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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.
12 de jun. de 2004 · 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.
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.
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.
16 de jul. de 2021 · Incremental synthesis and implementation is one way. If you don't change a lot of logic between consecutive runs it can significantly speed up the compile time. Note: Some run time improvements come at the expense of quality of results. This is not always the case, but turning off various optimizations will improve the run time of synthesis.
8 de ago. de 2008 · 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.
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 ...
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.
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?)
手感也因此对键盘不太友好。但是很神奇的是,玩GTR2、Live For Speed、rFactor之类畅通无阻的我,用方向盘搞这个愣是玩不转。。。 印象最深的是,跑快了之后,车子的控制变得好可怕。这倒是和真车开上高速的感觉很类似。 NFS Undercover. 剧情最为错综复杂的一代NFS。