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The error can be simply booked as overconstraining a component definition. Did you make the component yourself? nevertheless, the circuit won't work. V2 must be biased to VCC to allow single-throw operation of the GaAs switch. See Nothing is said about the intended circuit operation. You m
As the FPGA fills up, fitter options to compensate timing problems, e.g. by selecting different routes, dwindle. You probably lose some 100 ps of timing margin. It should be nevertheless possible to fill your FPGA up to 99%. You'll analyze where the timing violations occur and try to restructure the failing paths, e.g. by adding pipeline levels
"User API" refers to the DE1 control panel tool, see the DE1_USB_API in DE1 demonstration projects. Unfortunately, there's no documented user interface provided at the PC side. A serial link over USB Blaster with (partly) documented interface is however available in the NIOS enviroment. Search for keyword jtag_atlantic in Altera Forum. Althou
I believe you compiled the questionary to guide your literature rather than expecting comprehensive replies in this thread? Some simple points can be answered though. The discussed filter types (Bessel, buttwerworth etc.) are defined in frequency domain, obviously the typology of lowpass, highpass, bandpass also refers to it. nevertheless you
1. How to remove the distortion from the Vosc output? Why do you worry this small distortion? Did you already monitor the bridge output voltages? Did you look at the transistor currents? That's a failed attempt to make a woking inverter circuit. nevertheless you get an almost sinusoidal current with squarewave drive, so it sh
Hey, I can't really answer these questions but I think you should refer to the model documents. The thing is other than being different from each other some of them are negative if you noticed. I know that bsim employs negative capacitances for some awesome purpose but I don't really know the basics of it. nevertheless if you actually put a measu
In that case, the module takes care of all the high frequency issues Yes. The RF application suggests this design features nevertheless: - have a continuous ground plane if feasible (4.layer PCB) - calculate correct micro strip geometry for antenna connections - use bypass capacitors according to module specifications What do
For minimal component count, you'll use a microcontroller that can mimic a touch controller with it's analog inputs. E.g. microchip has application notes about this operation. A separate touch controller like NXP PCF8885 may nevertheless achieve lower power consumption. You'll preferably use a hardware timer to generate clean output frequencies.
As for divided clocks, should they be considered as synchronous and be defined in the same clocks group (using set_clock_groups command)? - - - Updated - - - define two virtual clocks each synchronous to ClkA and ClkB respectively and write the input/output delay constraint which respect to eac
GVPrevue usually needs import settings to know about the drill file and embedded tool table scaling which are asked during NC import. I think, the operation is straightforward. At worst case, you may have generated gerber and drill data with different origin, so you must apply an offset to get them matched in the gerber tool. PCB manufacturer
You are probably aware as to which formulas apply. Such as the one for capacitive reactance (when AC is applied). Am I right? I guess you also know the answer is not just a simple matter of running one calculation and saying "that's it". nevertheless that would be a start. What result do you get when you plug in the values?
Can anyone teach me how to construct the PWM controller in the first post without any MCUs? Here is a simulation illustrating the concept of a flyback, with basic control technique. It does not self-regulate. nevertheless it's a start on the path to a design like your
I fear your latest posts are further confusing your intentions. In terms of RF engineering, an antenna is a device with non-zero coupling to far-field. Inductive couplers are designed to receive or generate a magnetic near-field. They are used in a kHz to multiple 10 MHz range to transmit data or power wirelessly. They can be described as AC mag
If you are asking how to connect peripheral devices with SPI interface to a microcontroller, you won't use a buffer in a first order, just connect the SPI signals SCK, MOSI (master-out/slave-in) and MISO (reverse direction) and an individual slave select for each peripheral device. All involved outputs are usually push-pull, not open drain. Peripe
OpenCV offers support for the image formats Windows bitmap (bmp), portable image formats (pbm, pgm, ppm) and Sun raster (sr, ras). With help of plugins (you need to specify to use them if you build yourself the library, nevertheless in the packages we ship present by default) you may also load image formats like JPEG (jpeg, jpg, jpe), JPEG 2000 (jp
Thanks Brian. Does this mean that I will need to pay if I want to use Android on my board? nevertheless, Could you suggest me what is the best way to boot Android on ARM?
The solder joints and traces look all right. nevertheless it would pay to examine for hairline fractures, using a magnifying glass. Two of your capacitors appear to have slight bulges. A large and middle size. (See closeup.) They are prime
Drawing from my own life... * Homemade stroboscope using bright white led's. With a microcontroller you can build in several useful functions: calibration, smooth speed adjustment at all ranges, brightness, 'ON' time. (I made a very simple stroboscope which lacks these functions, but it is fun nevertheless.) * Ceiling fan speed indicator. Mine ha
I agree that liberty shouldn't be derated. nevertheless it's also the name of a Synopsys created library format.
Reviewing this thread, I neither see a clear description (preferably a schematic) how the signals in post #1 have been generated nor a clear question. nevertheless I agree with the general design guidelines by TrickyDicky.