【正文】 tore to the throne waking according to external terms to the onechip puter up. After being restored to the throne each time, the onechip puter carries out the corresponding procedure, enters dormancy in time after finishing carrying out the task, wait to be restored to the throne nextly. Have solved abovementioned problems well with this method , and has got better result in the agricultural voltage transformer prehensive protector experiment. Now take 51 serial onechip puters as an example and probe into the concrete principle and implementation method, restored to the throne the signal as the high level. 1. A principle and implementation method Restored to the throne the law regularly unconditionally Use timer Specialpurpose clock chip or other pulse generator, produce signal of restoring to the throne regularly according to interval that set for. This kind of method is especially suitable for the measuring instrument. In not running actually, sample the analog quantity of introduction with A/D converter often, then store showing. This course is very fast, but steady for reading, the data per second are only upgraded 1 2 times, a large amount of time of CPU is used for waiting. Let CPU carry out and enter dormancy directly after the task , restore to the throne and wake by external world up It carry out the next operation, this is to restore to the throne the law regularly In this way can make antiinterference ability strengthen greatly , have 2 points mainly: ① . At the dormancy, procedure stop run, can appear PC indicator disorderly procedure that causes run and fly. Work time in dormancy proportion 1:9, that is to say 1 s have time of s used for measuring, sending off showing, there is time dormancy of , the probability that the procedure is interfered is 1/10 while running at full speed, whole antiinterference ability raise by 10 times. ② Because every 1s is restored to the throne once unconditionally, once present the system halted during a job, can certainly resume when restored to the throne next time. As to only instrument that show, some reading mistake that 1s appear accidentally there is no memory to the next measurement, be could bear , belong to “pass” mistake. This kind is restored to the throne the advantage of dog39。單片集成電路在 TS 和TR 時(shí)期里都可以有效的抗干擾，但最好是不必要的時(shí)間安排 TR?？梢韵胂鬅崴?chē)輪轉(zhuǎn)動(dòng)時(shí)保持溫度， CPU 空閑，它可能會(huì)有高溫情況，如果讓其有休眠情況，并衡量水車(chē)脈沖不間斷，其反干擾能力可以得到大大的加強(qiáng)。② 程序時(shí)常出現(xiàn)很多電路錯(cuò)誤，僅僅是狗的連接環(huán)節(jié)也會(huì)時(shí)常出現(xiàn)無(wú)法識(shí)別的錯(cuò)誤?，F(xiàn)在用 51 系列單片機(jī)作為一個(gè)例子，并具體探討高電平復(fù)位的原理和實(shí)施方法。該復(fù)位無(wú)規(guī)律間隔出現(xiàn)，但 它被證實(shí)了是有根據(jù)的外部條件方法。復(fù)位造成一開(kāi)始正常運(yùn)行的狀況，對(duì)每個(gè)時(shí)間而采用的復(fù)位方法 來(lái)說(shuō)，它是無(wú)法識(shí)別第一次電脈沖的。 Can use the clock chips of X1126 ,etc too