哪位高人帮我翻译一下？谢了！（中翻英）

In the digital circuit theory, the succession logic circuit is referselectric circuit any time the stable state output not only to bedecided by the current input, but also the condition which forms withprevious time input concerns. This is opposite with the combinatorylogic electric circuit, the combinatory logic output only can with thepresent input one kind of functional relation. In other words, thesuccession logic has stores up the part (memory) the canned data, butthe combinatory logic does not have. The succession logic circuit may divide into the synchronizedsuccession logic circuit and the asynchronous succession logiccircuit. In synchronized succession logic circuit all storage element all inunder clock pulse CP common control, takes the storage element withthe trigger. Nearly now all successions logic all is "the synchronizedlogic", some "the clock" the signal, all internal memories (internalcondition) only can in the clock border time change. In the successionlogic the most basic storage part is a trigger. The synchronized logic most main merit is it is very simple. In eachelectric circuit operation must have in the fixed gap to completebetween the clock two pulses, is called "the clock cycle". Underrefers has in this condition satisfies (did not consider other certaindetails), the electric circuit can guarantee is reliable. The synchronized logic also has two main characteristics: 1. clocks signals must have to distribute on the electric circuit eachtrigger. But the clock usually all is the high-frequency signal, thiscan cause the power the consumption, also has the quantity of heat.Even if each trigger has not handled any matter, also can consume thefew energies, therefore can cause the waste heat production. 2. biggest possible clocks frequencies are the slowest logical waydecided by the electric circuit in, also is the essential way. Themeaning is said each logical the operation, from is simplest complexto, all must in each time arteries cycle complete. One kind uses forto eliminate this kind of limit the method, is separates into thecomplex operation several simple operations, this kind of technologyis called "the assembly line". This kind of technology inmicroprocessor unusual remarkableness, uses for to help the promotionnowadays the processor clock frequency. The asynchronous succession logic circuit most basic storage part isthe latch, the latch may change its condition in any time, accordingto other latch signals changes, their new condition can produce.Asynchronous circuit complex along with logical gate increase, butcomplex also fast increase, therefore they majority of merely use inthe young application. However, the computer assistance graduallydesigns the tool to be allowed to simplify these work, permits a morecomplex design. My graduation thesis topic is "based on the ARM+FPGA Movement Controlcard Research", under I to discuss a document simple introduction, theclassical computer numerical control system (CNC, ComputerizedNumerical Control) generally uses the simulation voltage outputactuation servo unit, the computer simulation connection partiallinear discrete component many, the system space huge, the antijammingability is worse. Along with the digital circuit technology vigorousdevelopment, studies the entire digitized numerical control systemoneself after to become the inevitable tendency. This topic research uses the scene programmable gate array (FPGA,Field Programmable Gate Array) the integration rate high, the volumesmall, the low power loss, the redundant reliability, maycharacteristic and so on on-line revision, as well as using Verilogthe HDL language programming method, the design nimble, the revisionconvenient, the probability is good and so on the characteristic,designs the numerical control system the movement control chip. Thischip is the movement control card core are partial, can simultaneouslycontrol 4 servometers or step enters the motor the movement, it by thepulse string form output, can and step enters the motor to theservometer to carry on the position control and the speed control. The main work includes: (1) carries on the analysis to the numericalcontrol system research present situation, the determinationdevelopment pattern. (2) completes the overall system the hardwarecircuit design, the key point is the FPGA module design, theconfirmation, the revision and the stereotypia. (3) conducts theresearch to the S control curve, analyzes its type, determines itsfunction expression. (4) carries on the debugging to the main module,has produced the experimental result. (5) has carried on the summaryto the research content, has made the forecast to the movement controltechnology development. Has several technologies in the design processis the cost design key: Actuation pulse width and speed precision andfree integer frequency division technology and so on The design probably needs half year about the time tocomplete, in this half year, I has learned very many knowledge: Canhave the clear understanding to the NC axis control unit, can learn touse the EDA electron design tool, and could grasp FPGA and the VHDLknowledge, had in the independent development the small scaleintegration electric circuit ability, also had the profoundunderstanding to the large scale integrated circuit performancehistory.