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Questions tagged [hardware-interface]

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When removing & readding an element loaded through serialbus in Nodejs array my system crashes

So im writing this piece of code to maintain modules on a bus in NodeJs to replace older Delphi 4 code. The module sends information in blocks, these blocks contain the encoded information and look like this: { sender_module_group: { name:…
Twizzler
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Linux device interaction

In Linux, is it possible for an application interacts with hardware device( for instance: camera) without using /dev/* device file?So I mean is possible to use hardware device without making or “using” /dev/* device file?
Gregor
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accessing low level attributes of a NSStream

I have a Keyspan PCI to RS-422 adapter that I'm using to connect old serial devices to a Macintosh. I would like to use NSInputStream and NSOutputStream to read and write so that I can take advantage of asynchronous nonblocking I/O since there will…
Jason Sikes
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What is an OS' HAL?

The hardware abstraction layer (HAL) is (AFAIK) the lowest level software within a computing system. Thus, is it a set of functions implemented in assembly language (specific for a particular processor) which are called by some routines from the OS…
linuspauling
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Advice dealing with Undefined Behavior in Python using Ctypes - OSError:exception:access violation reading 0x00000000000000000

I am using Python 3.8.8 (64-bit) to interface with a device (Meadowlark Spatial Light modulator) using ctypes 1.1.0 to read the provided DLL file and send data to the device. I am using Windows 11 Pro for Workstations. I am seeing Undefined Behavior…
Maaike Van Kooten
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CK (tCK, nCK) unit ambiguity in DDR3 standard/datasheets?

I am designing a simplistic memory controller and PHY on an Artix-7 FPGA but am having problems reading the datasheet. The timings in the memory part's datasheet (and in the JEDEC JSD79-3F doc) are expressed in CK/tCK/nCK units, which are in my…
jayded-bee
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Connecting Android phone to PC doesn't work anymore

When I connect my phone (an HTC Hero running Eclair) to my PC (running Vista), the phone begins charging but doesn't connect to the pc. I can't access the SD card or install apps from Eclipse on it. Normally, the phone would ask me what kind of…
JarOfEyeballs
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Unit Testing With/Without hardward in the loop

Background I am working on a project that interfaces with various cameras and their unique APIs. All cameras are abstracted into one interface, and the camera-specific API calls are contained within their own implementing classes. Problem…
Garrit Strenge
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Windows 10 Crashes when Running Python Code (PyVisa)

I'm trying to automate data collection from an SR245 Boxcar using Python 3.6 and the PyVisa library (version 1.11.1). 9/10 times, it works great. However, three times over the course of two days it has caused the entire computer to crash and reboot…
jaycoh
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Is there a way to make a BLE tag secure without too much effort in programming it?

Does anybody know if there is a commercial BLE tag that cannot be copied and can communicate with a BLE HM-10 module. So, programming it before, I can "install" on it a private key that can be read out by a Master BLE device and I can be sure there…
max_s
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Can you make a remote connection in Solaris 7 unix appear to be local?

I am running a hardware test on stand that runs a GUI simulation in Solaris 7 SPARC machine. I can not turn on power to the test equipment remotely because the simulation code checks to see if your local. I can not change the test stand code because…
Paul
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Error received while deploying code to Pixhawk4 from Simulink

I am trying to run an example Simulink model provided by Mathworks, but while deploying the model to the Pixhawk flight controller, I am receiving the following error: Error(s) encountered while building "px4demo_uORBReadWrite": ### Failed to…
Chris Toomer
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How do I set a pin of 8051 high?

I'm using Keil to program the AT89C52 Microcontroller. I define a sbit to be a single pin of a port. For eg: sbit a = P0 ^ 0; But when I set a = 1, then I get the pin in a gray color in proteus where I run the program on simulated hardware. For…
Nabeel Parkar
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Simplest method to run three desktop environments

I hope this question still falls within the remit of the stack-overflow exchange.. I need to run three web applications on three different displays as simply and cheaply as possible. Each display will have a user entering numerical information onto…
Alex
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how to use single input textbox to write multiple inputs to the hardware using winform and socket programming c#?

I am working on a C# Algorithm in which i need to write dynamic inputs to the hardware platform. I am new to c# But i do have an algorithm in which i can write single input using winform textbox. Now i am trying to use the same winform, apply any…
K. Maqsood
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