Objective Development Forums

Hi, I am trying to use two interface with two Interrupt In Endpoints, but some how, the device becomes slow and some times hangs. I have configured the following things to use endpoint 3: #define USB_CFG_HAVE_INTRIN_ENDPOINT 1 /* Define this to 1 if you want to compile a version with two endpoints: ...

Thanks for reply.. I did not make any change to the EasyLogger project, though I tried to solve the problem with the latest V-USB, but it doesn't help. The device did enumerate correctly but rather stangely my notebook took much longer to start-up than usual. (possibly pure coincidence) I don't thin...

Hi, I was trying the Easy Logger project to understand the internal RC oscillator calibration of ATtiny45. The device worked well until I restarted my PC (running on windows xp) with the device connected, then I get the message "USB device not recognized", i.e. the device fails to enumerat...

There are two more thing to check: 1. have you used an external 12 MHz crystal resonator on PB6 & PB7? 2. If you are using windows, have you tried to uninstall the "unknown device" and re-install it (by searching for new hardware) from the Device manager? The hid-mouse compiled project...

Have you tried some example like "hid-mouse" given in the folder "V-USB/examples" ? Have you checked your F_CPU configuration and corresponding Fuse bits? What development platform are you using? It should be no problem to use V-USB with ATmega88, I am using it for various purpos...

still struggling with this issue. I have uploaded my schematic to m I think it's correct. Its correct! I have changed the following settings in usbconfig.h (using the usbasp firmware) #define USB_CFG_IOPORTNAME D /* This is the port where the USB bus is connected. When you configure it to * "B...

Not finding any examples out there, and the common example on the net is missing the keyboard_mouse file. Seems I'm not the first person to realize that. but was wondering if I'm heading in the right direction. I need the Top-Level Collection method as far as I can tell. Is it just a mater of combi...

Grendel, Thanks again! I think now I get the Idea of IdleRate!, as far as I understood, the host sends the SET_IDLE request to notify the device that it can report "The key is still pressed" repetitively after some time delay for each report, which will effectively reduce unnecessary trans...

The idle rate is fairly well documented in HID 1.11, chap. 7.2.4. In general your device should only send a report if values change (eg. key pressed or released) or if idle_rate * 4ms elapsed (ie. resend last report. Applies only if idle_rate is not infiniy.) Sending a report resets the idle timer....

Hi, I am trying to implement two different interface in a single device, Not using ReportID, i.e. there should be two different interface descriptor each containing HID and endpoint descriptor, each HID descriptor has its Report descriptor(say one for keyboard with boot capabilities and the other is...