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K0303028

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Ðåìîíò êîìïüþòåðíûõ ìûøåé
Ñåãîäíÿ ëþáîé êîìïüþòåð êîìïëåêòóåòñÿ ìàíèïóëÿòîðîì òèïà “ìûøü”. Ìûøü ìîæåò áûòü ïîäêëþ÷åíà ê ÏÊ ïîñðåäñòâîì ïîðòîâ RS-232, PS/2 èëè ÈÊ. Ýòà ñòàòüÿ ïîñâÿùåíà âîïðîñàì ðåìîíòà ìûøåé, ïîäêëþ÷àåìûõ ê RS-232 ïîðòó êîìïüþòåðà, êîòîðûì óêîìïëåêòîâàíî îãðîìíîå êîëè÷åñòâî êîìïüþòåðîâ, îñîáåííî ñòàðîãî ïàðêà.

ûøü ïðåäñòàâëÿåò ñîáîé äâóõìåðíûé àíàëîãîâî-öèôðîâîé ìàíèïóëÿòîð. Ïðè ðàáîòå ïèòàíèå íà íåå ïîäàåòñÿ ñ RS-232 ïîðòà ïî ñèãíàëüíûì öåïÿì, óñòàíîâëåííûì â ñîñòîÿíèå “0”. Óðîâíþ “0” â RS-232 ñî îòâåòñòâóåò íàïðÿæåíèå íà ñèãíàëüíûõ öåïÿõ âåëè÷èíîé 3…15 Â. Ïðè äâèæåíèè ìûøè, íàæàòèè è îòïóñêàíèè êíîïîê, åå ìèêðîêîíòðîëëåð îáðàáàòûâàåò ýòè ñîáûòèÿ è ïîñûëàåò íà êîìïüþòåð ñåðèþ áàéòîâ î ïðîèñøåäøåì ñîáûòèè. Ïîñûëàåìûå áàéòû âûçûâàþò àïïàðàòíîå ïðåðûâàíèå. Åãî îáðàáîòêîé çàíèìàåòñÿ äðàéâåð ìûøè. Ëþáàÿ ïðîãðàììà, èñïîëüçóþùàÿ ìûøü îáðàùàåòñÿ íåïîñðåäñòâåííî ê Ðèñ. 1. Ñõåìà ìûøè Easy Mouse (Êèòàé) åå äðàéâåðó. Íà ðèñ. 1–5 èçîáðàæåíû ïðèíöèïèàëüíûå ñõåìû ïîïóëÿðíûõ ñðåäè îòå÷åñòâåííûõ ïîëüçîâàòåëåé ìûøåé. Äàò÷èêè âåðòèêàëüíîãî è ãîðèçîíòàëüíîãî ïåðåìåùåíèÿ ïðåäñòàâëÿþò ñîáîé ïàðû “ÈÊ èçëó÷àòåëü — ÈÊ ôîòîïðèåìíèê”. Îíè îáîçíà÷åíû êàê “H. SHI.T” (ãîðèçîíòàëüíûé ñäâèã) è “V. SHI.T” (âåðòèêàëüíûé ñäâèã). Ïðè ïåðåìåùåíèè ìûøè åå øàðèê âðàùàåòñÿ. Ýòî âðàùåíèå ïåðåäàåòñÿ íà äâà êîëåñèêà-ðåøåòêè, ïåðåêðûâàþùèå ñïèöàìè ýòîé ðåøåòêè ÈÊ ëó÷ îò èç


























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