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Communication with USB

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giorgos3924

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Hello!
I want to make a project to communicate with usb!
PC <-> development board
I need some idea to do that.
I'm thinking to use some avr with internal usb module. but who? :( someone with support maybe...?
maybe it's difficult to me the pc programming part
What's the easy way to use? Visual C++? i want to have GUI. :(
and in part of uC programming, i have only STK500 for attiny, atmega series.
What i must to have for the new atmel's uC with internal USB? Can i programming with some easy circuit? in circuit programming or like that?

Thank you! :)
 

hamidmoallemi

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I think the best way for you is to use virtual serial port, that uses usb hardware but the PC deals with that like a serial port and its very easy to implement its program in both MCU and PC, you can use some USB<->serial ICs like FT232 ,
also take a look at AVR309 application note
 

giorgos3924

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What's compiler is best to user for this?
i want to have gui.
Visual C++ (visual studio 2012) confuses me :(
i thinking to use qt sdk.
I want native c++, not .net

thanks for the reply! :)
 

hamidmoallemi

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I work with .net and i have no problem with that , it has serial port component that is very easy to use, but i think you will not have much problem in c++ too,
good luck!
 

giorgos3924

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Who avr with usb module can i use for easy results?
someone with support?
 

yannoo95170

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I have buy a Xilink FPGA board with a RS232 to USB cable and the connexion between the FPGA board and my linux box work fine

I use this with Kermit on my linux box
Code:
set line /dev/ttyUSB0
set speed 115200
set modem type none /*** this line is important, otherwise you can’t input ***/
set carrier-watch off
connect

=> I have now the "hello world !" message on my computer screen every time I reset the FPGA board :)
(the RS232 to USB connection is automatically recognized as /dev/ttyUSB0 on my linux box
)
 
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Dreso12

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a simple alternative for USB communications is Microchip MCP2210. It is a translator from SPi to USB and Microchip provides a driver you can use in.net applications easily. It is the simpliest alternative I have found, and the micro is inexpensive.
 

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