The Experts below are selected from a list of 9501 Experts worldwide ranked by ideXlab platform
Skom. Luyung Dinaini - One of the best experts on this subject based on the ideXlab platform.
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USE OF Parallel Port AND IC 8255 AS SAFETY HOUSE
2010Co-Authors: Arief Cahyono, Skom. Luyung DinainiAbstract:In a series of Parallel Port utilization and IC 8255 as a safety house consists of three main blocks include: Personal Computers, PPI 8255, lamp indicator. On the use of Parallel Port to be controlled by IC 8255 from a software program, which is software that contains the control word is sent by the CPU to the IC 8255. in each control block receives commands from the signal read / write and "Control Word". where the use of Parallel Port is used as output Ports A, B and C are used as inputs are used as output, so lower PPI8255 can work on the mode 0. except on the easiest mode, it has no signal source prokol for one or the other two modes. In 8255 LPT circuit requires power supply +5 V / 200mA. The power supply can be got from outside the circuit or by tapping the power supply +5 V from the computer. on the use of resistors in the circuit Rp3 it's useful to keep the data bus = 0. while for the capacitor C5 and C6 serve to secure the WR and RD from the noise.
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Study on the Design of Control Through Seven Segment Parallel Port
Computer Engineering, 2004Co-Authors: Hardiyan Hardiyan, Skom. Luyung DinainiAbstract:Utilization through the Parallel Port interface can help the computer in supPorting the process of transferring data linking with other peripherals such as seven-segment. With a seven-segment control, can display the meter reading or digital data that is controlled seven-segment on Digital To Analog Converter (DAC). Views process scanning process can use. It would be more effective and efficient Port is used for transferring data within a range of doing that is not too green. it is also more cost-effective compared with the manufacture of Programmable Peripheral Interface Card Interface 8255.
Hardiyan Hardiyan - One of the best experts on this subject based on the ideXlab platform.
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Study on the Design of Control Through Seven Segment Parallel Port
Computer Engineering, 2004Co-Authors: Hardiyan Hardiyan, Skom. Luyung DinainiAbstract:Utilization through the Parallel Port interface can help the computer in supPorting the process of transferring data linking with other peripherals such as seven-segment. With a seven-segment control, can display the meter reading or digital data that is controlled seven-segment on Digital To Analog Converter (DAC). Views process scanning process can use. It would be more effective and efficient Port is used for transferring data within a range of doing that is not too green. it is also more cost-effective compared with the manufacture of Programmable Peripheral Interface Card Interface 8255.
Christoph Stahl - One of the best experts on this subject based on the ideXlab platform.
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How to make your own response boxes: A step-by-step guide for the construction of reliable and inexpensive Parallel-Port response pads from computer mice
Behavior Research Methods, 2007Co-Authors: Andreas Voss, Rainer Leonhart, Christoph StahlAbstract:Psychological research is based in large parts on response latencies, which are often registered by keypresses on a standard computer keyboard. Recording response latencies with a standard keyboard is problematic because keypresses are buffered within the keyboard hardware before they are signaled to the computer, adding error variance to the recorded latencies. This can be circumvented by using external response pads connected to the computer’s Parallel Port. In this article, we describe how to build inexpensive, reliable, and easy-to-use response pads with six keys from two standard computer mice that can be connected to the PC’s Parallel Port. We also address the problem of recording data from the Parallel Port with different software packages under Microsoft’s Windows XP.
Neil Stewart - One of the best experts on this subject based on the ideXlab platform.
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A PC Parallel Port button box provides millisecond response time accuracy under Linux
Behavior Research Methods, 2006Co-Authors: Neil StewartAbstract:For psychologists, it is sometimes necessary to measure peoples reaction times to the nearest millisecond. This article describes how to use the PC Parallel Port to receive signals from a button box to achieve millisecond response time accuracy. The workings of the Parallel Port, the corresponding Port addresses, and a simple Linux program for controlling the Port are described. A test of the speed and reliability of button box signal detection is rePorted. If the reader is moderately familiar with Linux, this article should provide sufficient instruction for him or her to build and test his or her own Parallel Port button box. This article also describes how the Parallel Port could be used to control an external apparatus
Tristan Stenner - One of the best experts on this subject based on the ideXlab platform.
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In COM we trust: Feasibility of USB-based event marking
Behavior Research Methods, 2021Co-Authors: Stefan Appelhoff, Tristan StennerAbstract:Modern experimental research often relies on the synchronization of different events prior to data analysis. One way of achieving synchronization involves marking distinct events with electrical pulses (event markers or “TTL pulses”), which are continuously recorded with research hardware, and can later be temporally aligned. Traditionally, this event marking was often performed using the Parallel Port in standard personal computers. However, the Parallel Port is disappearing from the landscape of computer hardware, being replaced by a serial (COM) Port, namely the USB Port. To find an adequate replacement for the Parallel Port, we evaluated four microcontroller units (MCUs) and the LabJack U3, an often-used USB data acquisition device, in terms of their latency and jitter for sending event markers in a simulated experiment on both Windows and Linux. Our results show that all four MCUs were comparable to the Parallel Port in terms of both latency and jitter, and consistently achieved latencies under 1 ms. With some caveats, the LabJack U3 can also achieve comparable latencies. In addition to the collected data, we share extensive documentation on how to build and use MCUs for event marking, including code examples. MCUs are a cost-effective, flexible, and performant replacement for the disappearing Parallel Port, enabling event marking and synchronization of data streams.
