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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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About unitialized TUSER signals in AXI4-Stream Protocol Assertion after reset deassertion

Recently I've noticed the following in the documentation for the AXI4-Stream protocol from ARM (found here): Recommended assertion for TUSER as per ARM I thought it was interesting that TUSER must be initialized during the deassertion of reset,…
EyeballWitch
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[Laravel]Phpunit testing Bus chain ReflectionClass error

I wanted in my laravel app in some job to run three jobs one by one, so I used Bus:chain like in code below Bus::chain([ new CarJob( $this->carService, $this->userRepository, …
Isild
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Find the interface type and revision of a hard drive using in a windows machine

I'm looking for a command in Windows (either cmd or powershell) which will allow me to get which exact type of bus interface my storage device have, not only the type, but also the revision (SATA3, SATA4, NVME2.0 and so on). For example: > wmic…
Guy Markman
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How to create a Netlogo model for bus transport (public transport)?

I am trying to make a simulation of people boarding a public bus in Netlogo. However, I have very little experience with coding. I tried to create it myself, but sadly I'm stuck. So I hope that you can help me out. I will first explain what I want…
Dwayne Johnson
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Omnet++ SCSI repository Time-out

I'm trying to download a SCSI Bus OMNET++ simulator from a repository for educational purposes, but it's 20 years old and I can't find any other repository, does anyone know anything about this? The link to the repository is:…
Felipe Trebino
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Android Application (Bus Tracking)

I am creating a bus tracking app in which i have to track the driver with the help mobile's GPS location. I have completed current location tracking of driver but I want to know how should I give this info to user by map sdk. Can somebody help me…
rohit bhure
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AWS EventBridge Event Bus: Can't add scheduler Expression to custom event bus

i need to add dynamically schedule expression rule to AWS EventBridge when the default event bus is full i create new event bus and start adding new rules to newly created event bus everything's works perfectly the problem is that the custom event…
Zakir Adel
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Azure Service Bus - Unable to close a session manually using Java

There is an Azure Service Bus Queue with the session property enabled (Requires session = true) The consumer is a native Azure Java "client" (com.azure:azure-messaging-servicebus) The problem is that there is no way with this Java client to close…
Tzoras Spiros
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Arduino Nano communication with ST7735 over SPI-Bus

I use an Arduino Nano with a ST7735 display and a CAN controller MCP2515. Via SPI bus I want to communicate with the display and the CAN controller. The communication via CAN controller works smoothly. With the display I have the problem that it…
DeThe92
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Multidrop Bus addressing

Currently I am reading the MDB_interface_specification( (https://namanow.org/wp-content/uploads/Multi-Drop-Bus-and-Internal-Communication-Protocol.pdf) Version 4. 3(July 2019). In Kapitel 2.3 page 34 they are talking about the Peripheral Address and…
pat des pat
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MassTransit RabbitMq bus attempts to start multiple times

I upgraded MassTransit from v7 to v8 and I am getting some new log messages and want to make sure nothing serious is happening. When I start up my console apps (either together or individually) I get the following: [10:01:54 WRN] Start called, but…
Christopher Fernandez
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Are PS/2 devices port mapped I/O devices?

Are PS/2 devices like old-style mice and keyboard are port mapped I/O devices? Are there any PCI or USB devices which can be functioning as port mapped I/O devices?
Franc
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Trouble accessing and printing the parameters from a Bus in a MATLAB Script

I am trying to write a list of all the names of a bus I'm using as argument for a MATLAB Function. Right now I'm using: function write_list(busObject) fileID = fopen('list.m', 'w'); fprintf(fileID, busObject.Elements.Name); fclose(fileID); The…
churro
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How ports for communicating with I/O devices are chosen and how do they know when the CPU talks to one of them?

I was wondering how a port for a given device controller is chosen and how it knows the values on address/data/control bus are for him. Let's take the 8259A PIC for example, which is connected that way to the address/data/control bus: 8952A…
Dewo
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Communicate with a regulator via serial port with Local Process Bus (LPB) protocol

My goal is to retrieve data and control my boiler. This boiler communicates with my controller via a digital bus (LPB) which was developed by SIEMENS. I did not find a complete document on the protocol because it is a closed protocol. My controller…
neuromob
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