Maitiro ekugadzira yakanaka PCB dhizaini ine yakaderedzwa ruzha kuita

Maitiro ekugadzira yakanaka PCB dhizaini ine yakaderedzwa ruzha kuita. Mushure mekutora matanho ekumisikidza akataurwa mune ino gwaro, zvinodikanwa kuti uite kuongororwa kwakazara uye kwakarongeka. Gwaro iri rinopa rondedzero yeiyo rl78 / G14 yekuenzanisira ndiro.
Tsananguro yebhodhi rekuyedza. Tinokurudzira muenzaniso wegadziriro. Iwo mabhodhi ematunhu asingakurudzirwe kuti ashandiswe akagadzirwa akafanana dhizaini dhizaini uye zvikamu. Chete pcb marongero akasiyana. Kubudikidza nenzira yakakurudzirwa, iyo yakakurudzirwa pcb inogona kuwana yakanyanya kudzikisira ruzha kuita. Iyo yakarongedzwa dhizaini uye iyo isingakurudzirwe dhizaini inotora imwecheteyo schematic dhizaini.
Pcb marongerwo maviri bvunzo mabhodhi.
Ichi chikamu chinoratidza mienzaniso yenzvimbo dzakakurudzirwa uye dzisina kukurudzirwa. Pcb dhizaini ichave yakagadzirirwa maererano neyakakurudzirwa dhizaini yekudzora ruzha kuita. Chikamu chinotevera chinotsanangura kuti nei marongero ePBB kuruboshwe kuruboshwe rweMufananidzo 1 inokurudzirwa. Mufananidzo 2 unoratidza marongero ePBB akatenderedza MCU yemabhodhi maviri ebvunzo.
Musiyano uripo pakati pezvakakurudzirwa uye zvisina kukurudzirwa marongero
Ichi chikamu chinotsanangura mutsauko mukuru pakati pezvakakurudzirwa uye zvisina kukurudzirwa marongero.
Vdd uye VSS wiring. Zvinokurudzirwa kuti iyo Vdd uye VSS wiring yebhodhi ipatsanurwe kubva kune yekumusoro magetsi wiring pane huru magetsi inlet. Uye iyo VDD wiring uye VSS wiring yebhodi yakakurudzirwa iri padyo pane iyo yeiyo isingakurudzirwe bhodhi. Kunyanya pane iyo isingakurudzirwe bhodhi, iyo VDD wiring yeMCU yakabatana kune yakakosha magetsi magetsi kuburikidza nejumper J1, uyezve kuburikidza nefirita capacitor C9.
Dambudziko re Oscillator. Iwo mascillator macircuit x1, C1 uye C2 pane yakakurudzirwa bhodhi ari padyo neMCU kupfuura iwo ari pane isingakurudzirwe bhodhi. Iyo wiring yakakurudzirwa kubva pascillator dunhu kuenda kuMCU pabhodhi ipfupi pane yakakurudzirwa wiring. Pane isina kukurudzirwa bhodhi, iyo oscillator dunhu haisi pane iyo terminal yeVSS wiring uye haina kupatsanurwa kubva kune imwe VSS wiring.
Bypass capacitor. Iyo yekudarika capacitor C4 pane yakakurudzirwa bhodhi iri padyo neMCU pane iyo capacitor pane isingakurudzirwe bhodhi. Uye iyo wiring kubva pakupfuura capacitor kuenda kuMCU ipfupi pane yakakurudzirwa wiring. Kunyanya pane asingakurudzirwe mabhodhi, C4 inotungamira haina kubatana zvakananga neVDD uye VSS trunk mitsara.