PIC Microcontroller Development Board System: 3 Kauj Ruam

2024 Tus sau: John Day | [email protected]. Kawg hloov kho: 2024-01-30 09:27

Txoj haujlwm no yog tsim thiab siv PIC cov cuab yeej txhim kho uas hloov pauv kom haum rau ntau yam PIC raws cov phiaj xwm hluav taws xob.

Nws feem ntau yooj yim los tsim cov phiaj xwm microcontroller nrog kev siv cov cuab yeej txhim kho; uas tso cai rau cov neeg siv raws txoj cai los ua kom pom tseeb hauv lub sijhawm. Txawm li cas los xij, los ntawm kev paub tus kheej, tus naj npawb ntawm cov phiaj xwm txhim kho uas twb muaj lawm tuaj yeem raug kev txom nyem los ntawm ib lossis ntau qhov ntawm cov kev txwv hauv qab no;

1. Cov qauv tsim dav dav feem ntau kim, 2. Nqa cov khoom siv me me heev, 3. Muaj cov khoom siv sab nrauv uas tsis haum rau cov haujlwm tshwj xeeb thiab yog li ntawd tsis tshua muaj siv, 4. Muaj cov khoom siv sab nraud uas nyob hauv thaj tsam ntawm pawg thawj coj loj yog li ntxiv rau tus nqi, 5. Tsis tuaj yeem hloov pauv lossis txhawb kev hloov pauv hauv ib puag ncig, 6. Muaj cov txheej txheem saum npoo uas tsis tuaj yeem tshem tawm thiab yog li txwv kev siv rooj plaub ntawm pawg thawj coj loj.

Qhov tseeb, tus neeg siv feem ntau xaiv pawg thawj coj txhim kho raws li qhov xav tau ntawm txoj haujlwm, txawm li cas los xij, qhov no tuaj yeem ua rau nce kev sib sau ntawm cov laug cam txhim kho lossis txwv txoj kev ywj pheej ntawm kev tsim.

PIC kev txhim kho pawg thawj coj tsim tau nthuav tawm ntawm no lub hom phiaj txhawm rau nthuav dav ntawm cov kev txwv no.

Txoj kev txhim kho ua rau siv ob txoj hauv kev tsim PCB pawg thawj coj saib.

Thawj PCB yog lub hauv paus dav hlau rov qab lub rooj tsavxwm uas tuav lub zog xa khoom, MCLR rov pib dua Circuit, RS232 thiab PICKIT programmer tus pin-header. Pawg thawj coj no ua haujlwm ua pawg thawj coj saib xyuas kev sib txuas uas tuav txog rau rau tus ntxhais ntxhais.

Qhov thib ob PCB pawg thawj coj saib yog tus ntxhais pawg thawj coj saib xyuas. Tus qauv PCB tsim qauv thiab hneev taw yog siv los tsim PCB pawg thawj coj tsim uas tuaj yeem ntxiv thiab tshem tawm ntawm pawg thawj coj raws li xav tau. Lub hom phiaj ntawm tus ntxhais lub rooj tswj hwm yog tus tswv lub microcontroller lossis cov khoom siv sab hauv piv txwv, Digital to Analogue Converter (DAC).

Lub hom phiaj tsim yog los tsim cov laug cam raws li xav tau. Yog li no txoj haujlwm no tseem tab tom ua.

Raws li ib feem ntawm txoj haujlwm no kuv tau tsim tus lej ntawm tus ntxhais lub hauv paus tsim qauv uas muaj rau Gerber / Project cov ntaub ntawv rub tawm.

Yog xav paub ntau ntxiv txog tus ntxhais tshwj xeeb thov saib daim ntawv phiaj xwm: PIC Tus Tswj Xyuas Kev Txhim Kho - Daughter Board Catalog, daim ntawv ref: RKD3, muaj nyob nrog cov ntaub ntawv no qhov chaw lossis ntawm kuv lub vev xaib ntawm; www.rkelectronics.org/picdev

Tus ntxhais lub rooj sib tham txuas rau lub rooj tsav xwm tseem ceeb ntawm ob 2 x 30 2.54mm suab pin headers. Qhov no tso cai rau tus ntxhais los tsim ob tog ntawm PCB tsev tsim lossis los ntawm txhais tes siv Vero board.

Kauj Ruam 1: Tus Ntxhais Lub Rooj

Lub rooj tsavxwm tseem ceeb thiab tus ntxhais lub rooj sib tham sib txuas nrog cov tsheb npav hauv qab no;

1. 43 nplooj siab rau I/O kab rau kev sib piv lossis digital, 2. VDD thiab GND fais fab mov, 3. 5 nplooj siab SPI Chip Xaiv (CS) kab, 4. SPI Buss rau MOSI, MISO thiab CLK kab, 5. I²C koom ua ib feem ntawm SPI cov tsheb npav, 6. Dedicated TX thiab RX kab rau RS232, RS485 thiab MIDI, 7. Dedicated D+ thiab D- kab rau USB cov ntaub ntawv, 8. Dedicated PIC programming lines, MCLR, PGD and PGC.

Vim yog qhov xwm txheej ntawm SPI nti xaiv cov kab, cov kab no tau sib koom nrog ntau yam kab I/O. Kev sib qhia uas kab I/O nyob ntawm lub microcontroller ntxhais board siv. Nws tau npaj tseg tias kev sib txuas ntawm CS kab rau lub microcontroller yuav ua tiav ntawm tus ntxhais lub rooj tsavxwm. Piv txwv li, rau PIC16/18 40 Pin USB tus ntxhais lub rooj tsav xwm rau PIC18F4550 CS kab qhia I/O pins 16, 17, 18, 19 thiab 32, uas sib npaug rau PIC pins Chaw nres nkoj C0, C1, C2, C3 thiab E0. Vim li no nws yuav tsum muaj rau txhua lub rooj sib tham ib sab siv SPI txhawm rau suav nrog kev hloov lossis cov txheej txheem txhawm rau txiav tawm qhov tsis siv lossis lwm yam siv kab CS.

Vim yog qhov xwm txheej ntawm RS232 TX thiab RX thiab USB D+ thiab D- kab, cov kab no tseem tau sib koom nrog lwm yam kab I/O. Vim li no nws yuav tsum tau siv rau txhua lub rooj sib tham sab nrauv siv RS232, RS485 lossis USB kom suav nrog kev hloov pauv lossis txheej txheem txhawm rau txiav tawm qhov tsis siv lossis lwm yam siv TX, RX, D+ thiab D- kab.

Cov kab I/O raug xa mus rau ntau yam microcontroller pins, uas pins tau qhia ntxaws hauv tus ntxhais lub rooj sib tham schematic lossis PCB silkscreen. Feem ntau cov chaw nres nkoj raug xa mus rau;

1. Chaw nres nkoj A = I/O kab 0 - 7, 2. Chaw nres nkoj B = I/O kab 8 - 15, 3. Chaw nres nkoj C = I/O kab 16 - 23, 4. Chaw nres nkoj D = I/O kab 24 - 31, 5. Chaw nres nkoj E = I/O kab 32 - 35, Lwm hom PIC xws li dsPIC30/33 thiab 24 series yuav siv cov phiaj sib txawv.

Kauj ruam 2: Gerber Cov Ntaub Ntawv

Nplooj ntawv no muaj Gerber cov ntaub ntawv xav tau los tsim Lub Rooj Tsav Xwm Loj thiab Tus Ntxhais Lub Rooj Sib Tham tsim kom deb li deb. Cov npe yog raws li hauv qab no;

1. Pawg Thawj Coj Loj, 2. Pawg Thawj Coj Loj mus rau Pawg Thawj Saib Xyuas Thawj Pawg thib 2, 3. dsPIC30F 28 Pin [Hom A]

4. dsPIC30F 28 Pin [Hom B]

5. dsPIC30F 28 Pin [Hom C]

6. dsPIC30F 40 Pin [Hom A]

7. dsPIC30F 40 Pin [Hom B]

8. LEDs rau I/O 0 - 39

9. MCP3208 [Hom A]

10. MCP3208 [Hom B]

11. PIC16-18 [8-14-20Pin] [tsis USB]

12. PIC16-18 [28Pin] [tsis USB]

13. PIC16-18 [40Pin] [tsis USB]

14. PIC16-18 [8-14-20Pin] [USB]

15. PIC16-18 [28Pin] [USB]

16. PIC16-18 [40Pin] [USB]

17. Hloov

18. ULN2003

19. Xya Seg

20. 12 Ntsis DAC

21. MAS

22. PIC ADC

23. Khawm Khawm [Hom A]

24. Laub Khawm [Hom B]

25. 16 x 2 Alphanumeric LCD Zaub

26. dsPIC30F [18 Pin]

27. Pin Header Breakouts

Kauj Ruam 3: KiCAD Cov Ntaub Ntawv Cov Ntaub Ntawv

Qhov me ntsis ntawm no yog rau KiCAD cov tsev qiv ntawv tiv toj thiab hneev taw rau tus ntxhais lub rooj tsavxwm. Koj yuav tsum tau ntxiv cov kab txiav ntug ib ncig ntawm hneev taw ua ntej xa koj tus kheej cov ntaub ntawv gerber.

Vam tias koj txaus siab rau txoj haujlwm no!

kuv lub vev xaib rau ntau qhov haujlwm nyob ntawm

www.rkelectronics.org