Questions tagged [configuration]

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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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69 views

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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15 views

Has anyone configured/initialized a BCM89501 to use BroadRReach mode on all 4 channels?

I have a board where my configuration seems to get the individual channels in a good state about 80% of the time, but that means that I frequently have one or more bad channels on a board. Which ...
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2answers
581 views

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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67 views

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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2answers
66 views

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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1answer
139 views

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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31 views

Configuring Xbee3 Mesh role from a microcontoller

I am looking to set up a Zigbee Mesh Network using the Xbee3 module, but a question that I have is would I be able to configure this network (and even change roles) “on the fly” using an STM ...
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1answer
49 views

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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1answer
1k views

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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1answer
72 views

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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2answers
505 views

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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1answer
96 views

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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1answer
210 views

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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66 views

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 "...
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1answer
110 views

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 ...
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1answer
4k views

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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1answer
2k views

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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1answer
255 views

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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33 views

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 ...
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1answer
376 views

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 ...
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1answer
920 views

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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2answers
323 views

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. ...
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58 views

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 ...
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1answer
68 views

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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11answers
5k views

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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1answer
440 views

Configure Serial with registers on STM32l073RZ

I'm trying to configure the Serial of my STM32L073RZ with registers to send datas on the PA_9 pin. Currently I have this script ...
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2answers
1k views

Can I run my Nios II from program in SRAM or SDRAM, how?

Is there a "standard" (Altera supported) method to run my Nios II from off chip memory like SRAM or SDRAM? Since the design is in prototype stages, it means that I am using JTAG for configuration and ...
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1answer
217 views

What is the effect of remapping ports on a USB hub

I'm using the USB2517 for a project. It's a seven port hub, and I'm using six of them. I'm working through the config settings, and I'm stumped by the port remap registers. The datasheet gives the ...
2
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1answer
88 views

Begin programming using audio signals

I recently purchased a Amcrest ProHD IP2M-841W 1080P camera where the initial configuration is done over some kind of audio signal, a companion app for mobile phones which, at the end of the ...
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3answers
2k views

AtTiny85 analog / digital pin configuration order in setup

Bug in compiler or what ever? Simplified circuitry there is 2 LEDs and 1 analog input. LED connected to pin PB1 lights very dim when output is high. It seems that output has been configured to high ...
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1answer
233 views

All possible BJT circuits relating to polarity

The BJT can operate in 4 different modes/zones since there are two voltages on it: Active mode Inverse/Reverse active mode Saturation mode Cut-off mode Because Emitter and Collector junctions can ...
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1answer
713 views

FPGA Configuration Flash as General Purpose Memory After Boot

I am currently working on a system with a Spartan-6 FPGA and have a need for some low volumes of non-volatile memory to be used during system operation. My question is, since I have a relatively ...
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1answer
1k views

Combine a vhdl and verilog configuration file

I'm trying to create a simple proof of concept regarding the configuration of our testbench (binding the correct entities to components/modules). The structure is as follows: top(VHDL entity) --...
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1answer
460 views

How do I work out the pin configuration of this crossfader with a multimeter?

I got this crossfader out of an old DJ mixer. I want to use it in an electronics project of my own design. It's got 4 pins - which I presume are 2 x input, 1 x output and 1 x ground. Using my Fluke ...
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2answers
80 views

Separate calibration values from program

I am working on a device with an internal pump. Due to small differences in the pump's motor speed, I have to calibrate the pump. The result is a value between 0 and 1 (PWM duty cycle). The PWM is ...
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2answers
159 views

LMR16030 voltage regulator circuit

I am trying to set up a circuit to use the LMR16030 buck regulator to step down 60V to 9V. I bought the Powergood version and I'm not sure how to connect the power good pin. As you can see in the ...
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1answer
88 views

LMR16030 voltage regulator pin configuration [duplicate]

I just bought a HSOIC-8 LMR16030 and have tried to plugged it in my circuit but didn't manage to make it work. I'm thinking this might be due to me misunderstanding the pin configuration. What are the ...
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2answers
126 views

Is there a standard way to build a configurable circuit topology mesh using mechanical or solid state relays (or/and other components)?

Preamble: The motivation is to build a hybrid analog/digital computer this is reconfigurable (the topology of the opapms, resistors, capacitors, adders are all wired automatically -- without human ...
2
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1answer
293 views

Wrong pin configuration of LM317 and LM337

I have a problem with the circuit i was given it seems that i made my circuit connection wrong. the pinconguration of LM317 and LM337 are on the left picture with 1-2-3 while i am suppose to connect ...
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1answer
4k views

Xilinx Programming FPGA from SPI Flash without JTAG

I'm trying to be able to configure my FPGA by loading the configuration into the flash memory. I am able to write to the SPI flash through an ethernet interface, so I think it would be possible to ...
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1answer
359 views

Altera FPGA Configuration using Flash

During my current PCB design using Altera FPGA, I happened to come across knowledge that Altera EPCS devices are to be used for FPGA configuration. After further research, I realized the same job can ...
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1answer
4k views

Dahlander winding: Does the voltage rating change between connections?

From my understanding, "normal" motors in delta/wye connection, have rated interphase voltage of 220V in delta, 380V in wye. But how about Dahlander motors? These are motors that are built to achieve ...
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3answers
2k views

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 ...
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1answer
121 views

Where are details regarding peripheral configuration for STM32 controllers in datasheets?

I have recently begun working more with STM32 processors coming from the more simple Atmel 8bit variety. The Atmel datasheets are very nicely laid out -- specifically speaking to how they provide ...
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1answer
198 views

Is it possible to get an exponential capacitance curve from coded dip switch

I have a capacitor that controls frequency for a specialty IC with the relationship \$F \propto 1/C\$ I want to be able to get a number of frequencies in evenly spaced intervals. Currently I have a ...
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1answer
197 views

FPGA + SRAM - floating inputs of SRAM during configuration of FPGA

I'm connecting SRAM to FPGA (Spartan 6). During configuration and during periods when FPGA will be down (for example I would like to turn off FPGA when external flash will be programmed by uC) address ...
3
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2answers
1k views

Can not keep pin LOW during FPGA configuration

I would like to have a control signal that stays low all the time and goes hi only when I tell it to. Initializing the pin in the entity does not seem to set the value to zero (xc6slx25-3ftg256): <...
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3answers
151 views

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 ...
2
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1answer
12k views

How to change Bluetooth music receiver's name and other settings using a serial converter (or otherwise) [closed]

I'm rather new to electronics but I have a fundamental grasp of the general concepts. I'm not very fluent, however, on the workings of specific devices as of yet (internally, I mean; inside their ...