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  1. 15 de feb. de 2004 · If you can post your source and dsn file we'll have a look. Typically this happens when you externally wire a crystal etc. - this introduces an extremely high speed oscillator which bottlenecks the simulation and is completely superfluous anyway. Clock frequency is specified as a property of the microcontroller device.

  2. hspice speed up simulation Besides fast options, autostop can help you as well. In addition, increase step for transient, AC,DC will help when too small is not necessary. Of course employing multi-cpu and use multi-thread job can make simulation fast dramatically.

  3. 28 de dic. de 2011 · 37,988. You need a high speed op amp with some current output capability (at least 100 mA). You also need to protect the varactor from inadvertent burn-out if forward biased. So there are two basic circuits: The single ended rail-to-rail op amp can not blow out the diode with a forward bias, so you can hook it up directly.

  4. This sounds as though you want to examine 5 seconds operation of a circuit running at 1 GHz. It's an example of mixing micro and macro events. It becomes mismatched and unwieldy in simulation. (It is not a problem with real electronics, of course.) Consider trying a longer timestep. Also try a slower switching rate in your simulated circuit.

  5. 3 de nov. de 2018 · Assuming typical speed in FR4 is 15 cm / ns (0.015 cm / ps), I am trying to calculate the time to travel 400 mil (1.016 cm). I am not sure if the following calculation is correct. Speed = Distance x Time. Time = Speed / Distance. Time = 0.015 / 1.016 = 0.0148 ps.

  6. 20 de jul. de 2012 · You always need the 2 metrics (Test Coverage for SA and TC for Transition faults). TF patterns detect slow-to-rise and slow-to-fall faults while SA pattern detect stuck and open faults. @speed fault testting require 1 launch and 1 captur cyclee to be tested. For @stuckat, 1 capture cycle is often sufficient to detect a fault (unless there are ...

  7. 7 de jun. de 2020 · The max. speed depends much of what do you need, and how you will implement it. 500 MHz is not easy to reach, if you have a complex design. You can write a test code and synthesize it to have an idea. I would recommend to have a look on Artix 7 and Kintex 7. But you told no project requirement beside speed (logic? price?)

  8. 1 de ago. de 2007 · 9,926. clockspeed. #define F_CPU is for defining clock speed of the processor. While your micro is running at 1MHz and you are defining 16MHz make the programme run 16times slower. Nandhu. N. Nahian. Points: 2. Helpful Answer Positive Rating.

  9. 14 de mar. de 2006 · 1,298. Activity points. 7,491. Re: SPEED GRADE. The lower the -X the faster the FPGA. The speed is specified in terms of the tpd (pin-to-pin delay) parameter in the FPGA datasheet. This affects the maximum operating frequency of your design in that particular FPGA. Jun 26, 2006. #3.

  10. 3 de feb. de 2015 · For a maximum speed, I'm writing on sector. The problem is that the SPI doesn't reach the max speed allowed. In the data sheet the max speed is 25 Mbps, so about 3 MBps (the SD is a SDHC with a min speed of 10 MBps ). In mikroC, I set PBCLK=SYSCLK, and divider=8, where SPI_clock=PBCLK/divider.

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