Hi all
Please, I need your help determing why my PC recognises Igor Cesko's custom build IR as "unknown device"
I've paid some guy to build it for me and he did it by Igor's scheme. Here's the scheme:
http://img184.imagevenue.com/img.php?im ... _143lo.jpg
(Heres the link for Igor's page, but it's working lousy lately)
http://www.cesko.host.sk/IgorPlugUSB/Ig ... USB%20(AVR)_eng.htm
Here are the pictures of my IR:
Front:
http://img165.imagevenue.com/img.php?im ... _920lo.jpg
Back:
http://img151.imagevenue.com/img.php?im ... _816lo.jpg
Problem is when I plug IR in usb, I get message that it's unknown device and Windows don't even ask for drivers... In system manager, under USB section, the unknown device is listed but I cant force installation of drivers on it..
So question ism whats different on the scheme on Igors page and on my IR?
I've found a simmilar thread on this forum, but solution is not explained
http://forums.obdev.at/viewtopic.php?=&p=150
My PC spec:
Intel CD2 E2180
Gigabyte P35C DS3R mbo
WinXP SP2
Here's the spec. of hardware in my IR:
micro controller: ATMEL ATTINY2313-20PU
Igor Cesko's USB-IR as "Unknown device"?
Some guy made that for me...
problem is that after reinstall of windows, everything worked OK, but after another reinstall this started to happen
Also, Igor sent me response on my email, saying that I should read his FAQ in wich says:
"Q: After device plugin into USB port is the device not recognized - recognized only as "Unknown USB device".
A1: Problem of bad device detection is in hardware. In schematic you must add series resistors into USB data lines - see schematic on my website. You can increase the resistors from 68R up to 330R. And additionally you can connect Zener diodes (3.6V) to USB D+ and D- data lines. Problem appears mainly on notebooks and new computers. Usually is there no problem when you plug device into external USB hub. Problem is caused by high voltage coming from microcontroller to USB lines - allowed max. 3.6V (input current into computer USB port).
A2: If you are using ATtiny2313 you must set fuses during programming: disable division the external clock by 4 and enable high speed XTALL."
I guess this is my answer, but, I dunno now what to do - a guy which made that IR for me did it exactly by scheme on Igors page, so I'll have to pay him again to fix this (cause it isn't his fault that I need upgrade of my IR)...
problem is that after reinstall of windows, everything worked OK, but after another reinstall this started to happen
Also, Igor sent me response on my email, saying that I should read his FAQ in wich says:
"Q: After device plugin into USB port is the device not recognized - recognized only as "Unknown USB device".
A1: Problem of bad device detection is in hardware. In schematic you must add series resistors into USB data lines - see schematic on my website. You can increase the resistors from 68R up to 330R. And additionally you can connect Zener diodes (3.6V) to USB D+ and D- data lines. Problem appears mainly on notebooks and new computers. Usually is there no problem when you plug device into external USB hub. Problem is caused by high voltage coming from microcontroller to USB lines - allowed max. 3.6V (input current into computer USB port).
A2: If you are using ATtiny2313 you must set fuses during programming: disable division the external clock by 4 and enable high speed XTALL."
I guess this is my answer, but, I dunno now what to do - a guy which made that IR for me did it exactly by scheme on Igors page, so I'll have to pay him again to fix this (cause it isn't his fault that I need upgrade of my IR)...
I have make this system whitout IR part and it works really good, but I want to know what I can develop whit it , other that led, e.g a smaller DC motor or a led matrix or a temperatur sensor. If I want to develop this other parts, must I modify the Igor's firmware or I can with it. Also I make an other interface, What must I do ?