| ??? 01/13/06 04:15 Read: times |
#107231 - all using uhci Responding to: ???'s previous message |
All of the 6 computers that i've tested, equiped with UHCI (usbuhci.sys). 2 of them always show 'device malfunction' and can't update the driver manualy. but the other are running well using FLIP, software provided by Atmel. So I think there's nothing problem with my design board.
FYI, I don't connect the Vbus from the PC to Vdd, because my device has its own power supply. I'm using 24MHz crystal oscilator. The bootloader is provided by Atmel which is already built in the chip. I've tried to debug with my own firmware and found that the communication stop after the get_descriptor (device descriptor) request code. Gde |
| 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 |