Questions tagged [configuration]
The configuration tag has no usage guidance.
107
questions
4
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1
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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 ...
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1
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42
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Why does the USB specification have 3 different system power configurations?
I was reading about USB specifications/configurations from this PDF.
On page 5 it says that USB power configuration can be achieved (can be configured) with 3 different power options.
I have utilized ...
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1
vote
1
answer
79
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Understanding the implications of STM32 pinout configuration conflicts (yellow triangles) in CubeIDE?
Using CubeIDE and configuring STM32L072 I get some (yellow triangle) GPIO conflicts on my I2C2 interface. The GPIO's are assigned to other non I2C uses. Where would I look to understand the ...
1
vote
1
answer
384
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What is the Intel FPGA configuration file .pof used for, and how is it different from the file .jic?
The Intel FPGAs have a number of different programming files, among these the files:
.pof (Programmer Object File)
.jic (JTAG Indirect Configuration)
I know that the file .jic can be used to program ...
- 561
0
votes
1
answer
78
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Dual LED Configuration [closed]
I'm looking for a dual color red/green LED that is not common-anode, not common-cathode, but common anode-cathode (anode of one LED shares a pin with the cathode of the other LED). Can anyone list a ...
2
votes
4
answers
420
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Why is this op amp configuration used in Ah method SOC estimation?
While reading a research paper about enhanced coulomb counting, I found this peculiar sensing circuit (inside the red lines).
(Research paper: Xie, Jiale, Jiachen Ma, and Kun Bai. “Enhanced Coulomb ...
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1
vote
2
answers
758
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PCIe End-Point configuration for communication with Root Complex
I have an ambiguity regarding the PCIe initial configuration which is performed by the root complex (RC) on the end-points (EP).
Both devices have their own base address registers (BARs). The RC ...
- 135
3
votes
1
answer
360
views
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 ...
- 151
0
votes
1
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27
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What is difference between MPQ8645PGVT-3010-Z and MPQ8645PGVT-3011-Z?
The both MFG no mentioned above has same datasheet? In datasheet they have mentioned like there is a programming for the configuration.
Link: https://www.monolithicpower.com/en/documentview/...
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0
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171
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Shelly 1 Configuration
I am trying to implement the Shelly 1 switch for an electronic device I have. The electronic device has an open collector output channel (AUX1). It also has two output pins Z8 and C.
When Z8 and C are ...
1
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2
answers
212
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How to tell if pins are I/O from schematic?
I am using the Fusion360 New Electronics Library to reproduce the footprint/schematic of the NHS3152-AZ.
Following along from Tutorial: Creating electronic components with Fusion 360, at min: 8:09 ...
- 251
0
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0
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71
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DDR3 configuration on custom board
I have a custom board with a new platform which does not have any tool to configure the DDR setup( I asked). I have the Source code for the uboot.config (CONFIG_DDR.c, CONFIG_DDR.h etc). So I have to ...
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2
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1
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203
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How are Microchip configuration straps used?
I'm working with a Microchip USB hub IC (USB2533 to be specific) and can't nail down a straightforward answer on how their configuration straps work through my own research. On this device, many pins ...
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1
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0
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31
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Signal path / configuration help for a PLL for AWG
In our system signal path, there is a clock signal being sent from the FPGA noted as SCLK. This goes to each component not including the MCU.
The way I understand this is that the PLL receives the ...
- 55
0
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1
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99
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FPGA configuration - Multiple Device SelectMAP - sharing PROG line
So I wanted to program multiple FPGAs (different images) by using a processor over SelectMAP interfaces. I plan on sharing the PROG and INIT lines across the multiple images like this:
This issue I ...
- 189
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105
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Vivado partial reconfiguration error
I am trying to implement a minimal partial reconfiguration project using the Vivado GUI. I have successfully enabled the project for reconfiguration and created a partition definition. The problem ...
1
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1
answer
472
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Need help to configure the PCAP04
When I first used the PCAP04 chip for measuring capacitance, I felt very annoyed, because the information on this chip was really a bit garbage. Many things are not found in the official manuals, and ...
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1
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44
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Calculating maximum series/parallel configurations for unique resistors
Say I have 4 unique resistors. How would I calculate all the possible unique series and parallel configurations and thus, calculate all the possible total resistances?
And how can I expand this to ...
- 103
2
votes
2
answers
363
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Booting multiple FPGAs using a single SPI Flash
I am using 3 Artix-7 FPGAs in my design.
Is it possible to use single SPI configuration Flash to program 3 FPGA device.
I have found information about multiple boots for one FPGA but not multiple FPGA ...
- 79
0
votes
1
answer
47
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Pin Assignments for DE5-Net
I am porting a working sequential circuit from a DE0-Nano to a DE5-Net. The circuit is driven by one global 50 MHz clock signal. The circuit only has one input and one output port for serial ...
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0
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103
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Can multiple different vendor FPGAs exist on the same JTAG chain and be programmed?
During development work, JTAG is used to configure FPGAs. For the final version of the system there would be a few different options that will carry out automatic configuration of the FPGA actively or ...
- 1,557
2
votes
1
answer
85
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Melexis sensors how to get PWM output?
The Melexis MLX90372 datasheet says that it can output either SENT protocol or PWM. I do not see anywhere in the datasheet how to put it into "PWM Mode" as they call it. Nor do I see how to ...
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5
votes
2
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736
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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 ...
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1
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104
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Automatic series/parallel configuration
I've been thinking about this issue for a while now and came here for your guided assistance.
Situation:
Ik have 4 resistors (12V/1.25W heater pads). I need to power them with either a 12 or 24V ...
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3
votes
2
answers
639
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Why would a BLDC motor be "noisy" in reverse
I have a BLDC motor on a controller I built running in both forwards and reverse.
However the reverse direction is substantially noisier than the other and the motor vibrates more almost as if the ...
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votes
1
answer
431
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U-Shaped Electromagnet Configuration for a motor?
I've been thinking about motor designs and where all the power goes for an electric motor, especially in terms of used/unused power. I noticed that in most motor designs, the neodymium magnets float ...
- 145
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1
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310
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Problem in configuration of Tiva TM4C1294NCPDT on Code Composer Studio
I am using code composer studio and using the microcontroller below, I used Energia software to run a simple program and it runs, but when I use CCS and try to flash an example program for this MCU ...
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0
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921
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Which 18650 battery connection layout is best?
I am building a 5S6P battery with 18650 cells.
I have limited space so the geometrical layout is constrained.
I can think of 2 "optimal" ways to layout the cells connections but I don't know which is ...
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4
votes
2
answers
2k
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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 ...
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0
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69
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Multicontext FPGAs
I recently read some papers that mentioned multicontext FPGAs, which have several copies of every programming bit. This allows to download a bitstream to the board while the active context (the ...
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3
answers
613
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NOR Flash - Max Frequency of Operation
I am wokring on a board that uses Micron 1Gb QSPI (mt25qu01gbbb8e12-0aat) to load configuration on to FPGA at power on.
As per the datasheet of QSPI (https://www.micron.com/-/media/documents/...
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1
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975
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MPLABX with PIC18F4550 Debug and programming are not working
First I used MikroC for PIC to modify a firmware to a PIC18F4550. I was programming the device using MPLAB IPE and the PICKit3 programmer, everything was ok. Now, I need to change to MPLABX XC8 ...
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Why always in communication protocols R/W configuration,Reading is configured by “1” and writing by “0”? [closed]
when a microcontroller communicates with another one via one of the communication protocols there is a configuration bit in a control register to choose whether to send(write) or receive(read) this ...
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USB descriptor error on WIndows 10 - An invalid parameter was passed to a service or function
I have a USB 2.0 peripheral device based on an STM32 development board with hand-crafted code in C. This device works when connected to a Windows 7 computer but fails when connected to a Windows 10 ...
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126
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Is there an exponentiation configuration for MOSFETs or Opamps?
I am working on a problem that can be made really simple if the output of the transistor were to be a fixed power of the input. For ex., if the input is 8 V and power is 0.333, then the output voltage ...
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2
answers
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Altera has created EPCS and EPCQ devices, can only these be used to store FPGA configuration data?
FPGA configuration data must be stored in external non-volatile memory. Can we use just any flash memory or only specific types? What about EEPROMs or any other nonvolatile memory device?
Edit: I am ...
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Get more AS-attached flash chip information from ALTASMI
I am playing with the attaching various configuration flash devices to the Altera Cyclone 3. In particular, I want to replace EPCS16 (2MB) with W25Q128 (16MB) - for both size and cost reasons.
Is ...
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1
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1
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773
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BJT (Common-Collector Configuration)
As we know that for the transistor to operate in the active mode, it should have emitter-base junction as forward bias and collector base junction as reverse bias. So the common-collector ...
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0
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100
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Pin strength configuration
Please, help me understand the specsheet on page 2-22. The table says that 3.3V standard supports 12mA drive strength, but there is also a "software" defined strength. What is it? There is also a "...
- 3,124
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1
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262
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Taking Quizbowl buzzers and connecting to a computer
Recently I Bought quizbowl buzzers from buzzersystems.com and the buzzers i received use an rca cable.
If you did not know basically, when you click a button, it sends a signal to a box which ...
4
votes
1
answer
5k
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Error when using debugging under Atollic TrueStudio / STM32
I'm using
STM32F103C8T6
Atollic TrueStudio
STLink2.1
Error I get when debugging:
Debug configuration set in TrueStudio:
What worked before was in SW4STM32/Eclipse, with the following settings. I ...
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1
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4k
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Why is such amplifier configuration chosen for HB100 microwave sensor?
For HB100 microwave sensor module, I don't quite understand how this amplifier works and why it's been chosen instead of something simpler, such as two inverting or non-inverting op-amps. What can see ...
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395
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Calculate Collector Voltage In Collector feedback bias Configuration
I've tried using KVL and KCL but I always end up with two or more variables, and I've got another question, how can I know if this transistor is in the saturation region?
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Why is the order of these serial components changing the current flowing? (Keithley 236)
I have an electronics setup I'm using for research purposes. I'm having some strange behavior so I've tried to boil it down to the simplest working example. Most basically, a voltage is being applied ...
- 101
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672
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MPLABX + XC8 + Proteus 12F683 Configuration Word problem
I use MPLABX + XC8 with Proteus to simulate PIC designs.
It usually works fine...but I recently tried to use a 12F683 part and I get an MPLABX message "ERROR writing to CONFIG_MEM".
I think the ...
1
vote
1
answer
1k
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Transmit and receive data with nrf24l01
I have little bit problem to transmit and receive data with nrf24l01. I use spi communication to communicate my MCU and nrf24l01. My spi communication is working. But i cannot receive any data from ...
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2
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437
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usb to rs232 serial communication
I have to configure my rs232 to device(transmitter) using usb to serial communication. I have tried with usb to rs232 cable and connect the transmitter 6 pins to the db9 connector but it did not work. ...
0
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0
answers
75
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Embedding python interpreter in the TM4c1294XL
I have a python file that I want to run on the board. Hence I want to embed the python interpreter (written in C) in the board. I managed to write separate C project that runs the Python file. It ...
- 101
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1
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70
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Cost of expandable memory [closed]
Given two computers:
Has X gigabytes of RAM, that's the amount it ships with and that's all it will ever have, it can be designed around that number in whatever way is most efficient, solder chips ...
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11
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8k
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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 ...
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