【正文】
After the high level, the onechip puter begins to hold the conduct procedure. That is to say, are restored to the throne and suitable for the time that the procedure carries out during the low level Td of the signal, this time should be greater than the execution cycle of the procedure each time. It is restore to the throne cycle and restore to the throne high level of signal take empty than very much important to choose rationally. As to simple to show instrument, restore to the throne cycle determine data break cycle, low electricity is it measure, hence over all time shown to greater than to want at ordinary times。 (2)Procedure appear circulation mistake very much sometimes, but just guard the gate dog control link include and enter, adopt and guard the gate as to such a mistake dog unable to discern。 結(jié)果: 反干擾是電子設(shè)計(jì)中的重要問題,尤其是在單片機(jī)中。這是復(fù)位周期的復(fù)位高電平采取占空比的非常重要的選擇理由。這種方法適用于間隔時(shí)間比較長(zhǎng)的情況下,還可以按照對(duì)這次行動(dòng)結(jié)果,快速確定下次喚醒的時(shí)間,非常靈活方便②信號(hào)的固定使用制度是為降低脈沖定時(shí)性。首先,改工作到休眠狀態(tài)的時(shí)間,并有可能干預(yù),二是可以避免發(fā)生該 看 狗門電路的控制導(dǎo)致接口連接不暢。在這種運(yùn)行中,模擬量通過 A/D 轉(zhuǎn)換器后并將其存入顯示。因?yàn)樗邢到y(tǒng)的停頓,所以運(yùn)行程序有致命缺陷在許多重要場(chǎng)合受到限制。 關(guān)鍵詞: 單片機(jī)復(fù)位,休眠,反干擾 前言: 隨著微電子技術(shù)迅速發(fā)展,單片機(jī)性能也得到迅速提高。現(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。②因?yàn)槭敲棵氲膹?fù)位,一旦無條件或目前的工作運(yùn)行停止,下一個(gè)周期一定能夠?qū)崿F(xiàn)恢復(fù)復(fù)位。該復(fù)位無規(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。為了實(shí)現(xiàn)電子化即規(guī)范 ,可以使用電子電氣設(shè)備的潛 力, 也可以通過常規(guī)單片機(jī)來制定上限下限。復(fù)位造成一開始正常運(yùn)行的狀況 ,對(duì)每個(gè)時(shí)間而釆用的復(fù)位方法來說,它是無法識(shí)別第一次電脈沖的。 附件 2:外文原文 SingleChip Microputer dormancy puting reset and the antiinterference ability is perfect Abstract: Introduce a kind of dormancy of using restore to the throne in the operation way and improve the antiinterference ability method of the onechip puter,Analyse its scope of application, provide and use the circuit concretely。 Can use the clock chips of X1126, etc, wake CPU up with the alarm signal after setting up warning time. This 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。 Hope to every colleague explore together, improve our design level to