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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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Is Parallel ATA (PATA) also called Serial Bus?

Is Parallel ATA (PATA) also called Serial Bus? If yes, then Serial ATA (SATA) is also called Serial Bus?
gynn
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Static or dynamic width access to computer BUS?

Suppose we have a simple processor, could be an embedded system, with one system bus, for the sake of the argument, a 32bit bus. Now, if we have a couple of Peripherals, one named PER0 for example, attached to the bus, we can do two things: Allow…
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Websphere Message Broker and Websphere Transformation Extender Installation

I am having issues making WMB and WTX work together on Windows environment. All the installations seem to have successfully installed. Now, when i add a WTX node in a Message Flow, i get 2 exceptions: java.lang.NullPointerException at…
mandy
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Driving GPIO pins shared with SRAM in VHDL

I've bought a Spartan 3A development board from Micronova (http://micro-nova.com/mercury) and I've got some problems interfacing with its SRAM. This board has 30 GPIO pins that are shared with Cypress SRAM and two pins to switch between…
JohnKiller
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LIN bus slave transmitting without master

How does a LIN bus slave device behave, if no master is connected? In my research I noticed, that in LIN version 2.0 every message is initialized by a header frame which is sent by the master device. For tests I powered a LIN slave device and did…
wewa
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Bus Implementation... Checking For Fragment Equality... Or Something Similar

I have implemented a bus for my app for communication between fragments and activities. I add a subscriber by adding an instance of either a Fragment or an Activity to a list. and I iterate through that list invoking a method to notify each of the…
Jason Crosby
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Questions on Topic filters in azure service bus

Couldn't find any articles answering this specific question so here goes. Say you have a topic called companyorders and you have 3 filters/subscriptions, companyA, companyB and allcompanies. Messages sent to the topic for companyA get passed to sub…
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Is 36-bit address bus needed for Physical Address Extension?

Is 36-bit address bus needed for Physical Address Extension on 32-bit processors? What would happen if I used 32-bit address located in page that has 36-bit address?
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Get VGA BUS type via VB.net

How do get VGA BUS type (AGP, PCI, PCI-e...) via VB.net? This return what videocards in computer: SELECT Name, PNPDeviceID FROM Win32_VideoController How can I get the bus type from these video cards to have PCI or PCI-e or AGP connected to…
Zserigta
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Message store unavailable! WAS 6.1

I' m stuck on an issue and need your advice. Messaging Engine not coming UP (Error, "com.ibm.ws.sib.msgstore.TransactionException: CWSIS1099E: An unexpected exception has occurred. Exception: …
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Bus error - What's wrong with this piece of code?

long int d[500], i; d[1] = 1; d[2] = 2; d[3] = 4; for(i = 4; i<=500; i++) d[i] = d[i-1] + d[i-2] + d[i-3]; int n = 500; printf("%ld\n", d[500]); The compiler is gcc. Bus error occurred at compiling. What caused this to happen?
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BUS Error C++ reading file

Im trying to do a very simple thing, read numbers from a file using ifstream in C++. My input file called POSCAR supercell 1.00000000000000 7.3287291297858630 0.0000000000000000 0.0000000000000000 …
user1705329
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FORTRAN program can't read all the data into an array, size limit?

I have a csv file that has about 2 million lines, and about 150 columns of data. Total file size is about 1.3 GB. That's about 300 million array members. I started with a 3.5 million line file, and through trial and error learned that FORTRAN would…
user1770223
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input from command-line argument works, but input from internal char* gives Bus Error. Shouldn't it be identical?

I wrote a function that will take a char* representing a binary number, and add one to that number. I've encountered a very confusing error, which is that the function works fine and dandy when the char* comes from user input when calling the…
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Shouldn't the CPU's data bus match ROM's data input?

I'm supposed to design a system having CPU with a 16 bit wide ADRESS BUS and a 8 bit wide DATA BUS. In this system I have to my disposal a: RAM with a DATA width of 4 bits, and a ADRESS width of 12 bits. and a: ROM with a DATA width of 8…
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