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Verilog Programming Language Interface Primer: 09/02/99 EDN Design Ideas / (added 1/05) [EDITOR'S NOTE:
This article makes reference to six code listings. You may view them individually below, or download a single Zip file containing all the listings .] Designers have employed HDLs for more than
a decade, using them to replace a schematic-based design methodology and to convey design ideas. Verilog and VHDL are the two most widely used HDLs for electronics design.... |
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VG Converter for Video Projectors and Fixed Frequency Monitors: (design circuit added 8/02) |
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VG Generator: that displays an image in the XS Board RAM on a VGA monitor. (added 4/02) |
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VG to TV Converter: (design circuit added 8/02) |
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VGA Converter for Video Projectors and Fixed Frequency Monitors: (electronic (schematic / circuit added 11/05) |
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VGA Hardware Screen Blanker: It is a simple device that connects between your keyboard and VGA card feature connector, and
will blank (or blink) the screen after a certain amount of non-keyboard activity. This device is totally software and O/S independent. The ONLY screen blanker that can be guaranteed to work
!.... (added 11/05) nov 05 |
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VGA to TV Converter: (electronic (schematic / circuit added 11/05) |
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Video Amplifier Design for Computer Monitors: National Semiconductor Application Note (app note added 2/06) |
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Video Switch in Video Pixel-Rate Switch Application: PI5V330: Pericom Semiconductor Application Brief # 009 (app note added
02/05) |
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Visor Cradle Serial Interface: (electronic circuit added 4/05) |
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Visual Basic MDAC Offset: 02/18/99 EDN-Design Ideas / (added 5/03) It's hard to imagine that, for such an old-hat item as a
standard R-2R multiplying DAC (MDAC), there still exists some "dark area" in modeling and calculating its dc offset, VOFF, and related output resistance, RO. You can obtain some information
from References 1and 2 and other references regarding the code dependency of RO and VO, but the simplified formulas given therein are insufficient for thorough engineering analysis/design and
computer modeling/simulation. Moreover, these.... |
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VXI Switching Application Note (5968-7234): Aligent Application Note (added 2/06) |
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Where is the Wiper?: 08/08/02 EDN Design Ideas / (added 1/05) You enjoy significant advantages when using
DPPs (digitally programmable potentiometers) with increment/decrement serial interfaces. Programming the serial interface is simple and fast, and you can adjust the potentiometer in real-time
applications. The interface, however, provides no information about wiper position, and this information is important in some applications.... |
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Wide Bus Applications using Parallel BLVDS Serdes Devices: National Semiconductor Application Note (app note
added 2/06) |
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Wire between Multiio Card and Joystick Connector: (schematic / circuit (added (6/03) |
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Wireless Local Network for Palmpilot (Large PDF): (electronic circuit added 4/05) |
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Wireless Radio Data Link: This is a description of a very simple unit designed and constructed for use as a wireless data
connection between two nearby computers. The error rate is excellent over short runs, and the transmission speed means that a useful PPP link can be established between the machines. Which
are, of course, running Linux..... (added 4/05) |
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Xsboard Parallel Port Interface: that is programmed into the CPLD. (added 4/02) |
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XSPIII Cable Interface: that configures the CPLD so it emulates a Xilinx Parallel Cable III interface. This allows you to
use the WebPACK programming tools through the simple XESS downloading cable. (added 10/06) |
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XY Keypad uses µC's Serial Port: 10/10/96 EDN-Design Ideas / (added 5/03) |
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Zero Power A/D Converter uses Printer Port: 07/06/95 EDN-Design Ideas / (added 6/06) You can use a desktop or laptop PC to
monitor physical variables such as temperature or pressure. A convenient way to do this is to connect an A/D converter through the ubiquitous Centronics printer port (Fig 1). The current
requirement of the ADC0804LCN used here is less than 1.5 mA at 5V supply voltage with a 640-kHz clock. Tristate-buffer 74HC244 multiplexes 8 bits of A/D-converter data through 4 bits (54
through 57) of the status port of the printer adapter.... |
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Zobel Network Tames Reactive Loads: 12/21/95 EDN-Design Ideas / (added 11/05) |
