Kulakwitsa kofala 17: Zizindikiro zamabasi izi zonse zimakokedwa ndi zotsutsa, kotero ndimamasuka.

Yankho labwino: Pali zifukwa zambiri zomwe ma sign amafunikira kukokera mmwamba ndi pansi, koma si onse omwe amafunikira kukokedwa. Chotsutsa chokoka ndi chotsitsa chimakoka chizindikiro chosavuta cholowera, ndipo zamakono ndi zosakwana makumi a ma microamperes, koma pamene chizindikiro choyendetsedwa chikoka, chapano chidzafika pamlingo wa milliamp. Dongosolo lapano nthawi zambiri limakhala ndi ma 32 bits adilesi iliyonse, ndipo pakhoza kukhala Ngati basi yakutali ya 244/245 ndi ma siginecha ena akwezedwa, ma watts ochepa amagetsi adzagwiritsidwa ntchito pazotsutsa izi (musagwiritse ntchito lingaliro la Masenti 80 pa kilowatt-ola kuti athetse ma watts ochepawa akugwiritsa ntchito mphamvu, chifukwa chake ndi pansi Onani).

Kulakwitsa kofala 18: Dongosolo lathu limayendetsedwa ndi 220V, kotero sitiyenera kusamala za kugwiritsa ntchito mphamvu.

Yankho labwino: mapangidwe otsika mphamvu sikuti amangopulumutsa mphamvu, komanso kuchepetsa mtengo wa ma modules amagetsi ndi machitidwe oziziritsa, komanso kuchepetsa kusokoneza kwa ma radiation a electromagnetic ndi phokoso lamoto chifukwa cha kuchepa kwamakono. Pamene kutentha kwa chipangizo kumachepa, moyo wa chipangizocho umakulitsidwa mofanana (kutentha kwa chipangizo cha semiconductor kumawonjezeka ndi madigiri 10, ndipo moyo umafupikitsidwa ndi theka). Kugwiritsa ntchito mphamvu kuyenera kuganiziridwa nthawi iliyonse.

Kulakwitsa kofala 19: Kugwiritsa ntchito mphamvu kwa tchipisi tating'onoting'ono ndikotsika kwambiri, musadandaule nazo.

Yankho labwino: Ndizovuta kudziwa kugwiritsa ntchito mphamvu kwa chipangizo chamkati osati chovuta kwambiri. Zimatsimikiziridwa makamaka ndi panopa pa pini. ABT16244 imadya zosakwana 1 mA popanda katundu, koma chizindikiro chake ndi pini iliyonse. Ikhoza kuyendetsa katundu wa 60 mA (monga kufanana ndi kukana kwa makumi a ohms), ndiko kuti, mphamvu yogwiritsira ntchito mphamvu zambiri imatha kufika 60 * 16 = 960mA. Zoonadi, mphamvu yokhayo yamagetsi ndiyo yaikulu kwambiri, ndipo kutentha kumagwera pa katundu.

Kulakwitsa kofala 20: Momwe mungathanirane ndi madoko a I / O osagwiritsidwa ntchito a CPU ndi FPGA? Mutha kuzisiya zilibe kanthu ndikukambirana pambuyo pake.

Yankho labwino: Ngati madoko a I/O osagwiritsidwa ntchito atasiyidwa akuyandama, amatha kukhala ndi ma siginecha olowera mobwerezabwereza ndikusokoneza pang'ono kuchokera kudziko lakunja, ndipo kugwiritsa ntchito mphamvu kwa zida za MOS kumadalira kuchuluka kwa zopindika pazipata. Ngati itakokedwa, pini iliyonse idzakhalanso ndi microampere panopa, kotero njira yabwino ndikuyiyika ngati yotuluka (zowona, palibe zizindikiro zina zoyendetsa galimoto zomwe zingagwirizane ndi kunja).

Kulakwitsa Kwambiri 21: Pali zitseko zambiri zomwe zatsala pa FPGA iyi, kotero mutha kuzigwiritsa ntchito.

Yankho labwino: Kugwiritsa ntchito mphamvu kwa FGPA kumayenderana ndi kuchuluka kwa ma flip-flops omwe amagwiritsidwa ntchito komanso kuchuluka kwa zopindika, kotero kugwiritsa ntchito mphamvu kwamtundu womwewo wa FPGA pamabwalo osiyanasiyana komanso nthawi zosiyanasiyana kumatha kukhala kosiyana nthawi 100. Kuchepetsa kuchuluka kwa ma flip-flops pakuthamanga kwambiri ndi njira yofunikira yochepetsera kugwiritsa ntchito mphamvu kwa FPGA.

Kulakwitsa kofala 22: Kukumbukira kuli ndi zizindikiro zambiri zowongolera. Gulu langa limangofunika kugwiritsa ntchito ma sign a OE ndi WE. Chosankhidwa cha chip chiyenera kukhazikitsidwa, kuti deta ituluke mofulumira kwambiri panthawi yowerenga.

Yankho labwino: Kugwiritsa ntchito mphamvu kwa kukumbukira zambiri pamene kusankha chip kuli koyenera (mosasamala za OE ndi WE) kudzakhala kokulirapo kuwirikiza ka 100 kuposa pomwe kusankha kwa chip kuli kosayenera. Choncho, CS iyenera kugwiritsidwa ntchito kulamulira chip momwe mungathere, ndipo zofunikira zina ziyenera kukwaniritsidwa. N'zotheka kufupikitsa m'lifupi chip kusankha zimachitika.

Kulakwitsa kofala 23: Kuchepetsa kugwiritsa ntchito mphamvu ndi ntchito ya ogwira ntchito pa hardware, ndipo sikukhudzana ndi mapulogalamu.

Yankho labwino: Hardware ndi gawo chabe, koma pulogalamuyo ndi yomwe imachita. Kufikira pafupifupi chip chilichonse m'basi ndi kutembenuka kwa chizindikiro chilichonse kumayendetsedwa ndi pulogalamuyo. Ngati pulogalamuyo imatha kuchepetsa kuchuluka kwa makumbukidwe akunja (pogwiritsa ntchito zosintha zambiri zolembetsa, Kugwiritsa ntchito kwambiri CACHE mkati, ndi zina zambiri), kuyankha munthawi yake zosokoneza (zosokoneza nthawi zambiri zimakhala zotsika kwambiri ndi zokoka), ndi zina. miyeso yeniyeni ya matabwa enieni onse athandizira kwambiri kuchepetsa kugwiritsa ntchito mphamvu. Kuti bolodi itembenuke bwino, hardware ndi mapulogalamu ayenera kugwidwa ndi manja onse!

Kulakwitsa kofala 24: Chifukwa chiyani zizindikirozi zikupitilira? Malingana ngati machesi ali abwino, akhoza kuthetsedwa.

Yankho labwino: Kupatula zizindikiro zochepa (monga 100BASE-T, CML), pali overshoot. Malingana ngati sichili chachikulu kwambiri, sichifunikira kuti chifanane. Ngakhale zitafanana, sizikugwirizana ndi zabwino kwambiri. Mwachitsanzo, kulephera kwa TTL kumakhala kosakwana 50 ohms, ndipo ena mpaka 20 ohms. Ngati kutsutsa kwakukulu kofananirako kukugwiritsidwa ntchito, zamakono zidzakhala zazikulu kwambiri, kugwiritsa ntchito mphamvu kudzakhala kosavomerezeka, ndipo matalikidwe a chizindikiro adzakhala ochepa kwambiri kuti asagwiritsidwe ntchito. Kupatula apo, kutulutsa kwamphamvu kwa siginecha yonse mukatulutsa mulingo wapamwamba ndikutulutsa otsika sikufanana, komanso ndizotheka kukwaniritsa kufanana kwathunthu. Choncho, kufanana kwa TTL, LVDS, 422 ndi zizindikiro zina kungakhale kovomerezeka malinga ngati overshoot ikukwaniritsidwa.