Objective Development Forums

AVR USB unknown device

2008-04-08T18:18:52+02:00

Hi christian,

After a driver clean up and the latest drivers installation, PowerSwitch become to work!

Thanks for your support and patience.

cheers

Statistics: Posted by deltaar — Tue Apr 08, 2008 6:18 pm

AVR USB unknown device

2008-04-07T19:10:00+02:00

This must be a problem with libusb-win32. Please remove everything related to this lib and install it from scratch. Maybe a web search brings up something relevant.

Statistics: Posted by christian — Mon Apr 07, 2008 7:10 pm

AVR USB unknown device

2008-04-07T18:48:51+02:00

Hi christian,

Ok thanks and sorry for the delay.

First I have to solve a pendent problem; I hope you or someone on the forum may help. Every time I try to send a command in the PowerSwitch command line, such as "...PowerSwitch status" the computer shows up a blue screen and reboots!

In my previous attempts with usb drivers there was a time I have installed the filter-drivers. I also read somewhere they aren't necessary unless one want to make development. So, I uninstalled them, but the problem persists (I have installed and uninstalled them using the install-filter.exe directly from de DOS console, not the win32 app).

Any idea?

Cheers.

Statistics: Posted by deltaar — Mon Apr 07, 2008 6:48 pm

AVR USB unknown device

2008-04-01T14:29:28+02:00

Regarding the console app: well, yes. It's intended to be called from the command line. Open a DOS window and run the command by typing its name.

Statistics: Posted by christian — Tue Apr 01, 2008 2:29 pm

AVR USB unknown device

2008-03-31T22:44:13+02:00

Hi.

For the GUI thank you, I'll try that.

The "appears and instantly disappears" happens with the console application. I open it and it closes right away...

Thanks.

Statistics: Posted by deltaar — Mon Mar 31, 2008 10:44 pm

AVR USB unknown device

2008-03-31T14:37:39+02:00

What do you mean with "appears and instantly disappears"?

The GUI tool seems to be compiled for a customized device name, maybe even a different vendor name. You can try to change the name of the device accordingly.

Statistics: Posted by christian — Mon Mar 31, 2008 2:37 pm

AVR USB unknown device

2008-03-29T20:59:34+02:00

Hi again.

I've good and bad news.

The good news are: I was able to put windows xp to recognize PowerSwitch and the drivers look like to be properly installed. The USB looks like to be working. When I set the fuses in PonyProg I didn't choose write, instead I was choosing ok...

The bad news: the PowerSwitch.exe (in the commandline folder) appears and instantly disappears.
I've tried to use the graphical power switch command, but it says:
"Could not find USB device "kszPowerSwitch" with vid=0x16c0 pid=0x5dc." I've checked the vid and pid in the hardware manager and they are the same...

Any ideas?

Thanks.

PS: I only need the PowerSwitch.exe to be working.

Statistics: Posted by deltaar — Sat Mar 29, 2008 8:59 pm

AVR USB unknown device

2008-03-29T14:27:30+02:00

Hi.

I was able to download the firmware again using other PC with serial port.

The problem persists.

I also change the MCU by other (DIP version this time), but I've the same problem.

I’ve an idea, maybe I should try something simpler such as flashing an LED or something like that to make sure the firmware is being correctly downloaded and the MCU is running. Do you have any hex file for the tiny2313 I can use for this purpose? I’ll look for something on the internet.

Thanks.

Statistics: Posted by deltaar — Sat Mar 29, 2008 2:27 pm

AVR USB unknown device

2008-03-29T14:02:23+02:00

I don't think that it is technically possible to flash through USB to RS232 converters reliably. USB support in PonyProg may refer to USB based programmers.

I would recommend that you build a simple programmer such as USBasp. You can flash it with a computer which has RS232 or a parallel port.

Statistics: Posted by christian — Sat Mar 29, 2008 2:02 pm

AVR USB unknown device

2008-03-28T18:43:05+02:00

Ok, finally I was able to set the AVR tools to work and to generate the hex file.

Do you know any flashing tool that works well with USB to serial converter to download the firmware to the MCU?

Thanks in advance.

Statistics: Posted by deltaar — Fri Mar 28, 2008 6:43 pm