Cov txheej txheem:

Digital IC Tester (rau Kev Lag Luam thiab Tsev Kawm Qib Siab Engineering) los ntawm Shubham Kumar, UIET, Panjab University: 6 Cov Kauj Ruam (nrog Duab)
Digital IC Tester (rau Kev Lag Luam thiab Tsev Kawm Qib Siab Engineering) los ntawm Shubham Kumar, UIET, Panjab University: 6 Cov Kauj Ruam (nrog Duab)

Video: Digital IC Tester (rau Kev Lag Luam thiab Tsev Kawm Qib Siab Engineering) los ntawm Shubham Kumar, UIET, Panjab University: 6 Cov Kauj Ruam (nrog Duab)

Video: Digital IC Tester (rau Kev Lag Luam thiab Tsev Kawm Qib Siab Engineering) los ntawm Shubham Kumar, UIET, Panjab University: 6 Cov Kauj Ruam (nrog Duab)
Video: Qhia txog kev ua lag luam tso 1 tau 3 kawg nplua nuj 2024, Kaum ib hlis
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Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no
Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no

Taw qhia thiab ua haujlwm ntawm Digital IC Tester (rau CMOS thiab TTL ICs)

LUS QHIA:

IC's, lub hauv paus tseem ceeb ntawm txhua tus thiab txhua lub tshuab hluav taws xob tuaj yeem siv rau ntau lub hom phiaj thiab kev ua haujlwm. Tab sis qee lub sijhawm vim ua txhaum ICs lub Circuit tsis ua haujlwm. Qhov tseeb nws yog qhov ua haujlwm ntau heev los daws qhov Circuit Court thiab lees paub tias kev tsim hluav taws xob tsim teeb meem lossis IC nws tus kheej tuag lawm. Yog li los nrog cov teeb meem no IC tester paub tseeb tias IC nyob hauv kev txiav txim siab ua haujlwm tau zoo lossis tsis yog.

QHIA:

Cov kauj ruam kom ua tiav txoj haujlwm.

• Kuv tau ua qhov yooj yim Circuit Court ntawm breadboard thiab Sim nrog ob peb ICs yooj yim rau nws.

• Kuv tsim cov Circuit uas tuaj yeem tso rau PCB thiab tuaj yeem siv rau txhua ICs.

• Txhawm rau ua kom txoj haujlwm siv tus phooj ywg zoo, Kuv tau ua haujlwm los ua cov keyboard thiab LCD interface.

Ua haujlwm:

IC uas yuav raug sim yog tso rau hauv lub hauv paus. Muaj ob txoj hauv kev uas IC tester tuaj yeem ua haujlwm

1. Hom pib

2. Txhua hom

1. Hom pib: Hauv kev ua haujlwm ntawm Hom pib tus neeg siv tsis tas yuav siv lub ncoo tseem ceeb, tus neeg siv tsuas yog xav tau ntxig IC hauv IC qhov (socket) thiab IC tester txiav txim siab tus lej IC los ntawm kev sib tham rau MCU uas txuas nrog rau sab nraud EEPROM uas muaj tag nrho cov laj thawj ntawm ICs tom qab ntawd nws pib ntsuas ICs rau ob peb txheej ntawm cov tswv yim uas tau muab los ntawm MCU muaj nyob hauv EERPOM thiab cov zis sib xws. Qhov txiaj ntsig tau rov sib tham dua rau thawj MCU lees tias nws yog qhov raug lossis ua tsis raug uas tau tshwm ntawm LCD. Yog tias IC kuaj pom zoo "IC Ua Haujlwm" tau tshwm rau ntawm LCD, txwv tsis pub "IC Bad" raug tso tawm.

2. Phau ntawv hom: Hauv kev ua haujlwm ntawm phau ntawv hom neeg siv nkag mus rau tus lej IC los ntawm cov keyboard uas yog ib txhij tso tawm ntawm LCD. Tus lej IC tau sib tham rau MCU uas ib txwm sim ICs rau ob peb pawg ntawm cov tswv yim uas tau muab los ntawm MCU thiab cov zis sib xws. Qhov txiaj ntsig tau rov sib tham dua rau thawj MCU lees tias nws yog qhov raug lossis ua tsis raug uas tau tshwm ntawm LCD. Yog tias IC kuaj pom zoo "IC Ua Haujlwm" tau tshwm rau ntawm LCD Tsis tas li "IC tsis zoo" tau tshwm sim. Piv txwv, yog tias peb xav txheeb xyuas 74192 cov kauj ruam hauv qab no yuav tsum ua raws 1. IC piv txwv li yog 74192 tau ntxig rau hauv qab. 2. Tus lej IC piv txwv li 74192 tau siv lub tshuab ntaus ntawv 3. Nkag mus rau tus lej yog tom qab nias 4. yog IC tau ua haujlwm "IC Ua Haujlwm" tau tshwm rau ntawm lub vijtsam txwv tsis pub "IC Tsis Zoo" tshwm.

Kauj Ruam 1: Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no:

Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no
Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no
Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no
Cov Cheeb Tsam Yuav Tsum Ua Ua Txoj Haujlwm no

Cov Cheeb Tsam Yuav Tsum Ua Ua Digital IC tester (rau feem ntau ntawm CMOS thiab TTL ICs)

Du Aduino Mega 2560

Mega 2560 yog lub rooj tswj hwm microcontroller raws ATmega2560. Nws muaj 54 digital input/output pins (ntawm uas 15 tuaj yeem siv ua PWM tawm), 16 analog inputs, 4 UARTs (hardware serial ports), 16 MHz siv lead ua oscillator, USB txuas, txuas lub hwj chim, ICSP header, thiab khawm pib dua. Nws muaj txhua yam xav tau los txhawb lub microcontroller; yooj yim txuas nws mus rau lub khoos phis tawj nrog USB cable lossis txuas nws nrog AC-rau-DC adapter lossis roj teeb kom pib.

⦁ EEPROM

EEPROM xav tau los thauj cov ntaub ntawv ntawm ICs uas peb xav tshuaj xyuas. 24LC512 tuaj yeem siv los khaws 512KB ntawm lub peev xwm cia.

A0, A1, A2 thiab Vss tus pin txuas rau hauv av SCL tus pin yuav tsum txuas rau SDA ntawm Arduino Mega SDA tus pin yuav tsum txuas rau SCL ntawm Arduino Mega WP yog Sau tus pin tiv thaiv yuav tsum txuas rau VCC kom tsis txhob sau ua haujlwm

Cov khoom siv hluav taws xob muaj peev xwm ua tau raws li qhov xav tau ntawm LCD

16*2 LCD yog siv rau lub hom phiaj tso saib

GND thiab VCC yuav tsum tau siv. Peb siv qhov no hauv 4 ntsis hom. Muaj rau txuas DB7 rau D13, DB6 rau D12, DB5 rau D11 thiab DB4 rau D10 tus pin ntawm Arduino. Txuas RS rau D6 thiab EN rau D8.

⦁ Hex KeyPad Txhawm rau tau txais cov lus pom los ntawm tus neeg siv peb siv Hex Keypad Hex keypad txuas xav tau 8 tus pin ntawm Arduino. Muaj peb txuas tus lej thib 1 ntawm tus lej xov tooj mus rau D43 thiab txuas ntxiv mus rau D42 ntawm tus lej kawg ntawm hex keypad.

Kauj Ruam 2: Yuav Ua Li Cas

Yuav Ua Li Cas
Yuav Ua Li Cas
Yuav Ua Li Cas
Yuav Ua Li Cas
Yuav Ua Li Cas
Yuav Ua Li Cas

Yuav ua li cas thiaj ua tau

Kauj ruam 1:

Ua ntej tshaj plaws ua qhov kev sib txuas kho vajtse raws li qhia hauv daim duab kos hauv qab no.

Kauj ruam 2:

Ceev faj thaum txuas GND thiab VCC. tsis quav ntsej txog VCC vim tias VCC tau muab los ntawm kev ua tus lej HIGH hauv kev sib xyaw ua ke ntawm IC tab sis yuav tsum saib xyuas rau GND piv txwv li. GND ntawm IC (IC socket) txuas nrog GND tus pin ntawm microcontroller (MCU) tab sis VCC ntawm IC (IC socket) tsis txuas nrog VCC tus pin ntawm MCU.

Kauj ruam 3:

1. Txhawm rau sau cov ntaub ntawv hauv EEPROM siv 24LC512 thiab cov cai los ntawm ntu piv txwv ntawm Arduino ceev faj txog cov pins txuas ntawm EEPROM nrog MCU. tus pin 1, 2, 3, 4 ib txwm txuas nrog GND tus pin 8 ib txwm txuas nrog VCC. tus pin 5 yog SDA txuas nrog SCL ntawm MCU thiab tus pin 6 yog SCL txuas nrog SDA ntawm MCU tus pin 7 yog WP (sau tiv thaiv) yog li thaum sau cov ntaub ntawv hauv EEPROM txuas nws mus rau GND thiab yog tias cov ntaub ntawv raug sau, kom nyeem cov ntaub ntawv txuas tus pin7 rau VCC ntawm MCU tom qab ntawv koj cov ntaub ntawv yuav muaj kev nyab xeeb hauv EEPROM (24LC512) yog tias txuas nrog GND thaum nyeem ntawv, cov ntaub ntawv yuav poob.

2. Tshaj tawm cov ntaub ntawv ntawm txhua qhov ua tau ua ke ua ke raws li kev tawm tswv yim thiab kev tso tawm ntawm txhua ICs siv kev pab ntawm rooj tseeb. Cov ntaub ntawv yuav tsum yog hom ntawv hauv qab no "IC name" / r / n "Tsis muaj tus pin" / r / n Muaj peev xwm logic / r / n

Piv txwv 7408 yuav tsum nkag mus raws li hauv qab 7408 / r / n14 / r / n00L00LGL00L00V / r / n01L01LGL01L01V / r / n10L10LGL10L10V / r / n11H11HGH11H11V

Kauj Ruam 4: Tshaj tawm cov cai hauv qab no hauv mega 2560.

Kauj ruam 5: Pib siv…. 1. Ntxig IC hauv lub qhov (socket) saib xyuas GND tus pin txuas nrog GND tus pin ntawm IC ntsawb siv GND tus pin ntawm MCU. 2. Ua raws li cov lus qhia ntawm lub vijtsam LCD kom siv nws.

Kauj ruam 3: CKT Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code

CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code
CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code
CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code
CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code
CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code
CKT. Daim duab, Proteus Simulation Cov Ntaub Ntawv thiab Cov Duab thiab EEPROM Code

Kauj Ruam 4: Yuav Siv Li Cas

Yuav Siv Li Cas
Yuav Siv Li Cas
Yuav Siv Li Cas
Yuav Siv Li Cas
Yuav Siv Li Cas
Yuav Siv Li Cas

Yuav siv li cas:

Kauj ruam 1

Txuas lub cuab yeej siv USB cable lossis DC adapter.

Kauj ruam 2

Koj yuav pom 2 hom kev xaiv ntawm LCD.mode1: hom pib thiab hom 2: hom kev ua haujlwm Step3. IC uas yuav raug sim yog tso rau hauv lub hauv paus. Muaj ob txoj hauv kev uas IC tester tuaj yeem ua haujlwm

1. Hom pib 2. Phau ntawv hom

1. Hom pib:

Hauv kev ua haujlwm ntawm Hom pib siv tsis tas yuav siv lub ncoo tseem ceeb, nws tsuas yog yuav tsum ntxig IC hauv IC qhov (socket) thiab txiav tus lej IC tau sib tham rau MCU uas ib txwm sim ICs rau ob peb pawg ntawm cov tswv yim uas tau muab los ntawm MCU thiab cov zis sib xws. Qhov txiaj ntsig tau rov sib tham dua rau thawj MCU lees tias nws yog qhov raug lossis ua tsis raug uas tau tshwm ntawm LCD. Yog tias IC kuaj pom zoo "IC ua haujlwm" yog tso tawm ntawm LCD. Txwv tsis pub "Bad IC" raug tso tawm. 1. Ntxig ib qho IC 2. Nias 1 kom qhib hom pib 3. Tshaj li nws qhia "Xeem" 4. Yog tias IC muaj, nws qhia "Pom" 5. Yog IC zoo dua li nws luam tawm txhua qhov ICs

2. Phau ntawv hom:

Nyob rau hauv kev ua haujlwm ntawm phau ntawv hom tus neeg siv nkag mus rau tus lej IC los ntawm cov keyboard uas yog ib txhij tso tawm ntawm LCD. Tus lej IC tau sib tham rau lwm MCU uas ib txwm sim ICs rau ob peb pawg ntawm cov tswv yim uas tau muab los ntawm MCU thiab cov zis sib xws. Qhov txiaj ntsig tau rov sib tham dua rau thawj MCU lees tias nws yog qhov raug lossis ua tsis raug uas tau tshwm ntawm LCD. Yog tias IC kuaj pom zoo "IC ua haujlwm" yog tso tawm ntawm LCD. Txwv tsis pub "Bad IC" raug tso tawm.

Piv txwv li, yog tias peb xav txheeb xyuas 74192 cov kauj ruam hauv qab no yuav tsum tau ua raws - IC piv txwv li yog 74192 tau tso rau hauv lub hauv paus.

⦁ Xaiv Hom Kev Qhia ⦁ Tus lej IC piv txwv li 74192 tau ntaus ntawv siv lub keyboard

Nias Enter qhov tseem ceeb

Tom qab ntawd nws tshawb nrhiav IC hauv lub hauv paus thiab yog tias muaj nws qhia pom

Tom qab ntawd nws yuav ntsuas IC

yog IC ua tau zoo, "IC Ua Haujlwm" tau tshwm ntawm qhov screen lossis "IC tsis zoo" tau tshwm.

Kauj Ruam 5: Tam sim no Peb Muaj Peb Cov Khoom Tsim Tawm

Tam sim no peb muaj peb cov khoom tsim tawm
Tam sim no peb muaj peb cov khoom tsim tawm

YUAV TSHUAJ KHOOM

ICs TESTED: 4002 4009 4010 40106 4011 4012 4013 4015 4016 40161 40162 4017 40174 40175 4018 4019 40192 40193 4020 4022 4023 4024 4025 4027 4029 4030 4031 4040 4041 4042 4043 4044 4048 4049 407 407 4069 4069 407 4069 407 407 4069 407 407 4069 407 407 4069 407 407 4069 407 407 4069 407 407 4069 407 407 407 4069 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 4069 407 407 4069 407 407 407 407 4069 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 407 4075 4076 4077 4078 4081 4082 4093 4094 4098 4501 4503 4506 4510 4511 4512 4518 4519 4520 4529 4532 4543 4532 4543 4572 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 74107 74109 7411 741 747 741 7413 741 741 741 741 741 741 741 741 741 741 741 741 741 741 741 7413 7413 747 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 7413 74140 74147 74148 7415 74151 74153 74157 74158 7416 74160 74161 74162 74163 74164 74164 74165 74165 74166 7417 74173 74177 74187 74182 74190 74192 74193 74194 74195 7420 7421 7422 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 742 7242 742 742 742 และ 7457 742 742 742 742 742 742 742 742 742 และ 7457 742 742 742 742 742 742 742 742 742 742 และ 7457 742 742 742 742 742 742 742 742 742 742 และ 7457 742 742 742 742 742 7242 74298 7430 7432 74365 74366 74367 74368 7437 74375 7438 74386 74390 74393 7440 7442 7447 7450 7445 7450 7451 7452 7455 7458 74589 74595 74597 7460 7461 7462 7465 74154 7474 7485 7486 74244 74373/74

Teeb meem FACED

1. Kev sib txuas ntawm lub khob cij tsis ruaj khov. Nws tsis ntseeg tau yog li kuv rov kho peb lub Circuit Court ntawm PCB.

2. Txij li arduino Mega lub cim xeeb tsawg me me yog li kuv tau siv sab nraud ROM 24LC512 rau cov ntaub ntawv khaws cia ntawm IC's Txhua qhov ua tau ua ke ntawm INPUT thiab OUTPUT, Rau 16 tus pin ICs 16 me ntsis logic series, rau 20 tus pin ICs 20 me ntsis logic series 3. Kuv sim ua qhov ntsuas Ic no los ntsuas ICs nrog 28 Pin tab sis tsis muaj cov koob digital Kuv tsis tuaj yeem ua rau 28 tus pin. Nws tuaj yeem ntsuas txog 20 lossis 24 tus pin ICs.

4.caution: GND tus pin ntawm IC xav tau los muab GND los ntawm MCU's GND tus pin, tab sis VCC tus pin ntawm IC tsis txuas nrog VCC ntawm MCU, tag nrho txoj haujlwm yuav ua haujlwm tsis tiav.

FUTURE EXTENSION:

Txoj haujlwm tuaj yeem txuas ntxiv raws li hauv qab no:

1) Nws tuaj yeem txuas ntxiv rau ntau dua 28 tus pin ic los ntawm kev hloov qee yam khoom siv thiab qee cov ntaub ntawv ntawm IC ntawd

2) Nws tuaj yeem txuas ntxiv rau analog IC's

Kauj Ruam 6: Koj tuaj yeem thov IC Tester Cov Cai Tseem Ceeb hauv Cov Lus Qhia lossis Xa Ntawv Rau Kuv ntawm [email protected]

Sib cuag

Xub Kumar

UIET, University of Panjab

Pom zoo: