
標簽： directory frequency contains assembly
上傳時間： 2014-01-03
上傳用戶：evil
This a naive implementation of BOOTP/TFTPBOOT, the protocols to use to bootstrap a computer through a TCP/IP network. The goal was to design a small footprint implementation to allow the code to be integrated into a monitor program stored in a ROM/FLASH, the footprint is about 7 KBytes for the test program. This code has not been yet tested in many environment. It should be seen at your starting point to integrate the network boot function to your board.
標簽： implementation bootstrap protocols TFTPBOOT
上傳時間： 2013-12-18
上傳用戶：極客
This code implements the shortest path algorithm via the simple scheme and fibonacci heap data structure. It has 3 kinds of testing data input method : random input by computer, reading from the file, reading from the key board.
標簽： implements algorithm fibonacci the
上傳時間： 2013-12-23
上傳用戶：ynzfm
