USB-Unicode (AVR): incazelo, isiqu

Ngo umsakazo ochwepheshe bayathanda bahlanganyele ukwakhiwa kwezinto zikagesi, ngezikhathi isikhathi kubalulekile ukusebenzisa imiklamo yabo microcontrollers. Ukusetshenziswa kwalezi amadivayisi Semiconductor It unikeza amathemba okukhulu electronics. Microcontrollers akhiqizwa yizinkampani ezimbalwa kuphela, abaholi okuyizinto MicrochipTechnology, ATMEL, ARMLimited. Isici esiyinhloko amadivayisi sinjalo isidingo Uhlelo yabo firmware. Ngenxa yalesi futhi program ezidingekayo. Nokho, Kuze kube manje, kukhona ukhetho olukhulu izinhlobo ezahlukene program, intengo yemikhiqizo enjalo kuphezulu kakhulu, futhi akuzona zonke amateur radio abakwaziyo ukuthenga leli thuluzi.

Kulesi sihloko sizohlola-USB uhlelo (AVR) ngesisekelo kokulawulwa microcontroller Atmega 8. Lo mkhiqizo ilula ngokwanele ukuba ham radio wakwazi ukuqoqa ke wena musa achithe imali eningi imikhiqizo uphawu. Sikhethe USB-Unicode (AVR) has sakugcina piping microcontroller elikuvumela ukwakha kudivayisi amancane kakhulu. umkhiqizo okunjalo akwenzeki isikhala kakhulu, it has izilinganiso flash ezivamile. USB-Unicode (AVR) e icebo lakhe yakhiwa microcontroller Atmega 8, hlobo luni lwezindlu - TQFP 32 (akumelwe kudidaniswe nohlobo DIP bezinhlamvu, ngoba pinouts ezahlukene). Isifunda sedivayisi esinjalo okuvezwe lapha esithombeni.

Thina uqhubekele incazelo wesifunda yomculo. Jumper J1 isetshenziswa esimweni lapho kukhona microcontroller isidingo EEPROM kokuba imvamisa iwashi ngezansi 1.5 MHz. Uma wayefisa, lo jumper ukuqedwa kalula kusukela wesifunda, ngenxa yalokhu isilawuli okukhipha 25-th uthola "phansi". Kulokhu AVR-USB-Unicode uyohlale usebenza ngaso imvamisa encishisiwe. Kufanele kuqashelwe ukuthi izinhlelo kwi imvamisa ongaphakeme kuthatha isikhathi esengeziwe, kodwa ukunquma, yebo, wena. Zener diodes D1, D2 zisetshenziswa ezingeni ezifanayo phakathi ibhasi USB-Unicode. Blue LED kubonisa ukulungela kwedivayisi kwamanethiwekhi uHlelo the microcontroller, LED obomvu ikhanyisa phakathi izinhlelo. Isifunda has IDC-06 Isixhumi lapho oxhumana zihlobene, okuhambelana uhlobo pinout ATMEL-ISP 6-pin isixhumi. On wathi isixhumi pin-amandla microcontroller, it is ethathwe PC ye-USB izimbobo, ngakho-ke, ukunakekelwa kufanele kuthathwe ukuvimbela izifunda okufutshane. C uhlelo kanye ukulawula isilawuli nge isixhumi esifanayo, kubalulekile ukuxhuma Setha kabusha oxhumana nabo isilawuli isixhumi (kuboniswe Isikimu yemacashata labovu). Jumper ukunciphisa isokhethi isivinini kanye nokuhlela microcontroller uxhumano eliseKissy kudivayisi. Nakhu kuyinto ye-USB uhlelo (AVR), njengoba ungabona, zonke aphansi.

Ngemva inhlangano, lolu cingo kufanele yenganyelwe microcontroller ukukhanya, ngoba ukuthi I batusa ukusebenzisa lolu hlelo PonyProg. Lapho uHlelo, siqale ngesikhathi crystal ukusebenza zangaphandle isikhathi yomthombo 12 MHz.

Ezichazwe kulesi sihloko, le-USB-Unicode ngoba AVR microcontrollers isebenza nge zonke izinhlobo AVR, siyivumele ukuba thunga, ubuke okuqukethwe eqoshiwe kudivayisi yakho, sula chip, ukushintsha ukucushwa.