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114 Threads found on edaboard.com: Forth
Hi all, I realised that my approach to HDL development is very inefficient. I am still uncertain on how some of the constructs will be synthesized and have to go back and forth between the Synthesis tool ( VIVADO ) . But waiting for VIVADO or ISE to synthesise my design each time is painful. I am wondering if anyone who is in an environment w
Hi I'm looking for a pre-built x86 board with the following rough specs: x86 - i3 ish level of processing inc Floating point (32 bit is fine) low power (board powered via USB) ram up to 64MB flash or rom for application on boot up. 2x USB 1 for input other for output dedicated capable of running forth ideally or linux if I must programmable via w
I'm thinking of an earphone used with old-fashioned pocket transistor radios. A coil next to a steel diaphragm, 1/2 inch diam. (Maybe the diaphragm is magnetized, one face north, the other face south.) Run AC through the coil. It moves the diaphragm back and forth. The sound travels to a tiny hole at the other end. To do sonic welding, I think wil
Back and forth (load/unload) switched capacitors can be used to replace resistors in analog systems (e.g. filters).
Does that mean i measure S21 since i use two different terminal/port? no. antenna is single port component. an amplifier and filter is dual port. whatever device (antenna, filter or amplifier) which needs two network analyzer ports to connect is two port and so forth. Did you use the same antenna for both signal generator and spectrum analyzer? A
Hello House, How is USSD menu implemented. for example, when you dial *123# from a phone, how does the ussd application get to responds with a m menu like "Welcome to MyService 1.Balance enquiry 2.Sport news 3.Weahther Report and so on and so forth." I have already implemented the handlers for various command such as Bind, Submit_sm, Data_sm
Your graph doesn't say which trace is which, but I'd assume the square blue trace is input since it's ideal looking. Then the other, presumably output, says to me that you've got no ground connection and no load, and are just shuttling input charge back and forth to the output through some device that's attached to +1.2V and leaking enough to set
The problem is probably more a system design problem. There are a few poor design practices in the code. 1. You generate clocks with logic. Instead you should generate clock enable signals and use the same system clock all over. 2. Using buttons without debouncing them. When you press a button it actually bounces back and forth between 0 and 1 go
Hi, I'm trying to use an if else statement in microC to toggle an LCD screen between two states. Unfortunately I cannot get this to work, The code under the if statement cycles between 3 different messages and when the button tied to RB7 makes RB7 go low, it's supposed to make the screen display the string "Screen Toggled". What is hap
In a recent thread you asked if the oscillator transistor in a radio transmitter mechanically oscillates! I answered that the transistor is in an oscillator circuit with no moving parts. I said the electrons go back and forth. Now you are asking about how does a radio transmitter work, but it is obvious that you have not looked in books or in G
Unless you have a round room, I don't know why you would have the bot run in a spiral; do YOU vacuum the floor in spirals? Why not run it like a Zamboni or a lawn mower? Have it first find a corner and then just go back and forth in rows.
With DC current, the electrons travel around the loop in one direction. With AC current, the electrons alternate back and forth in the loop.
Do you mean, you want to implement a motion scheme for the existing mechanics? It's now moving continuously forward but want to drive it forth and back? Besides motor and drive electronics specification, you need also to check that the mechanical setup is prepared for the inertial forces involved with this operation mode. Regarding qualificat
hii, i am designing an application in which i need to turn motor shaft BACK AND forth from 0 degree to around 190 degree (any fixed angle between 180-210) at HIGH SPEED AS POSSIBLE...which motor would be best in terms of Speed??..DC,SERVO,STEPPER??. angle accuracy is not necessary..jst need little more than 180 degree...help me.
start v2=0 end v2 is computed using dc voltage divider equation inbetween, square wave pulses travel back and forth on the transmission line, with diminishing amplitude on each bounce. The reflection coef at load is simple to calculate, as is the source. Just be mindful of possible sign change at one of the ends of the line!
could you specify on the graph which belongs to S11,S21 and so forth. thanks.
You want to send SPI data back and forth between two points, right? I'm afraid I don't understand your question. The fact that the SPI data represents audio is irrelevant. Maybe you can give us a better description of what you're trying to do.
We have one of the attached Copley DC Servo Amplifiers. It is not functioning and we need to find a replacement. Anyone can suggest a proper replacement? It drives a DC motor (90-110V DC and 20A). Motor turns back and forth from a "H" power bridge using a triangle shape current when up and down buttons pressed. Feedbacks are motor speed taco signa
Winding back and forth, no cross-windings as far as possible.
What is the best way to unsolder a bunch of 0.100" header strips and DIP IC's without damaging the PCB substrate/lifting pads?? I have tried solder braid and I can get 90% of the bulk off but the small amount left can can be removed. I have tried hot air rework but on 20+ pins you need to sweep back and forth and the PCB heats up to much before
All and all it depends on your interest. It composes by various of CAD drawings, fabrication, material science, control system, electronics so and so forth. I think it is worth it. :)
flashforth is a forth compiler for the PIC18 24 DSP and PIC 30 series chips. I'm starting a new project and am considering using it but I'd like some impartial feedback from other users. (I'm familiar with forth - I just need feedback on this particular implementation if possible) tia
Hi there! I'm working on a home-made pingpong trainer. The last thing I need is to control my servomotor in that way that it can rotate 90° back and forth several times. Being completely new to electronics, I had no idea where to start. I've gathered information and the needed stuff. My servomotor is a TowerPro MG995, my microcontroller is a
If I have a resonating LC circuit that is tuned to 50 Ohms using an antenna tuner (because my amplifier's output is designed for 50 ohm output), the L is producing an alternating magnetic field and the two reactive components are exchanging reactive power back and forth. But in this case my L is also an antenna (in my wireless power transfer experi
That generally call routing grid, to match the pin std cell position. Historically, the backend designer should align this grid function of the std cell, now the tool are generally able to analyze the std cell pins positions. The magma router has a routing grid, as other routing tool, plus a sub-routing that is the forth of the routing grid to prov
It's common for the DC power jack to be vulnerable to physical stress. Hairline cracks can develop in its solder joints. These might be okay when cool, allowing it to power up. But then as components heat up the connection goes bad. Just speculating. Does the power light show the unit is going back and forth between AC power and battery power?
It looks as though you are sending pulses through capacitors. It is common to see spikes develop, especially when pulses go back and forth, stepping up the volt levels. This simulation demonstrates the effect. Notice the spike is higher than the supply level. obrazki.elektro
Hi, everyone! Please take a look at 3 different names and motto for the company. How it sounds in your language, is there a bad association when you hear it and so forth. 1) KineTech - run you business 2) AntLabs - the code without bugs 3) Beagle Soft - it works. Thanks in advance!
This schematic is a barebones method. The DAC must be able to both source and sink current. It cannot drive too great a load. Therefore it may need for you to install a buffer between the output and the next stage. The green trace is volt level. The yellow trace shows current back and forth at the DAC output pin. images.elektro
Hello, I am trying to wire a radio that I am building. It is a 40M direct conversion transceiver. All of the components that get switched back and forth for transmit and receive, such as the LO and the antenna and the audio amp, are single ended. Is there a great potential of causeing the end result to not work at all or work very badly if I
Hi All, Metals are defined in the CMOS process. Metal1 verticiale Metal2 horizontal and so forth. As we move in lower process technology, the rules regarding routing of metal in non defined direction becomes stringent. for example you in 45nm technology you can route narrow metal in horizontal, also it can be routed only to small distanc
Radio-over-strand (RoF) engineering has numerous profits for example more substantial transmission capacity, diminished capacity devouring and so forth. that has made it a magnetic implementation alternative for different correspondence frameworks. Orthogonal Recurrence Division Multiplexing (OFDM) is viewed as the regulation method for destiny bro
Low freq. antennas are easy to tune up. But you need some sort of signal source and some sort of test broadband antenna/detector. You tune the frequency back and forth, and maximize the detected signal by tuning the capacitances. You can't do much without at least that basic equipment.
At least forth order LP with a 3dB cutoff at 1/2 of you effective sampling frequency. Google for active LP filters
The current goes back and forth. There is no net DC current.
Well, I have been banging around the Internet learning (well I thought I was), about diodes, and protection and so forth; and I am pretty sure I have just confused myself. Could someone check out this schematic I drew, check some of the comments, and tell me if I am about to blow something up!? 67472 I am particular
hi everybody: if i have 10 mobile phones & i connected the first to the second & the third to the forth & so on(pairs). why they dont interface with each other? is it because of synchronization? & what is the maximum no. of phones can i connect by bluetooth at the same time(pairs) without interferance. thanks.
I'm looking to connect a TI 2000 series dev board up with a Xilinx spartan fpga for back and forth communications over the 16bit parallel bus. So I'll be connecting data bus, address bus, chip select, read and write. All 3.3v signals. Each of these board have their own (i believe isolated) power supply. The Xilinx gets 12V ATX in and the TI get 5V
Yes i want to use 2 accuators. Left and right, and back and forth. As for the clutch it would be manually pressed triggering a push button switch to select a new gear. Hello This way it will lead to mis-match problem between the clutch and gear shifting. Instead if the manual clutch is repla
How can I cancel count down timer 1 by triggering timer 2 & vise versa? I'm trying to operate a hyd. Cylinder back & forth with solenoids 1 & 2 My timers are set at 7 seconds.
I've found that it is also helpful to drop as many keywords as possible. Some companies (primarily large companies) screen resumes by counting how many keywords you use in your resume (I wish I was kidding). So if you've worked with RS-485, mention it. If you are familiar with PCI, mention it. So on and so forth. Also, if you can get your resume p
i'm working now with FEMM 4.2. i have a Quader of steel and a magnetical Sensor. I would like to move the steel rod so that it breaks forth as possible closer to the magnetical sensor and to its original position and though going back periodically. Does anyone have any idea how can I do that?
16f84A, 20Mhz, hello basically transmission has 2 wires wire1 wire 2 First 1 1 Second 0 1 Third 0 0 forth 1 0 as you can see above depending on which wire has 12v+ the gear is selected i have 2 inputs porta's pin 0 and 1 2 outputs portb's 0 and 1 this is my code so far, i
i have a project turning a robot that walks, into one that uses wheels, i need a part that will turn the leg motors that go back and forth into ones that go in one direction constantly. i cant make them go in one diirection by themselves, its complicated. is there a part/component that will do this? i seem to remember the
Hello, I am looking for some method to send data back and forth from ML501 and PC. Any help would be appreciated Kianoosh
hi, in the last few days, i draw a PCB of 4 layers using Cadence 16.2. The first layer is named top, conductor type. The forth layer is named bottom, plane type. after generating artwork file, there are no pad in the bottom layer. also, in setup-->cross-section, after changing the type of bottom layer to plane, the subclass name "bottom"
You should try to run your simulations with mismatch applied only to pairs of devices, starting from the input pair, moving to the cross-coupled nmos, pmos ans so forth. This will give you an idea about who is biggest contributor to your offset. Consult your design manual to check for the area vs. mismatch for your technology.
I'm doing some experiments with 40x7 led matrix display and I'm trying to built effect where dots are switch on randomly to form letters. Say, first column has to be 0b11111110. First pass column looks like 0b00000000 Second pass 0b00001010 Third pass 0b10001110 forth pass 0b10111110 fifth pass 0b11111110 Every column must have own rando
The feedback clock from DCO divider and REF clock are phase locked when in lock situation - so the FB clock edges are moving back and forth around REF clock edges. This is the what PLL is suppose to behave. You can either look at the PFD/integrator output or look at the FB clock frequency in certain time window to declare if the lock situation has
what are your requirements.Frequency of operation,bandwidth,Gain so on so forth. S.Mohammed.