| ??? 01/27/06 12:56 Read: times |
#108493 - SourceUSB Responding to: ???'s previous message |
Software USB protocol analyzer doesn't work until the device is enumerated.
SourceUSB (www.sourcequest.com) is announced exceptionally that it works on enumeration process, but actually only after SET_ADDRESS. It drops still the first GET_DESCRIPTOR. Therefore, the observation on SourceUSB doesn't tell what is going on exactly. Should I answer the host anything before receiving the GET_DESCRIPTOR? The device must do only what the host is telling it to do, no more, no less. If it can't, return stall. That is the USB way. Do I have to reset the device manually in the firmware to move to Default state or the MCU hardware does it itself? Check the USB Bootloader update Tsuneo |
| Topic | Author | Date |
| AT89C5131 - setup packet | 01/01/70 00:00 | |
| Start with a working code | 01/01/70 00:00 | |
| GET_DESCRIPTOR | 01/01/70 00:00 | |
SourceUSB | 01/01/70 00:00 | |
| USB Bootloader update | 01/01/70 00:00 |