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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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QEMU: How to connect a SD card to a specific controller?

I want to connect a SD card to the first SD controller of an i.MX6 SoC (the one with base address 0x2190000). However QEMU defaults to adding it to the third controller (tested with version 4.2 and 5.1). QEMU arguments: qemu-system-arm -m 2G -M…
Lasergurke3D
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Are data and instructions segregated in the data bus in modified Harvard architectures?

In a modified Harvard architecture, both data and instructions (code) are stored together in DRAM and in L2 cache, while being separate at the L1 level. They are also both transferred from DRAM to cache through the data bus. I read that there can be…
Xababa
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Behavior of bus address in "popl %eax"

In a scenario where I have the following assembly instruction: popl %eax Would there be any information flowing through the address bus? From what I understand about the functionality of a CPU, there would be no information flowing through it,…
Vitor Carvalho
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spring-cloud bus kafka RemoteApplicationEvent originService is null when refresh

I have two different spring-cloud services using spring-cloud-starter-bus-kafka to receive new config refresh from a centralize service. When call refreshBusEndpoint.busRefresh() in centralize service-A receive:RemoteApplicationEvent originService…
chi nguyen
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Share large structures among several Function-Blocks

In my matlab-base-workspace I have a big structure, that contains a lot of data, that is important for my simulation. Now to access this data in simulink, I though it would be possible to declare the structure as global, and access it this way in…
Lemonbonbon
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How to connect ports to a Bus properly in VHDL?

i am currently fooling around with some VHDL Code to try out a view things. For my current approach i need to split up a bus into ports. Therefore it would be the prettiest solution to "hard connect" the bus with the ports in the entity…
E.Murphy
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AppFabric Bi-directional cross-platform support

I'm hoping to use Azure's AppFabric ServiceBus to host a Publish/Subscribe messaging system. My clients will all be mobile devices (android, Iphone etc...) running hybrid applications. My question is: can my mobile clients receive messages from a…
dalcantara
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VHDL High 'Z' while using bidirectional I2C bus with ADC

I am trying to implement an I2C bus that communicates with an ADC. I wrote a (not yet finished) state machine, which should implement the I2C protocol. The functions are: write a configuration to the ADC, then read two Bytes from the ADC which…
user10622651
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OSB 11g installation failing at checking Operating system certification and checking service pack

While installing Oracle Service Bus 11g, it is getting failed at the prerequisite check step. It states: Failed-Checking Operating System certification Failed-Checking Service pack.
Akanksha
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chapter 2 rails tutorial - get BUS error after using rake db:migrate

HI I don't understand the error message I keep getting when I try to use $rake db:migrate in chapter 2 http://ruby.railstutorial.org/chapters/a-demo-app of this rails tutorial. I'm using rvm (latest) ruby-1.9.2 rails 3.0.6 (I've tried using…
Mac Duck
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Azure/qpid-proton-j-extensions maxframesize limits the size of messages to 4KB

Azure/qpid-proton-j-extensions WebSocketHandlerImpl throws an exception if the dsetination buffer is smaller than the message stream which seems to be hardcoded to 4KB plus some header info... from what i've read azure service bus allows messages…
JoseMPita
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Identify if a message is already read in Azure Service Bus Topic

I have 65k records in Azure Service Bus Topic, while testing, whenever my test application is started, it reads all the 65k records. Can you please help me how can we avoid reading messages that have already read or How can we read only the messages…
Jayanth Kulkarni
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Illogical bus error from printf in C

When I compile and run my code, I get a bus error right after it prints "starting." Here is what happens: bash-3.2$ ./remDup starting Bus error #include #include void removeDups(char* str) { int len = strlen(str); int…
gfrkwiz
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High availability in Azure service bus and event grid integration

I am working on a solution where messages posted in service bus topics will be passed as events in event grid and those events will be parsed by Azure functions and stored in Cosmos Db. From Db API layer (may be service fabric hosted microservices)…
Jay
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Finding list of bus stop transfers in bus traffic

Let's say I have a list of lists of every possible transfer between two bus lines. [a,b] [b,a] [b,c] [c,b] [b,e] [e,b] [c,e] [e,c] I want to go from a -> e Wanted results: [a,b,c,e] [a,b,e] You can read the above as: [a,b] [b,e] a -> b -> e =…
Heir
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