Kutumva nabi 1: Kuzigama
Ikosa risanzwe 1: Ni irihe bara ryerekana urumuri rugomba guhitamo? Njye kubwanjye nkunda ubururu, hitamo rero.
Igisubizo cyiza: Ku matara yerekana ku isoko, umutuku, icyatsi, umuhondo, orange, nibindi, hatitawe ku bunini (munsi ya 5MM) no gupakira, bimaze imyaka mirongo bikuze, bityo igiciro muri rusange kiri munsi yamafaranga 50. Itara ryerekana ubururu ryahimbwe mumyaka itatu cyangwa ine ishize. Ikoranabuhanga rikuze no gutanga ituze birakennye cyane, igiciro rero cyikubye inshuro enye cyangwa eshanu. Niba utegura ibara ryerekana ibara ridafite ibisabwa bidasanzwe, ntuhitemo ubururu. Kugeza ubu, urumuri rwerekana ubururu rukoreshwa gusa mubihe bidashobora gusimburwa nandi mabara, nko kwerekana ibimenyetso bya videwo.
Ikosa risanzwe 2: Aba barwanya-gukurura / gukurura-barwanya ibintu bisa nkaho ntacyo bivuze cyane nagaciro kabo ko guhangana. Hitamo gusa integer 5K.
Igisubizo cyiza: Mubyukuri, nta gaciro ko kurwanya 5K ku isoko. Iyegereye ni 4.99K (ubunyangamugayo 1%), ikurikirwa na 5.1K (ubunyangamugayo 5%). Igiciro cyibiciro cyikubye inshuro 4 kurenza icya 4.7K hamwe na 20% byukuri. Inshuro 2. Agaciro ko guhangana na 20% kurwanya neza bifite ubwoko 1, 1.5, 2.2, 3.3, 4.7, 6.8 (harimo umubare wuzuye wa 10); bihuye, 20% capacitor yuzuye nayo ifite gusa agaciro kavuzwe haruguru. Kubarwanya na capacator, niba uhisemo agaciro katari ubu bwoko, ugomba gukoresha ubunyangamugayo buhanitse, kandi ikiguzi cyikubye kabiri. Niba ibisabwa byukuri atari binini, iyi ni imyanda ihenze. Mubyongeyeho, ubwiza bwurwanya nabwo ni ngombwa cyane. Rimwe na rimwe, itsinda ryabarwanya rito rirahagije kugirango basenye umushinga. Birasabwa ko ubigura mububiko bwikorera bwonyine nka Lichuang Mall.
Ikosa risanzwe 3: 74XX inzitizi yumuryango irashobora gukoreshwa kuriyi logique, ariko iranduye cyane, koresha rero CPLD, bisa nkaho ari hejuru cyane.
Igisubizo cyiza: Inzira ya 74XX yumuzunguruko ni amafaranga make, kandi CPLD byibuze amadorari icumi (GAL / PAL ni amadorari make, ariko ntibisabwa), igiciro cyiyongereye inshuro nyinshi, tutibagiwe, ni yagarutse kumusaruro, inyandiko, nibindi Ongeraho inshuro nyinshi akazi. Mugihe cyo kutagira ingaruka kumikorere, biragaragara ko ari byiza gukoresha 74XX hamwe nigiciro cyinshi.
Ikosa risanzwe 4: Ibishushanyo mbonera bya PCB byiyi nama ntabwo biri hejuru, koresha gusa insinga yoroheje hanyuma uhite ubitegura.
Igisubizo cyiza: Gukoresha ibyuma byikora byanze bikunze bizafata umwanya munini wa PCB, kandi icyarimwe bizatanga umusaruro wikubye inshuro nyinshi kuruta gukoresha intoki. Mu gice kinini cyibicuruzwa, abakora PCB bafite ibitekerezo byingenzi mubijyanye n'ubugari bwumurongo numubare wa vias mubijyanye nigiciro. , Bifite ingaruka ku musaruro wa PCB n'umubare w'imyitozo ikoreshwa. Mubyongeyeho, ubuso bwubuyobozi bwa PCB nabwo bugira ingaruka kubiciro. Kubwibyo, insinga zikoresha byanze bikunze byongera umusaruro wibicuruzwa byumuzunguruko.
Ikosa risanzwe 5: Sisitemu yacu isabwa ni ndende cyane, harimo MEM, CPU, FPGA kandi chip zose zigomba guhitamo byihuse.
Igisubizo cyiza: Ntabwo buri gice cya sisitemu yihuta ikora ku muvuduko mwinshi, kandi burigihe burigihe umuvuduko wigikoresho wiyongereye kurwego rumwe, igiciro cyikubye kabiri, kandi gifite n'ingaruka mbi kubibazo byubusugire bwibimenyetso. Kubwibyo, mugihe uhisemo chip, birakenewe gusuzuma urwego rwo gukoresha ibice bitandukanye byigikoresho, aho gukoresha byihuse.
Ikosa risanzwe 6: Igihe cyose gahunda ihamye, code ndende hamwe nubushobozi buke ntabwo ari ngombwa.
Igisubizo cyiza: Umuvuduko wa CPU n'umwanya wo kwibuka byombi bigurwa n'amafaranga. Niba umara indi minsi mike kugirango utezimbere imikorere ya progaramu mugihe wandika code, noneho ikiguzi cyo kuzigama cyo kugabanya inshuro za CPU no kugabanya ubushobozi bwo kwibuka birakwiye rwose. Igishushanyo cya CPLD / FPGA kirasa.