Objective Development Forums

I really don't think it will ever be possible to use v-usb as usb host. This is the closest thing I have come across to a software usb host implementation. http://instruct1.cit.cornell.edu/courses/ee476/FinalProjects/s2007/blh36_cdl28_dct23/blh36_cdl28_dct23/index.html I wouldn't waste my time on it...

Something like this perhaps http://www.recursion.jp/avrcdc/cdc-spi.html?

There is a version for mega8, shouldn't be too difficult to compile for mega16.

Szopler wrote: Can I use another Device Name than "DataStore" for free?

Yes.

szopler wrote:Which parameters can I change without payment?

Any of them, however a unique Vendor ID will cost you around USD $2000.

Windows automatically identifies my project as USBasp. How to change this? I have to change the PID value? You edit usbconfig.h and then re-compile. #define USB_CFG_DEVICE_ID 0xdc, 0x05 /* = 0x05dc = 1500 */ If i use an identification in my program by vendor and product name to communicate, is the ...

_Petya_ wrote:The only changes to the supplied schematic are the tiny2323 instead of AT90S2313 and the Zener-diode method instead of the 3.5V regulator (LE35CZ)

Are you using a separate power supply or are you powering the device entirely from USB? Maybe drawing too much current?

I see you are using a USBasp programmer, could it be that the VID & PID are the same as LEDcontrol? I know Windows has a problem with this scenario but not too sure about Ubuntu. Try re-booting without the programmer connected and see if that makes a difference.

You should be calling usbPoll() from the main loop. It is a bad idea in any case to call a subroutine from an ISR 6.- Interrupts and Timing - Make sure that you're not using interrupts higher than the interrupt you have set for VUSB. Also make sure you're not disabling interrupts for longer than a f...

A quick search for the keyword "Studio" would have uncovered this recent thread http://forums.obdev.at/viewtopic.php?f=8&t=5290&start=0&hilit=studio where I advised the OP to check out the AVR-CDC project that comes with AVRStudio project files. Maybe you can see where you went...

With respect, this is a support forum for V-USB, not AVRStudio. It amazes me why so many people insist on using it when they clearly do not know how to set it up properly. The advice I have given would atleast confirm that this is indeed an AVRStudio setup issue and not a problem with V-USB or your ...

You need to run the makefile from a console (eg MSYS) as the ones provided are not intended for use with AVRStudio. I suggest you forget about AVRStudio for now, start again with a fresh copy of V-USB and follow the instructions in Readme.txt. BUILDING THE FIRMWARE ===================== Change to th...

I commented out the error message in usbdrv.h, which revealed a load of assembler errors: ../usbdrv/usbdrvasm12.inc: Assembler messages: ../usbdrv/usbdrvasm12.inc:57: Error: constant value required Commenting out debug messages is really not a good idea! The assembler *errors* are because, among ot...

There is no magic hex file that is going to make your device work on Windows 7. If anything it could be a driver issue, although this should not be the case for HID. You really need to verify that the hardware is functioning as it should before blaming your OS.

unknow wrote:I allways just got USB device not recognized.

That could well indicate a problem with the hardware. Have you proven that the device does indeed work on any of the other systems?

I guess the first thing you need to do is ascertain whether the problem is with your OS or your hardware. If you are able, try out the device with a different OS. If you get hold of a live linux CD/Flash drive you could view the dmesg output, that may provide you with some more clues.

You do know that you can simply open MSYS, cd to the firmware directory and type 'make hex'? This is how the projects' makefiles were intended to work. Please note that the first "make hex" copies the driver from the top level into the firmware directory. If you use a different build syste...