Objective Development Forums

Re: ATMEGA32 minimum system board MCU AVR Development Board

2014-01-06T12:44:42+02:00

Hi everybody.

I do not know how good google-translate will work.
But at least for all Germans speaking people: There is a very rich thread about the ATmega32 Minimum System Board in the German Mikrocontroller forum, see here: http://www.mikrocontroller.net/topic/288940#new

There you also can find working and precompiles example firmwares for the different version of the board, in order to get the USB up and running.

BR

Statistics: Posted by matrixstorm — Mon Jan 06, 2014 12:44 pm

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-13T22:07:22+02:00

Many thanks to vouvoume!
The Board is running now!

It seems to be an error in the Schematic:
http://lifewillbeshine.com/efu/atmega32board//minimum32 pcb_v1.2.pdf

USB D-MINUS is connected to PD7 and not PD0 (like shown in the Schematic)!

Again many thanks to vouvoume!

Statistics: Posted by Guest — Thu Jun 13, 2013 10:07 pm

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-10T03:43:22+02:00

Yes, that is issue 7: https://github.com/baerwolf/USBaspLoader/issues/7

Long story short: You should use a recent toolchain - the old ones are buggy.

Best regards

Statistics: Posted by Guest — Mon Jun 10, 2013 3:43 am

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-10T02:15:36+02:00

vouvoume wrote:Is there even some bootloader installed?

Maybe you first backup the contents of the MCUs flash and then try to install some different bootloader.

For example USBaspLoader (https://github.com/baerwolf/USBaspLoader) works with avrdude (therefore Arduino, too).
So with USBaspLoader you can eliminate the need for some extra software. The driver needed for USBaspLoader under Windows is the same as the driver for USBasp itself (surprise!). You can downloat this driver at: http://www.fischl.de/usbasp/

Best regards

This sounds a good choice. But when I tried to compile it with 12M Hz, I got the following error:
main.c: In function 'leaveBootloader':
main.c:250: warning: 'noreturn' function does return
main.c: At top level:
usbdrv/usbdrv.h:223: warning: 'usbFunctionDescriptor' used but never defined
c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/bin/ld.exe: address 0x200e of main.bin section .text is not within region text
c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/bin/ld.exe: address 0x200e of main.bin section .text is not within region text
make[1]: *** [main.bin] Error 1
make[1]: Leaving directory `D:/vusb-20100715/examples/usBaspLoader/firmware'
make: *** [do_firmware] Error 2

Without changing the default 16M Hz, the FIRMWARE can be complied with the above warning, but no error. Any idea? Thanks.

-Xiangrui

Statistics: Posted by xiangrui — Mon Jun 10, 2013 2:15 am

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-07T14:36:41+02:00

Hi rewe1966

You could desolder the IC and then prepare it with "Atmega Fusebit Doctor" (http://mdiy.pl/atmega-fusebit-doctor-hvpp/?lang=en) to cure the fuses.
Plese do not throw it away, most likely you can revive it...

Maybe you try out the V-USB skeleton of my DIY studentboard (http://matrixstorm.com/avr/tinyusbboard/#examples).
If you want we can make a swap - I send you one of these puppies customly sokdered and you send me your broken board?

My e-mail address is matrixstorm@gmx.de

Best regards

Statistics: Posted by Guest — Fri Jun 07, 2013 2:36 pm

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-07T10:31:01+02:00

@Vouvome: Hätte ja sein können...egal...Mail doch mal an rewell@gmx.de...über Hilfe wäre ich sehr dankbar...könnte dir auch ein Board zum Testen schicken (ich habe 3 aktuell, eins ist aber hin, FuseBits verdreht )

Now in English:
Do you know that board? It's still not working...I spend a lot of time and currently I think I give up...
thx Reinhold

Statistics: Posted by Guest — Fri Jun 07, 2013 10:31 am

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-07T09:37:58+02:00

Ne, dann nicht. Mit Wincor hatte ich noch nicht so viel zu tun.

MfG vouvoume

Statistics: Posted by Guest — Fri Jun 07, 2013 9:37 am

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-06T21:22:59+02:00

Gute Frage: Illmenau? WN Flaschen-Rücknahmeautomaten?

Statistics: Posted by Guest — Thu Jun 06, 2013 9:22 pm

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-06T21:04:35+02:00

Hehe, Germany, too.

(Hallo rewe1966, kennt man sich vielleicht irgendwoher? Ich komme aus Ilmenau/Thueringen.)

Best regards

Statistics: Posted by Guest — Thu Jun 06, 2013 9:04 pm

Re: ATMEGA32 minimum system board MCU AVR Development Board

2013-06-06T20:38:00+02:00

Hello Bob,
I use lfuse 0xCF hfuse: 0x9A
But I made several tries..not success

It's always the same error:
The Device is shown with Vendor ID 0 and Product ID also 0.
I can't install the driver with the LibUsb inf-wizard.exe.

Are you interested or does it make sense if I eMail you my Test Directory?
My EMail is rewell@gmx.de
Thanks for your help
Reinhold

PS: Where are you from? I come from Germany

Statistics: Posted by Guest — Thu Jun 06, 2013 8:38 pm