Nghin cu, ng dng vi iu khin 89S52 vo iu khin LED 3D (5x5x5)

TRNG I HC S PHM H NI KHOA VT L

BO CO SINH VIN NGHIN CU KHOA HC NM 2012

NGHIN CU, NG DNG VI IU KHIN 89S52 VO IU KHIN LED 3D (5X5X5)

Sinh vin Lp Ngi hng dn

: i Vit Dng : K58 A : ThS. Nguyn Trng Dng

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Nghin cu, ng dng vi iu khin 89S52 vo iu khin LED 3D (5x5x5)

Li m uNgy nay vi s pht trin nh v bo v khoa hc cng ngh thng tin. Vic s dng ngn ng lp trnh C v vi iu khin 89S52 l iu cp thit, quan trng trong s pht trin cng nghip ha v hin i t nc hin nay. Chnh iu chng ti quyt nh chn ti Nghin cu, ng dng vi iu khin 89S52 vo iu khin led 3D vi mong mun ng gp mt phn vo vic a ng dng vo thc tin -Mc ch ca nghin cu khoa hc l: + Nghin cu cu trc, nguyn l hot ng ca vi iu khin 89S52. + Nm vng quy trnh thit k mch nguyn l, mch in, lp rp led3d, ngn ng lp trnh C. -i tng nghin cu: Vi iu khin 89S52, ngn ng lp trnh C v phng php lp rp led 3d. -Phng php nghin cu: Bng phng php thc nghim. - ngha khoa hc v thc tin ca ti: L ti nghin cu khoa hc c bn, ng gp vo vic tm hiu cch thit k bng qung co n led 3d.

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Nghin cu, ng dng vi iu khin 89S52 vo iu khin LED 3D (5x5x5) Phn 1. Tng quan 1.1. LED n 1.1.1. Khi nim. - Led n (Light Emitting Diode): L cc dit c kh nng pht ra nh sng hay tia hng ngoi, t ngoi. Cng ging nh it, Led c cu to t mt khi bn dn loi p ghp vi mt khi bn dn loi n. - Led 3d l h thng led n c mc theo cu trc ma trn 5x5x5 1.1.2. Hnh nh.

Led n

Led 3d (5x5x5)

1.2. Phn cng ca 89S52 Vi iu khin 8051 c Intel cho ra i vo nm 1980 thuc vi iu khin u tin ca h MCS-51. Hin ti rt nhiu nh sn xut nh Siemens, Advanced Micro Devices, Fusisu v Philips tp trung pht trin cc sn phm trn c s 8051. Atmel l hng cho ra i cc chip 89C51, 52, 55 v sau ci tin thm, hng cho ra i 89S51, 52, 89S8252 Cu hnh 89S52: + 8KB b nh chng trnh. 3 i Vit Dng

Nghin cu, ng dng vi iu khin 89S52 vo iu khin LED 3D (5x5x5) + Dao ng bn ngoi vi thch anh