USB-Programmer (AVR): hauj lwm, los

Nyob rau hauv xov tooj cua technicians uas nyiam mus koom nyob rau hauv kev tsim kho ntawm hluav taws xob, los ntawm lub sij hawm mus hawm nws yog tsim nyog los siv nyob rau hauv lawv designs microcontrollers. Cov kev siv ntawm cov semiconductor pab kiag li lawm Nws muaj zog heev muaj zeem muag rau lub electronics. Microcontrollers yog ua los ntawm tsuas yog ob peb tuam txhab uas muag, cov thawj coj ntawm cov uas yog MicrochipTechnology, ATMEL, ARMLimited. Lub ntsiab feature ntawm tej pab kiag li lawm yog qhov yuav tsum tau rau lawv cov kev pab cuam firmware. No thiab yuav tsum tau programmers. Rau hnub tim, muaj ib tug lossis loj xaiv ntawm ntau hom ntawm cov, tiam sis, cov nqi ntawm tej khoom yog heev siab heev, thiab tsis yog txhua tus lub xov tooj cua amateur yuav them taus los yuav xws li ib tug ntaus ntawv.

Nyob rau hauv no tsab xov xwm peb yuav saib USB-programmer (AVR) nyob rau lub hauv paus ntawm cov kev tswj ntawm lub microcontroller Atmega 8. Cov khoom no yog tej yam yooj yim txaus rau cov nqaij npua xov tooj cua muaj peev xwm sau koj tus kheej thiab tsis txhob siv ntau tshaj cov nyiaj rau cov khoom muaj npe khoom. Peb tau xaiv lub USB-programmer (AVR) muaj tsawg heev piping microcontroller uas tso cai rau koj mus ua ib tug heev me me ntaus ntawv. Xws li ib tug khoom tsis coj mus ntau qhov chaw, nws muaj lub qhov ntev ntawm ib tug pa flash. USB-Programmer (AVR) nyob rau hauv nws cov tswvyim hauv comprises ib microcontroller Atmega 8, lub hom tsev nyob - TQFP 32 (tsis yuav tsum tau meej pem nrog lub hom DIP casing, vim hais tias lawv muaj ntau pinouts). Lub Circuit Court ntawm xws li ib tug ntaus ntawv yog qhia nyob rau hauv cov kev yees duab.

Peb npaj mus rau qhov kev piav qhia ntawm lub twj paj nruag Circuit Court. Jumper J1 yog siv nyob rau hauv lub rooj plaub uas muaj ib tug xav EEPROM microcontroller muaj ib tug moos zaus hauv qab no 1.5 MHz. Yog hais tias qhov kev kawm, qhov no jumper yooj yim tshem tawm los ntawm lub Circuit Court, rau qhov 25-th xws zis tau txais mus rau "av". Nyob rau hauv cov ntaub ntawv no AVR-USB-programmer yuav yeej ib txwm khiav lag luam ntawm ib tug txo zaus. Nws yuav tsum tau muab sau tseg tias programming rau lub tsawg zaus yuav siv sij hawm ntau lub sij hawm, tab sis los txiav txim, ntawm chav kawm, koj. Zener diodes D1, D2 yog siv rau theem txuam ntawm lub tsheb npav thiab lub USB-programmer. Blue LED qhia lub ntaus ntawv npaj txhij rau lub cajmeem lub microcontroller, liab LED teeb thaum lub sij hawm lub cajmeem. Lub Circuit Court muaj IDC-06 connector uas cov neeg yog muab tau, uas sib raug mus rau lub pinout hom ATMEL ISP 6-pin connector. Nyob rau hais tias connector pin-power microcontroller, nws yog coj los ntawm cov PC USB-ports, yog li ntawd, kev saib xyuas yuav tsum raug coj mus rau tiv thaiv kom txhob luv luv circuits. C cov programming thiab cov kev tswj ntawm lub maub los ntawm lub tib lub connector, nws yog tsim nyog mus cuag cov pib dua hu rau lub maub los thiab cov connector (qhia nyob rau hauv Scheme liab dotted). Jumper txo cov programming ceev thiab microcontroller kev twb kev txuas socket nyob ntawm tus dais kawg. Ntawm no yog dab tsi yog ib tug USB-programmer (AVR), raws li koj tau pom, tag nrho cov elementary.

Tom qab los ua ke, tus ntaus ntawv yuav tsum tau tswj los ntawm ib tug microcontroller rau nyem, rau cov uas kuv pom zoo kom siv qhov kev pab cuam PonyProg. Thaum lub cajmeem, peb pib ntawm tus siv lead ua hauj lwm rau lwm tus lub sij hawm poob qhov twg los yog 12 MHz.

Piav nyob rau hauv no tsab xov xwm, USB-programmer rau AVR microcontrollers ua hauj lwm nrog tag nrho cov hom ntawm AVR, tso lawv los xaws, saib cov kaw txheem ntawm koj ntaus ntawv, lwv nti, hloov cov configuration.