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Questions tagged [bus]

A Bus is a physical device used to connect different functional blocks of a computer or a different computers in order to communicate them together. Also Bus is a data type in MATLAB language used to bundle some data to virtual (just for useful rendering) or non-virtual (for contiguous memory allocation) structure.

The Bus advantages (as physical device) over wires are reducing the needed number of wires and catholicity. The main characteristics of Buses are width (amount of bits can be transmitted at once) and frequency (work speed).

The Bus as a structure of MATLAB language used to bundle different variables (or signals, for example in Simulink) in one structure. Can be used as virtual bus just for convenient accessing to variables and for reducing number of wires at Simulink diagram or as non-virtual - Nonvirtual buses use contiguous memory allocation for variables.

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Bus Driver vs Device Driver vs Device Controller

I've come across the above terms in more than a few articles regarding embedded systems and protocols. I would appreciate you help in understanding what is the difference between: Bus driver Device driver Device controller I tried finding simple…
Yarden
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What is the difference between Memory and IO bandwidth and how do we measure each one?

What is the difference between memory and io bandwidth, and how do you measure each one? I have so many assumptions, forgive the verbosity of this two part question. The inspiration for these questions came from: What is the meaning of IB read, IB…
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What are the most common busmaster operations, and how are they better than regular DMA?

Can someone list the most common operations that use the bus mastering provision of the host bus? I can list a few.. 1) The GPU transfers the overall framebuffer to the video card using bus-mastering over PCI-e (in recent x86). 2) The ethernet card…
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Python-Dbus Define Array of Integers

I'm trying to use Python-DBus to return an array of integers from one python script to another. The DBus server looks like this: def int_to_bytestring(number): bytestring = number.to_bytes(4,'little') return bytestring def…
PhilBot
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Mass Transit connection management on class library

I am trying to use mass transit for request response handling. Most examples for mass transit are for console application or web application and I don't know how to start or stop bus on producer when I use it in class library. Because in examples…
Fikret Asma
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Importing OSB Config Jar in Service Bus Console of Different Environment

I have created an OSB Project in Oracle Jdeveloper 12c.Based on the Oracle docs I created config jar for the same and imported in local weblogic server. It is working fine. But If I import the same config jar to a different Environment, I am getting…
Karthi
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Error 403--Forbidden - web service error when I use SOAP UI

I created a WSDL Based Service in Oracle Service Bus 12c. I use HTTP protocol and I configured a Business Service, Proxy Service and Proxy Service pipeline... When I use the testing tool of Oracle Service Bus, will test successful. when I invoke…
David Flores
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"org.apache.cxf.jaxrs.bus.providers" not working

I'm creating 2 REST containers using . I want to keep some common things like the JSON providers, validation interceptor, exception handling using a cxf bus. below is my application context.
Abhishek
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What IP address for an iPhone app using TfL data?

To get a data feed from Transport for London (TfL) the registration form has a mandatory field that wants the IP address of the server requesting the data. But for an iPhone app that uses NSURLConnection, it is the phone that does the downloading so…
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bus error: 10. C code, malloc example

When I try compiling the following C code, i get a bus error. I'm guessing it has something to do with the way I have called memcpy, however I cant figure it out. Any help would be greatly…
Sid
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Von Neuman Architecture, is this still applicable

Reading the article on Wikipedia on Von Neumann Architecture, it says the following The meaning of the term has evolved to mean a stored-program computer in which an instruction fetch and a data operation cannot occur at the same time because…
Tony The Lion
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How can I get rid of the reflection invoke in this piece of code?

I'm building a simple "bus" as a proof of concept. I do not need anything complicated but am wondering how best to optimise the following piece of code. I'm using Autofac as a container to resolve commands as open generics but actually executing…
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Failed to open connection to system message bus : Failed to connect to socket /var/run/dbus/system_bus_socket

When using WSL2 on Win 10 Professional (build 2004 (20236.1000) in Ubuntu 18.04 I am running into the following error: see below picture. Googling does not lead to an answer to find the root cause and the fix for this problem. Hopefully, someone…
gorkys
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nServiceBus UnicastBusConfig.MessageEndpointMappings.Endpoint

I am playing with custom config for NServiceBus and I am implementing IConfigurationSource. In the case of UnicastBusConfig, what is property UnicastBusConfig.MessageEndpointMappings[n].Endpoint supposed to be? Thank you
user691856
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How to access the ISA configuration space and what does it look like?

How do you access the ISA configuration space programmatically and what does it look like -- how do you set base addresses for ISA PnP Option ROMs?
user13634393
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