Search found 3 matches
- Sat Feb 26, 2011 10:13 am
- Forum: V-USB
- Topic: how to use interrupt out transfer in vusb
- Replies: 3
- Views: 6880
Re: how to use interrupt out transfer in vusb
first you need to declare in usb configuration . follow these steps: 1- go to usbdrv.c 2- find this line: PROGMEM char usbDescriptorConfiguration[] = { /* USB configuration descriptor */ 3- add seven bites to the length of descriptor as followed in this line: 18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + ...
- Sat Feb 26, 2011 9:53 am
- Forum: V-USB
- Topic: #error "You must define USB_CFG_IOPORTNAME in usbconfig.h.."
- Replies: 10
- Views: 10814
Re: #error "You must define USB_CFG_IOPORTNAME in usbconfig.h.."
An advice: I have spent many years of my life insisting on Assembly and things like AVRStudio and spoilng every second in codes. I really advise you to use WinAVR. you can also use it in Visual Studio and benefit from its strong Intellisense and so on.
- Sat Feb 26, 2011 9:41 am
- Forum: V-USB
- Topic: usbPoll() in Timer0 interrupt routine.
- Replies: 2
- Views: 4442
Re: usbPoll() in Timer0 interrupt routine.
If you put big codes in main loop your device will not be seen in next system enumeration. calling usbpoll() in short intervals is mandatory for device recognition. if you are using a watchdog dont forget to reset it during your calculations.