Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [configuration]

114 questions
17
votes
6 answers

Choosing Configuration Jumpers - Solder bridges, 0-ohm resistors, DIP switches, pin jumpers

I'm working on a development board, and need to let users set some configurations. It will be used by students and engineers who are trying to build circuits on a breadboard; I'm not dealing with consumers. Usually, the settings will stay the same,…
Kevin Vermeer
  • 19,989
  • 8
  • 57
  • 102
12
votes
11 answers

Alternatives to a classic DIP switch

I'm looking for a part that enables a user to frequently change a configuration. Right now I'm utilizing a SMD DIP switch connected to an I2C I/O expander. What bothers me is the large footprint of these components (DIP switch combined with IO…
timonsku
  • 1,368
  • 3
  • 14
  • 30
10
votes
2 answers

MSP430 Code Size in CCS

This should be pretty straight forward, but my google-ing is not turning anything up... I can build my project successfully in TI Code Composer Studio (CCSv5) and target my device. Now I want to know my program code size, so that I know how much…
vicatcu
  • 22,499
  • 13
  • 79
  • 155
8
votes
2 answers

What does "configuration" refer to in PCI and PCIe? How is this different from "Enumeration"

I am not being able to find a clear description of what configuration means in PCI and PCIe. I have found something called as configuration space, but without knowing what configuration means, it is not possible to really understand what…
quantum231
  • 11,218
  • 24
  • 99
  • 192
8
votes
3 answers

What does #if 0 do

Today I started to use MPLAB X to program my PICs, and found a code template, with multiple files and spots to fill in code. Before I have had a single file with my code in it. In this template, where I am supposed to put my Configuration bits,…
varesa
  • 639
  • 1
  • 7
  • 26
8
votes
3 answers

What actually happens when we set direction on GPIOs in controllers ?

Generally, while working on GPIO pins of any controller/device, we set the directions for the GPIO pins. Let's say in LPC2148(ARM7 core) controller, we have IODIR to configure the direction of Pin. We set the IODIR for output and clear for…
GShaik
  • 167
  • 2
  • 10
6
votes
2 answers

What Are Lock Bits?

What are lock bits in microcontrollers used for? Are they something specific to AVRs, or used more of a general concept in microcontrollers?
vicatcu
  • 22,499
  • 13
  • 79
  • 155
5
votes
2 answers

Can you find the datasheet for this IC

Can someone help me to identify this VISHAY IC? Tips on how to do this are also welcome :). I could not find anything by searching with the numbers on top of the IC. The IC is used in a MKS 649B Pressure Controller.
Twan Vooijs
  • 51
  • 1
5
votes
3 answers

Why are T-Filters better than L-Filters?

I was watching a beginners video about electronic filters. In that video, the presenter shows the same filter (same inductance and capacitance values) configured as an "L-Filter" and a "T-Filter" as follows: During the video, the presenter…
T555
  • 1,569
  • 2
  • 17
  • 27
4
votes
2 answers

VHDL configuration: Selecting architecture

I'm learning the use of configuration statement. For this I've created a top level entity not_gate and an architecture structural. I've also added another vhd file to this program, and that vhd file (notgate) has a single entity and two…
Analon
  • 331
  • 4
  • 14
4
votes
1 answer

Is it possible for an FPGA to "partially" configure?

I have a spartan 6 board that I designed and am having some configuration issues. I'm using SPI flash to program the fpga (e.g. I use jtag to write the flash and the flash then writes the fpga). The schematic I used for the configuration can be…
Doov
  • 1,138
  • 6
  • 20
4
votes
1 answer

BASYS3 FPGA pin planning and configuration question

I have designed a basic 8-bit CPU that is mapped onto FPGA fabric on a Digilent BASYS3 development board. The DRC results in a few error messages that I do not understand, with one of them being shown in the image below: Now I have found where I…
David777
  • 1,548
  • 12
  • 29
4
votes
1 answer

What may be the reasons for an FPGA to lose its configuration?

I am working with some NetFPGA-SUME boards and I have an issue that is bothering me. This board contains a Xilinx Virtex-7 690T FPGA, a part that loads a configuration file into internal configuration RAM. When the FPGA loads the configuration file,…
anmomu
  • 161
  • 1
  • 6
4
votes
2 answers

I need help getting my computer to talk to my Arduino Uno

I've recently jumped on the Arduino bandwagon and am attempting to upload my very first sketch to my Arduino Uno installed on COM port 3. However, I get errors that another device is using COM port 3 and I need to disable that device. Specs: Win…
dwwilson66
  • 3,402
  • 11
  • 33
  • 42
4
votes
2 answers

Kelvin type connection

I'm studying semiconductor parameter analyzers. Those instruments are based on SMU (source and measuring unit) which can work either in the V-mode (they force a voltage on the device under test and measure the corresponding current) or in the I-mode…
Stefanino
  • 616
  • 4
  • 16
1
2 3 4 5 6 7 8