Objective Development Forums

avr-gcc allows mixing assembler and C modules quite nicely -- including usage of I/O macros (via #include <avr/io.h>). Just take a look at some of the AVR-USB projects.

Kann Dir leider nicht sagen was dass Problem ist. Klingt nach einem Takt Problem, ueberprueff Deine Fuse-Bit Einstellungen.

Der Groessenunterschied der HEX images liegt vmtl. am GCC. Christian benutzt meist V3.X.X, V4.X.X erzeugt deutlich groesseren Code..

henni wrote:> Can I use a ATTiny(24) to work as USB interface for a Arduino?
Please specify what an Arduino should be (e.g. by typing a web address).

Google is your friend..

You are over running the CPU. 1/100ns = 10MHz, ie. 1.2 clock cycles per IRQ... Once the time is started the CPU is locked into the ISR routine.

Anonymous wrote:...and where would I get _that_ from? sourceforge provides only the latest version

Oh, rly ?

It's all handled on top of the driver -- namely the PID class (Physical Interface Devices), an extension of the HID class. See Device Class Definition for PID 1.0 . This Document describes the USB Physical Interface Device or PID Class. The PID Class is intended as an extension of the Human Interfac...

Try plugging the device(s) back in, go to the device manager and "uninstall" them there.

Rather delete the devices. Search the registry for the pid/vid pairs.

That's defined in the PID class (Physical Interface Devices), an extension of the HID class. See Device Class Definition for PID 1.0 . This Document describes the USB Physical Interface Device or PID Class. The PID Class is intended as an extension of the Human Interface Device (HID) Class for devic...

Heh, would be the 2nd time .. Don't you love 10minutemail.com .. Just d/led the project archive and guess what -- it's based on AVR-USB 2007-08-07 .. Acually it is an older version of AVR-Doper: /* Name: main.c * Project: AVR-Doper * Author: Christian Starkjohann <cs@obdev.at> * Creation Date: 2006-...

Configure usbconfig.h to provide your own configuration descriptor (set USB_CFG_DESCR_PROPS_CONFIGURATION to USB_PROP_IS_DYNAMIC) and add the function uchar usbFunctionDescriptor( struct usbRequest *rq ) to your code. I don't have the time to go into detail (@ work right now..), I did it in my proje...

Seems there's no endpoint descriptor for any OUT EP in the default configuration descriptor in usbdrv.c. What does error -22 mean ?

Or just start here -- http://www.obdev.at/products/avrusb/index.html

You don't need a makefile if you let AVR Studio use its built-in support for WinAVR. The current version of the 3DP-Vert project archive contains AVRS *.aps files that allow you build the hex images from w/in AVRS -- pretty straight forward. Edit: the makefiles included are intended to be used only ...

Take a look at the code generated by the GNU compiler. But then, you can as well add a small main() function and call your assembler code from there..