| ??? 01/12/06 20:09 Read: times |
#107197 - OHCI or UHCI Responding to: ???'s previous message |
VID '0000' & PID '0000' shows enumeration failure.
Which host controller interface (HCI) the "some computer" equips, OHCI (Open HCI) or UHCI (Universal HCI)? Check the driver of the host controller on the device manager of the PC. Double click the host controller under 'USB controller' tree on the device manager. 'driver' tab - 'driver detail' One of the driver file should be assigned to following one for FS/LS controller. usbuhci.sys - UHCI usbohci.sys - OHCI If your device always fails on the PC which has the same HCI, the enumeration handling has minor bug. If the bootloader code is provided by Atmel, they should have checked it on both HCI... Tsuneo |
| Topic | Author | Date |
| Problem with 89C5131 bootloader | 01/01/70 00:00 | |
| show me the mon.. eeh schematic | 01/01/70 00:00 | |
| "testing" rather than "design" ? | 01/01/70 00:00 | |
| an example of "testing rather than desig | 01/01/70 00:00 | |
| standard design | 01/01/70 00:00 | |
| OHCI or UHCI | 01/01/70 00:00 | |
| maybe simpler | 01/01/70 00:00 | |
| all using uhci | 01/01/70 00:00 | |
| Works for me | 01/01/70 00:00 | |
schematic | 01/01/70 00:00 |