Circuito de Interface Para Microcontroladores

8/14/2019 Circuito de Interface Para Microcontroladores

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dnfh7rlncnck 1)o> 0 ilfs|rn cj nijrfb o>9 0 mndn 1$11 selh ifmes? 0 mndn 11 4 9>3< selh ifmes; 0 mndn >11$>3< 4 39>=< selh ifmes3 0 mndn >3=< 4 ;1mjsj dnfh

HJSN7 N QFKNUL cf{ql cl |dn qinkn %Nhnijm|lKnifornsfjh OjnrcON[5>1& ~|l qlrdfsl lr hj{ cf{qinv{cl = {lmdlhsj{ j nijr lunksj) lhsrl 1 l ?1

Luldqij cl ifmnj7
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20/26

>5

?(;(3( Slrdf{sjr

\d slrdf{sjr |dn rl{f{shkfn nrfli kjd n sldqlrns|rn( Hn rlnifcncl sjcn{ n{rl{f{shkfn{ nrfnd kjd n sldqlrns|rn) { ~|l j{ slrdf{sjrl{ {j blfsj{ qnrn slrld |dnmrnhcl nrfnj kjd n sldqlrns|rn( N ifmnj cj slrdf{sjr nj dfkrjkjhsjincjr d|fsj{fdqil{) dn{ kjhd sndod knifor$ij %kjd j ON[5>1) qjr luldqij&(

Kjhd ildornr ~|l n rl{qj{sn cl |d slrdf{sjr hj ifhlnr) qlij ~|l n{ ilfs|rn{ hjnrfnd kjdj h|d qjslhkfdlsrj( Ld mlrni) luf{sl |dn mrnhcl nrfnj cl rl{f{shkfnqnrn sldqlrns|rn{ onfun{( F{{j qjcl {lr kjdqlh{ncj qjr {jbs}nrl) |sfifwnhcj mndn{ clnrfnj dlhjrl{ qnrn j{ hlf{ cl sldqlrns|rn dnf{ nisj{( Luqlrfdlhsl ns lhkjhsrnrj{ ng|{sl{ ncl~|ncj{ nj kfrk|fsj l { kjhcfl{ cl sldqlrns|rn(

dnfh7rlncnck 1)o> 0 ilfs|rn cj nijrfb o>9 0 mndn 1$11 selh ifmes? 0 mndn 11 4 9>3< selh ifmes; 0 mndn >11$>3< 4 39>=< selh ifmes3 0 mndn >3=< 4 ;1mjsj dnfh

?(3( Fhslrbnkl kjd Kjdqjhlhsl{ Nnhncj{

?(3(>( Cf{qinv IKC %If~|fc Krv{sni Cf{qinv&

\d Cf{qinv cl Krf{sni If~|fcj |d cf{qj{fsfj lilksrhfkj ~|l qlrdfsl dj{srnrknrnkslrl{ kjdj h|dlrj{) slusj l ~|nf{~|lr j|srj{) fhki|fhcj qjhs|nj( Luf{sld cjf{sfqj{ qrfhkfqnf{ cl cf{qinv{ IKC) j{ cf{qinv{ h|dlrfkj{ %sfqj cj{ |{ncj{ hj{ rlimfj{ lknik|incjrn{& l j{ cf{qinv{ nibnh|drfkj{ %kjdj j{

|{ncj{ hj{ slildlf{&(Hj{ cf{qinv{ h|drfkj{ j kjhg|hsj cl krf{snf{ l{scf{srfo|cj ld {lmdlhsj{) lh~|nhsj ~|l hj{nibnh|hrfkj{ l{sj {jo n bjrdn cl qjhsj{(Kncnkrv{sni sld |dn ifmnj liksrfkn fhcffc|ni qjr bjrdnn {lr kjhsrjincj fhclqlhclhsldlhsl( ^|nhcj j krf{snil{s jbb %f(l( ~|nhcj hj e slh{j nqifkncn nj

krf{sni& j krf{sni hj {l qjr~|l rlbilksl n dl{dn ~|nhsfcncl cl i|w ~|l j dnslrfni cjb|hcj jhcl l{s( Kjhs|cj) ~|nhcj j krf{sni sld |dn slh{j nqifkncn) bfkn qjinrfwncj)no{jrlhcj i|w l qjrsnhsj nqnrlklhcj |d {lmdlhsj) j| qjhsj) dnf{ l{k|rj ~|l qjcl{lr f{|nifwncj kjhsrn j dnslrfni cj b|hcj(

fdqjrsnhsl qlrklolr n cfblrlhn lhsrl j{ cf{qinv{ IKC l ILC( J{ ILC bjrhlkld i|w%qjclhcj {lr f{sj{ hn l{k|rfcj& lh~|nhsj j IKC nqlhn{ rlbilksl n i|w ~|l rlklol( Ld


21/26

>6

kjhsrnqnrsfcn e kjh{|dj cl lhlrmfn hj{ ILC lh~|nhsj ~|l hj{ IKC qrnsfkndlhsl hje kjh{|dj{(

?(3(>(>( Knrnkslrl{ IKCN snolin {lm|fhsl dj{srn j{ knrnkslrl{ cf{qjhlf{ h|d cf{qinv IKC sqfkj( J kcfmjcj kenrnkslr josfcj ncfkfjhnhcj j h|dlrj cnkji|hn nj hdlrj cn ifhen(J{ knrnkslrl{) cj ;? nj >?= {j {ldqrl fm|nf{fhclqlhclhsldlhsl cj IKC) lh~|nhsj j{kenrnkslr{ cj >2 nj ;> l cj >?5 nj ?< {j hjrdnidlhsl cl{fmhncj{kjdj knrnkslrl{ |{lr$clbfhlc l n{{fd) clld{lr clbfhfcj{ nhslkfqncndlhsl) cl nkjrcj kjd j{dnh|nf{ cl kncn bnorfknhsl) qnrn lfsnr ~|l) qnrnl{{l{ kcfmj{) nqnrlnd knrnkslrl{ nilnsrfj{(J b|hkfjhndlhsj cl |d cf{qinv IKC rlinsfndlhsl kjdqiluj cncj ~|l kncn cf{qinvqjcl dl{dj nrdnwlhnr dnf{ knrnkslrl{ cj ~|ln~|lil{ ~|l lil sld knqnkfcncl cl dj{srnr hn {|n

gnhlin( L) hn {|n gnhlin) cl |dn dnhlfrn mlrni) jcf{qinv { kjh{lm|l dj{srnr >2 knrnkslrl{ cl kncn

lw([ ~|l hn dnfjrfn cj{ cf{qinv{ IKC e |dndldrfn ~|l qlrdfsl nrdnwlhnr 31 knrnkslrl{ qjrkncn ifhen ~|l j cf{qinv slhen( Kncn l{qnj hndldrfn _ND |dn knfun qnrn |d kenrnkslr l sld |d lhclrlj ~|l j cl{krll( Nqrfdlfrn ifhen sld j{ lhclrlj{ >?5 n >6>( N {lm|hcn ifhen) j{ lhclrlj{ cl >6? n ?2knrnkslrl{ ld kncn |dn cn{ c|n{ ifhen{( J knrnkslr ~|l qnrn nqnrlklr hn {lm|hcnifhen) jorfmn$hj{ n djlr j k|r{jr qnrn j fhkfj cl{{n ifhen(Qnrn djlr j k|r{jr) qnrn qnrn ~|ni~|lr qj{fj cj cf{qinv) on{sn lhfnr j lhclrlj cn

_ND kjdj fh{sr|j( F{sj ~|lr cfwlr ~|l qnrn lhfnr qnrn n qrfdlfrn qj{fj cnqrfdlfrn ifhen %lhclrlj >?5&) lhfnr l{sl lhclrlj kjdj fh{sr|j( Jrn) qnrn djlrj k|r{jr qnrn j fhkfj cn ifhen ? on{sn lhfnr j lhclrlj %>6?& cn _ND kjdj

fh{sr|j qnrn j dc|ij IKC( Qnrn djlr j k|r{jr qnrn n ~|fhsn qj{fj cn {lm|hcnifhen sld ~|l {l lhfnr n fh{sr|j >6= %4>6?+(?( Fhslrbnkl cl IKCn dfkrjkjhsjincjrl{E sr{ bjrdn{ qrfhkfqnf{ cl bnwlr j fhslrbnkl cl IKC n dfkrjkjhsrjincjrl{(>& Kjd |d fhslmrncj kjd bfrd}nrl [rfl qnrn IKC?& Kjd |d dc|ij [rfl IKC %sld |dn QKF g kjd j fhslmrncj kjd bfrd}nrl&;& Ifmnhcj Cfrlksndlhsl


22/26

?1

Ifmnhcj j IKC |{nhcj J B_D1>1 %[lrfni IKC Bfrd}nrl Kefq&

J B_D1>1 |{ncj qnrn qlrdfsfr j kjhsrjij {rfl cl |d IKC nibnh|dlrfkj( N{{fdqlrdfsl nj{ dfkjkjhsrjincjrl{ %l {f{sldn{on{lncj{ ld dfkrjkjhsrjincjrl{kjdj j{

QFKNUL l On{fk [sndq& |sfifwnr |d lkr jhcl{lgn f{|nifwncj j slusj ~|l j |sfifwncjr ~|lfrnl cl |dn bjrdn rlinsfndlhsl {fdqil{( Qjf{)sjcj{ j{ kjdnhcj{ cj IKC {j srnh{dfsfcj{ nqnrsfr cj dfkrjkjhsrjincjr nsrn{ cl |dnhfkn ifhen {rfl) kjdj {l qjcl lr qlin bfm|rnnj incj l |{nhcj n fh{sr|j {lrj|s(Qjr luldqij) qnrn ~|l nqnrln l{krfsj j slusj Eliij n fh{sr|j {fdqil{dlhsl7

{lrj|s =)S?311)%Eliij&

J qrlj n qnmnr ~|l {l sd ~|l bnwlr n{ ifmnl{ cl nkjrcj kjd j{ cjf{ l{~|ldn{nonfuj7

N& IFMNL[ CJ BF_D]N_L O& IFMNL[ CJ DC\IJ IKC

Ifmnhcj j IKC |{nhcj j NUL1;; %[lrfni IKC Djc|il&

J NUL1;; |d dc|ij {rfl ld QKF % lhcfcj ld `fs& g kjd sjcn{ n{ ifmnl{ blfsn{cj IKC qnrn j fhslmrncj cj bfrd}nrl(Qjrsnhsj) j dc|ij ld$hj{ ng|cnr n rl{jilr n{ ifmnl{ hlkl{{rfn{ hn jqj nhslrfjr)nid cl ~|l l{sl dc|ij qlrdfsl j |{j cj qrjsjkjij cl kjd|hfknj f?k(


23/26


24/26

??

\d Qrjmrndn dnf{ Nnhncj

J qrjmrndn {lm|fhsl bnw rjcnr hn gnhlin cj IKC n dlh{nmld Eliij selrl llrvojcv.(F{sj qjr~|l j slusj sld dnf{ cj ~|l n{ >2 ilsrn{ ~|l |d lkr {|qjrsn( N dlh{nmld qrfdlfrj nrdnwlhncn hn dldrfn cj IKC) fhcj clqjf{ rjcnhcj hn gnhlin cj cf{qinvrlqlsfcndlhsl qnrn ~|l {lgn dj{srncn sjcn n dlh{nmld(

LLQ_JD 1)%Eliij selrl llrvojcv.& nrdnwlhn j slusj hn dldrfn LLQ_JD

mj{|o fhfs fhfsfnifwn j IKC

{snrs7 ils o> 4 > o>4> 48 fh{sr|j kilnr cf{qinv

mj{|o }rfh{ lhfn fh{sr|j qnrn j IKC

bjr o; 4 1 sj ?? kfkij bjr(((hlus %Eliij selrl llrvojcv. ?? knrnkslrl{&

rlnc o;) o> o>4LLQ_JDPo;T

mj{|o }rker lhfn kenrnkslr qnrn IKC

hlus o; kjhsfh|n

ils o> 4 >? o>4>? 48 fh{sr|j efcl k|r{jr


dnfh7 ils o> 4 ?3 o>4?3 48 fh{sr|j {krjii cf{qinv ilbs


qn|{l ?> 1>1> 4 >1>>1>1>


25/26

?;

hfooil nisj + hfooil onfuj 4 ovsl

N b|hj cn{ sr{ {|orjsfhn{ {snhcnrc %fhfs) }rfh{ l }rker& ilnr n knoj sjcn l{snsnrlbn kjdqifkncn ~|nhcj srnoniendj{ kjd cf{qinv{ IKC(

fhfs7 ils qfh{ 4 1 Sjcn{ {ncn{41

ils o3 4 1 _l{ls nrfnli

ils cfr{ 4 ?


26/26

>1 Rf{|nifwnj cj IKC jbb>? [ld k|r{jr>; K|r{jr n qf{knr>3 Rf{|nifwnj cj IKC %l k|r{jr& jh>2 Djl k|r{jr qnrn n l{~|lrcn |dn qj{fj?1 Djl k|r{jr qnrn n cfrlfsn |dn qj{fj

?3 Bnw j {krjii cn gnhlin |dn qj{fj qnrn n l{~|lrcn?5 Bnw j {krjii cn gnhlin |dn qj{fj qnrn n cfrlfsn>?5 Djl j k|r{jr qnrn j fhkfj cn qrfdlfrn ifhen>6? Djl j k|r{jr qnrn j fhkfj cn {lm|hcn ifhen

Luldqij{

Ifdqnr j cf{qinvkilnr7 ils o> 4 > o>4fh{sr|j kilnr

knii }rfh{ Lhfn qnrn j IKC

Djlr j k|r{jr qnrn n {lm|hcn ifhenkilnr7 ils o> 4 >6? o>4fhkfj cn {lm|hcn ifhen

knii }rfh{ Lhfn qnrn j IKC

Qf{knr |dn dlh{{nmld >1 lwl{bin{e7bjr o; 4 > sj >1 bjr(((hlus |{nhcj nrfnoil o;%h|hkn o>..&

ils o> 4 >1 o>4Rf{|nifwnj cj IKC jbbmj{|o }rfh{ Lhfn qnrn j IKC

qn|{l ?11 Qn|{n cl 1(? {lm|hcj{

ils o> 4 >3 o>4Rf{|nifwnj cj IKC jhmj{|o }rfh{ Lhfn qnrn j IKC


hlus o; Bfd cj ijjq bjr(((hlus

Bnwlr {krjii n |dn dlh{nmld ijhmn %;1 knrnkslrl{&{krjii7 bjr o; 4 > sj ;1 bjr(((hlus |{nhcj nrfnoil o;%h|hkn o>..&

ils o> 4 ?5 o>4[krjii cn gnhlin |dn qj{fj q* cfrlfsnmj{|o }rfh{ Lhfn qnrn j IKCqn|{l ?11 Qn|{n cl 1(? {lm|hcj{

hlus o; Bfd cj ijjq bjr(((hlus

ils o> 4 > o>4fh{sr|j kilnr

mj{|o }rfh{ Lhfn qnrn j IKC


mjsj {krjii Ijjq

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