Ungayakha kanjani isakhiwo esihle se-PCB esincishisiwe ukusebenza komsindo. Ngemuva kokuthatha izinyathelo zokuphikisa ezishiwo kulo mbhalo, kuyadingeka ukwenza ukuhlolwa okuphelele nokuhlelekile. Lo mbhalo uhlinzeka ngencazelo yesampula le-rl78 / G14.
Incazelo yebhodi lokuhlola. Sincoma isibonelo sokuhlelwa. Amabhodi wesifunda anganconyelwe ukuthi asetshenziswe enziwe ngomdwebo kanye nezinhlaka ezifanayo. Ukuhlelwa kwe-PCB kuphela okuhlukile. Ngokusebenzisa indlela enconyiwe, i-PCB enconyiwe ingafinyelela ukusebenza okuphezulu kokunciphisa umsindo. Isakhiwo esinconyiwe nesakhiwo esinganconyiwe sisebenzisa ukwakheka okufanayo kohlelo.
Ukuhlelwa kwe-PCB kwamabhodi amabili wokuhlola.
Lesi sigaba sikhombisa izibonelo zezakhiwo ezinconyiwe nezinganconyiwe. Ukuhlelwa kwe-PCB kuzokwakhiwa ngokuya ngesakhiwo esinconyiwe ukunciphisa ukusebenza komsindo. Isigaba esilandelayo sizochaza ukuthi kungani kunconywa ukwakheka kwe-PCB ohlangothini lwesobunxele loMdwebo 1. Umdwebo 2 ukhombisa ukwakheka kwe-PCB ezungeze i-MCU yamabhodi amabili wokuhlola.
Umehluko phakathi kwezakhiwo ezinconyiwe nezinganconyiwe
Lesi sigaba sichaza umehluko omkhulu phakathi kwezakhiwo ezinconyiwe nezinganconyiwe.
Intambo ye-Vdd ne-VSS. Kunconywa ukuthi i-Vdd ne-VSS wiring yebhodi ihlukaniswe nentambo yamandla wendlela eseceleni kwamandla amakhulu. Futhi i-VDD wiring ne-VSS wiring yebhodi elinconywayo zisondele kakhulu kunalezo zebhodi elinganconyiwe. Ikakhulukazi ebhodini elinganconyiwe, i-VDD wiring ye-MCU ixhunywe kumandla amakhulu nge-jumper J1, bese nge-filter capacitor C9.
Inkinga ye-Oscillator. Amasekhethi we-oscillator x1, C1 no-C2 ebhodini elinconyiwe aseduze ne-MCU kunalawo asebhodini elinganconyiwe. Ukuxhunywa kwentambo okunconywayo kusuka kusifunda se-oscillator kuye kwi-MCU ebhodini kufushane kunentambo enconyiwe. Kwibhodi elinganconyiwe, isekethe le-oscillator alikho endaweni yokugcina izintambo ze-VSS futhi alihlukanisiwe nenye yezintambo ze-VSS.
Dlula i-capacitor. I-bypass capacitor C4 ebhodini elinconywayo iseduze ne-MCU kune-capacitor ebhodini elinganconyiwe. Futhi i-wiring kusuka ku-bypass capacitor iye kwi-MCU imfushane kune-wiring enconyiwe. Ikakhulukazi kumabhodi anganconyiwe, ukuhola kwe-C4 akuxhunywanga ngqo kulayini we-VDD ne-VSS.