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PIC18F2445 USB Experimental IO Board
Posted on Wednesday, April 28, 2010   •   Category: PIC


Manji broj proizvođača proizvodi IC kola za USB podršku. Najpoznatiji su: Cypress Semiconductor, FTDI, Philips i drugi. Microchip je 2000 godine proizveo mikrokontrolere PIC16C745 i PIC16C675 koji su imali podršku za USB komunikaciju i tako se pridružio ostalim proizvođačima. Ovi mikrokontroleri podržavaju USB 1.1 standarad, odnosno USB sa brzinama rada do 1.5 MBs. Nova serija Microchip-ovih mikrokontrolera urađenja u flash tehnologiji PIC18F2445/2550/4455/4550 je podržala USB 2.0 standrad. Ovo su moćni mikrokontroleri sa brzinama takta i preko 40Mhz i veličinom programske memorije od 32K reči. O stanadardima za USB možete na sajtu http://www.usb.org. Upravo na ovim mikrokontrolerima urađen je interfejs sa USB komunikacijom.

   PIC18F2445 USB Experimental IO Board

 

Build Accurate LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and reset function to make sure the readings are as accurate as possible ... [more]



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