This project provides a general Purpose library which implements read and write support for MMC, SD and SDHC memory cards. Written in ANSI C portable for several Microcontrollers.
MicroC/OS-II
The Real-Time Kernel
Second Edition
By Jean J. Labrosse
CMP Books, CMP Media LLC
Copyright 2002 by CMP Books
ISBN 1-57820-103-9
CMP Books
CMP Media LLC
1601 West 23rd Street, Suite 200
Lawrence, Kansas 66046
785-841-1631
www.cmpbooks.com
email: books@cmp.com
The programs and applications on this disk have been carefully tested, but are
not guaranteed for any particular Purpose. The publisher does not offer any
warranties and does not guarantee the accuracy, adequacy, or completeness of any
information and is not responsible for any errors or omissions or the results
obtained from use of such information.
■ High Performance, Low Power AVR? 8-Bit Microcontroller
■ Advanced RISC Architecture
–120 Powerful Instructions – Most Single
Clock Cycle Execution
–32 x 8 General Purpose Working Registers
–Fully Static Operation
The Purpose of this application note is to show an example of how a digital potentiometer can be used in thefeedback loop of a step-up DC-DC converter to provide calibration and/or adjustment of the output voltage.The example circuit uses a MAX5025 step-up DC-DC converter (capable of generating up to 36V,120mWmax) in conjunction with a DS1845, 256 position, NV digital potentiometer. For this example, the desiredoutput voltage is 32V, which is generated from an input supply of 5V. The output voltage can be adjusted in35mV increments (near 32V) and span a range wide enough to account for resistance, potentiometer and DCDCconverter tolerances (27.6V to 36.7V).
Digital-to-analog converters (DACs) are prevalent inindustrial control and automated test applications.General-Purpose automated test equipment often requiresmany channels of precisely controlled voltagesthat span several voltage ranges. The LTC2704 is ahighly integrated 16-bit, 4-channel DAC for high-endapplications. It has a wide range of features designed toincrease performance and simplify design.
Linear Technology’s High Frequency Product lineupincludes a variety of RF I/Q modulators. The Purpose ofthis application note is to illustrate the circuits requiredto interface these modulators with several popular D/Aconverters. Such circuits typically are required to maximizethe voltage transfer from the DAC to the baseband inputsof the modulator, as well as provide some reconstructionfi ltering.
PCI ExpressTM Architecture
Add-in Card Compliance Checklist for the PCI Express Base 1.0a SpecificationThe PCI Special Interest Group disclaims all warranties and liability for the use of this document and the information contained herein and assumes no responsibility for any errors that may appear in this document, nor does the PCI Special Interest Group make a commitment to update the information contained herein.Contact the PCI Special Interest Group office to obtain the latest revision of this checklistQuestions regarding the ths document or membership in the PCI Special Interest Group may be forwarded tPCI Special Interest Group5440 SW Westgate Drive #217Portland, OR 97221Phone: 503-291-2569Fax: 503-297-1090 DISCLAIMERThis document is provided "as is" with no warranties whatsoever, including any warranty of merchantability, noninfringement, fitness for any particular Purpose, or any warranty otherwise arising out of any proposal, specification, or sample. The PCI SIG disclaims all liability for infringement of proprietary rights, relating to use of information in this specification. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted herein.
PCI ExpressTM is the third generation of PCI (PeripheralComponent Interconnect) technology used to connect I/Operhipheral devices in computer systems. It is intended asa general Purpose I/O device interconnect that meets theneeds of a wide variety of computing platforms such asdesktop, mobile, server and communications. It alsospecifies the electrical and mechanical attributes of thebackplane, connectors and removable cards in thesesystems.
