【正文】 is kind of method is suitable when the long interval is made, can also follow the result of this operation ， determine to wake time up in alarm next time temporarily, very flexible and convenient. ② The signal of using the system to be inherent is as reducing the pulse regularly. Use 50Hz worker power make reducing after having a facelift frequently, already omit the timer, gathered the corresponding signal for the phase place which measured the electric current signal at the same time, as Fig. 2 shows. External conditions are restored to the throne Send external condition pulse to and is restored to the throne the end son after having a facelift. To that abovementioned water wheels or the ammeter spend a pulse produced, can use Schmitt39。 Otherwise, cant present forever the mistake of the intact executive program. Monolithic integrated circuit in Ts and Tr period all can effectively the ant jamming, but is best the unnecessary time arrangement in Tr. When the program time is long, when as far as possible the request reduces Tr, may join the differentiating circuit, like chart 1 center C30, R26, D9. Treatment of output end sons (1) Restore to the throne straight pulse During all I/O mouth of onechip puter turn into the high level when restoring to the throne. That is to say output for low pin normally, will according to restore to the throne cycle appear the width for the straight pulse of Tr. This straight pulse will influence the normal output, 2 methods are dealt with: ① Connect in parallel electric capacity suppress , capacity confirm according to Tr time that restore to the throne on the son in end. Reducing Tr can be reduced and connected the electric capacity in parallel. ② It is invalid to design the peripheral circuit into the high level. (2) Faulttolerant Choose the capacity that the output end connects the electric capacity in parallel faulttolerantly and properly, can realize faulttolerant control. Reduced cycle in a certain, because interfered exporting the wrong level. Because the keeping function of electric capacity, can39。 But electricity or manual to restore to the throne when pushing in conformity with zero clearing, is it embody to want when the software is worked outing at the beginning. If calculate time allows, try one39。 Transmit power formally after waiting for 30s. It is startup time in 1s after transmitting power, does not measure the electric current. Start after finishing, if all going well, the location is put normal sign , person who protect restore to the throne cycle enter normal running in the next one. Try 0 that transmits power. 5s is it is it realize to count once restoring to the throne to delay time, restore to the throne time 20ms each time. At having electricity for the first time, make all zero clearing to inside RAM, make it is it time Ts to transmit power not to try =Dormancy after 25. After restoring to the throne, is it have electric pin to have electricity for the first time already, is it is it is it is it time the measuring of Ts to transmit power to try to get to go on to measure next time. If Ts * 0, is it in is it prolong period to transmit power, is it enter dormancy after the 1 to reduce Ts to prove. Act as Ts1 = 0, the course which waited for 30s that should enter and lose electrical power. Just when Ts decreases progressively to 0, make it is it indicate to wait for not to lose electrical power Td =1500. When the procedure is restored to the throne beginning again, measure to Ts =0 but Td * 0, is it is it is it transmit power to try to cross already to indicate, at is it wait for the course of 30s to lose electrical power now. In this way, the whole process is transmitted each other by such these parameters as Tr, Td , Ts etc, go on step by step. Result: Conclusion Antiinterference is an important problem in an electronic design, especially Important in the onechip puter. This is because the onechip puter has procedures to run particularity that flies, the consequence that it is interfered may be the system halted, may send out various kinds of mistakes or illegal movements before the system halted too, make the whole system produce the mortality mistake. So, only guarantee it is not enough yet for onechip puter not to crash, study how to reduce the risk interfered, it can befaulttoierant how is it after and make mistakes. This text is it act as some exploration from two these to try hard, hope these elementary opinions can play some function of casting a brick to attract jade, helpful to everybody。一種技術(shù)在防干擾很多，例如設(shè)立了軟件陷阱，添加看守在狗的門電路等，可以使這個問題比較好的解決，但仍然存在的問題：①看門狗平均和出現(xiàn)的錯誤已經(jīng)和運行一段時間，這不是在某些情況下允許 ?；謴秃蟮膶氉看危瑔纹瑱C進行相應的程序，輸入完畢后及時進行任務休眠，等待復位。這種方法尤其適合用于測量儀器。在休眠，程序停止運行，可以顯示電腦的指標，導致無序程序運行和飛行。這種復位的把關(guān)，定期對狗的電路優(yōu)勢，首先， 改變等待進入休眠狀態(tài)的時間，時間縮短，可能會受到干擾，二是避免死循環(huán)?？梢韵胂駸崴喰D(zhuǎn)時停車溫暖，它是將 CPU 的閑置會是一個秋天的季節(jié)春天和夏天，如果允許其休眠，測量脈搏，不斷有水車輪，抗干擾能力可以大大加強。在恢復到在間隔不進行定期的寶座，但據(jù)證實了該方法的外部條件。 ①使用時鐘信號或?qū)Ｓ眯酒瑫r鐘復位。使用 50 赫茲工人權(quán)力作出減少后煥然一新頻繁，已經(jīng)省略了定時器，該階段收集到的地方在同一時間測量的電流信號。為了實現(xiàn)電子化監(jiān)管的是，可以使用電子電位器，建立上，同一個電腦芯片訂單下限。這是復位循環(huán)，復位信號高級別采取空比非常重要的理性選擇。當程序時間長，時 盡可能降低章的要求。章降低可以減少并行連接的電容量。由于電容量保持功能，使出口仍然不 能在這個周期的改變，有效水平 。復位，并已開始成為正常運行的條件而采取的每一次復位運行方式，它是無法區(qū)分，并有第一次電。有 2 種方法：①分析和判斷后，立即復位這一次，提供該引腳的狀態(tài)根據(jù)需要，在被內(nèi)存②它是最后的最后狀態(tài)下降的時候，這些時候恢復存儲器。 4 個輸出端的引腳，敘述在并行連接電容的治療方法，可以達到一種抗干擾的結(jié)果非常。要注意，測量，給總時間用來顯示是否是它恢復到平時的寶座低電力小于想要，否則永遠無法出席了完整的行政程序的錯誤。達到正常工作狀態(tài)通過一定的運動命令后，如圖電力。發(fā)射功率為 30 秒后正式等待。 5S 是它是否實現(xiàn)計數(shù)一次復位，以拖延時間，復位，每次時間為 20ms。法為 TS 1 = 0，當然這對于 30 多歲，應該進入并失去電力等。 結(jié)果： 結(jié)論反干擾是一種在電子設(shè)計的重要問題，特別是在單芯片計算機的重要。 一、電力電子領(lǐng)域中，快速半導體的出現(xiàn)使高速度，高頻率的開關(guān)切換成為了可能 [1]。在開發(fā) 產(chǎn)品前，建模和仿真是分析電磁兼容性最有效的工具。線路阻抗穩(wěn)定網(wǎng)絡(luò)被用來測量和計算電磁干擾影響的程度 [6]。本論文中的干擾源就是一 個高速的開關(guān)電源。常見的元素，源頭接線，布線為噪聲以及干擾的傳導提供了途徑。在圖 1 中也顯示了干擾源，路徑阻抗，差模電流以及負載阻抗。電力電子轉(zhuǎn)換器可以被用來作為供應網(wǎng)絡(luò)線路之間的噪音源。 各種各