Objective Development Forums

Re: V-USB Build Error

2012-09-27T18:08:04+02:00

In Atmel studio 6 i just add usbdrvasm.S to the project, then add a "C" in front of extern in usbdrv.h and that's it.

extern "C" unsigned usbCrc16Append(unsigned data, uchar len);

Statistics: Posted by Guest — Thu Sep 27, 2012 6:08 pm

Re: V-USB Build Error

2010-04-05T01:53:19+02:00

I have the same problem. How can i link the usbdrvasm.s to AVRStudio ?

A big thing I noticed when using AVR Studio is that you might need to change the source code to include the full relative path of the V-USB files, i.e.,

Code:

#include "usbdrv.h"

should be

Code:

#include "usbdrv/usbdrv.h

Also, in order to have the files complied along with your project, make sure you add usbdrvasm.s into the Source Files folder in the file view in AVR Studio (along with your main, usbdrv.c, etc.)

Statistics: Posted by Alan Chatham — Mon Apr 05, 2010 1:53 am

Re: V-USB Build Error

2010-04-04T18:02:15+02:00

vargata wrote:How can i link the usbdrvasm.s to AVRStudio ?

I would recommend you take a look at the AVR-CDC project for a good example of how it should be done. An AVR Studio project .aps is included with the source code.

Statistics: Posted by maxi — Sun Apr 04, 2010 6:02 pm

Re: V-USB Build Error

2010-04-04T17:07:54+02:00

I have the same problem. How can i link the usbdrvasm.s to AVRStudio ?

Statistics: Posted by Guest — Sun Apr 04, 2010 5:07 pm

Re: V-USB Build Error

2009-06-07T20:48:52+02:00

You probably don't link the assembler part. This routine is implemented in assembler.

Statistics: Posted by christian — Sun Jun 07, 2009 8:48 pm

V-USB Build Error

2009-06-07T14:02:38+02:00

Hello
When i try to build V-USB project in Eclipse AVR i have an error:
i try to compile and build this project that i dont manipulate it after download from obdev.at!
undefined reference to usbCrc16Append(&usbTxBuf[1], len) in line 536 of usbdrv.c file! why this error occurred when i see anything is true!
usbdrv.h is included too.

Statistics: Posted by Guest — Sun Jun 07, 2009 2:02 pm