Questions tagged [setup]

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Is it possible to import altium libraries all at once

I am trying to setup my own library folder without using the altium 365 or the vault feature. Is there a way I can install all the intlib/pcblibs+schlib all at once or make it part of a project ...
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What is the setup/hold time of the RMII receive interface of the TI DP83630 phy chip?

I'm interfacing the TI DP83630 phy chip to FPGA over RMII interface and need to write the timing constraints. I'm having difficulties interpreting the receive interface setup and hold time from the ...
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setting an initial directory for the NGSPICE

After one launches NGSPICE, I want NGSPICE path, or current directory to be setup by me. How is that done? I.e., instead of (for example): ...
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1 answer
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Why for setup check AND gates use rising edge, while OR gates use falling edge and vice versa for hold check in clock gating?

I have two questions on set_clock_gating_check SDC command. Why for setup check, AND, NAND gates use rising edge, while OR, NOR gates use falling edge ? Why for hold check, AND, NAND gate use ...
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Solder station grounding setup

I have a Sugon T26 soldering station. It has an European 2 pin plug, I have a 3 pin adapter for it. As far as I am aware there will be no ground connection using this method. It comes with a ground ...
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2 answers
184 views

Timing specifications in a communication protocol

I am having this I2C EEPROM Chip from Onsemi - CAT24C In table 6, AC Characteristics of the datasheet, only the Minimum time is provided for the SCL clock low and high period. My questions : Not ...
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Measurement of current with hall effect sensor

I have a setup using 3 hall effect current sensors and my goal is to measure the DC current flowing through cables. The sensors are HSTS016L. I attached a picture of the manual. The sensors have 4 ...
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1 answer
391 views

Setup and Hold Time: A general method to find whether a block satisfies the constraints

How to determine whether setup and hold time constrains are satisfied in a digital block? I encountered a question on the same, and it would be really helpful to know a general way to determine the ...
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4 answers
508 views

Flooring for home lab

I am setting up a home electronics lab for projects with my kids, currently ages 4 through 10. What type of flooring would work best? We will be doing art projects in the same room, so we need ...
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3 answers
474 views

Altium 18 - "Override library primitive" option missing?

I'm busy setting up my new install of Altium 18 to match my preferred settings, namely making the default schematic font Consolas (for the purposes of mono spacing and slashed zeroes). Normally this ...
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Power reading in different places

Currently, I have a software which able to read voltage, current, active power, apparent power and reactive power from appliances which I assume the readings should be approximately same even though I ...
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5 answers
3k views

Setup and hold time output when violated

Consider a positive edge triggered D flip flop with input signal X with a setup time of 20 ns and a hold time of 0 ns. What will be the output? C is clock signal with a period of 40 ns....
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Unknown hardware filter/amplifier in setup

I found the following picture on the internet. To be honest, it was the first time I saw such a (filter/amplifier?) plugged in an oscilloscope. Anyone knows which device it is? Thanks in advance ;)
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3 votes
3 answers
3k 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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3 answers
916 views

How does the clock skew affect the design?

What does these statements explain with respect to setup and hold time, I am unable to understand: If combinational logic delay is very short or clock skew is large enough then output of 1st FF would ...
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2 answers
138 views

How to setup a dimmer with 4 terminal [closed]

I have a dimmer with 2 terminals the configuration was easy, now I have tried t replace it, unfortunately the replacement has a different terminals configuration without any indication on each ...
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1 answer
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Servo Motor set up

I want a servo motor to move/rotate a set distance and hold position (bear weight:which for my uses would be minimal) and then when power isn't applied/cut-off it drives back to original position. I'm ...
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2 answers
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Significance of negative setup and hold time

What do you mean by negative setup and hold time i.e what happens if hold time is negative or setup time is negative. Does -ve setup or hold have any advantage ?
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1 answer
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Implementing input capture correctly on a PIC

I'm using a PIC16LF1827 with the XC8 compiler in MPLAB X. I need to store the time between pulses that are coming from an external moisture sensor. The length of time correlates to the measure of ...
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2 answers
3k views

Setup and hold time

Of the setup and hold timing constraints which are to be met to get a stable output, which one is critical in estimating the maximum clock frequency of a circuit?
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1 vote
2 answers
1k views

Setup and hold for positive edge flip flop cascaded with negative edge flip flop

I know the following for two positive edge triggered flip flops in cascade. ...
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1 vote
0 answers
239 views

Not seeing set_address packet using USBTrace

I'm currently exploring the wonderous world of the USB Stack. I'm using a PIC18F2550 and the USB IO example available at www.moty22.co.uk. The code works as expected, but when using USBTrace (or any ...
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2 votes
1 answer
429 views

Need help setting up 7X6 Piranha LED Matrix with Arduino

I need help correctly getting my parts list for a 7X6 matrix that will be part of a electronic outdoor scoreboard. Here is my parts list so far but I am stump whether the arduino is powerful enough ...
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1 answer
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Help building a small solar charging kit

I'm trying to build a cheap light system for an NGO in Kenya, that will allow a family to have light using solar panels. If you're familiar with the new m-kopa service offered by Safaricom the setup I'...
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5 votes
4 answers
2k views

If the output of a D type flip-flop appears immediately on the clock edge, how can the previous output be used?

The way I understand it, the input value (D) of a D type flip-flop appears immediately on the output (Q) of a D type flip when triggered by a positive clock edge. If this is the case, then how can the ...
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4 votes
3 answers
15k views

Hooking up an LCD to Arduino Diagram

Has anyone got a really clear diagram of the way to link up a 16x2 LCD screen to an Arduino? Basically I have an LCD for which the back light is coming on, but I am not getting any words appearing on ...
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2 votes
3 answers
503 views

ultrasonic setup guide

Does anybody know of any online resources that go over the setup of driving ultrasonic transducers, as well as how to receive an ultrasonic echo, and pick it out (for rangefinding)? I found this ...
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