| ??? 02/26/06 09:34 Read: times |
#110813 - no usb bootloader Responding to: ???'s previous message |
the usb communication is not working! Even without driver
you should be able to read PID and VID via USBView. such a behavour is never a driver problem. Some Hints: - there is no usb bootloader (factory) programmed - D+ and D- not connected or reversed - 1.5k is connected to D- instead D+ (LowSpeed) Note you will see a unkown device if you have a 1k5 resistor at D+ or D-. So the Connect message does not mean anything As far as I recall plain chips have no usb bootloader but the RS232 bootloader. Try to use flip with the V24 port. Thomas |
| Topic | Author | Date |
| Atmel FLIP 2.4.4 | 01/01/70 00:00 | |
| Fix | 01/01/70 00:00 | |
| Didn't help | 01/01/70 00:00 | |
| It shouldn't be an 'unknown device' | 01/01/70 00:00 | |
| Privileges | 01/01/70 00:00 | |
| Problem with USB to Serial Adapter | 01/01/70 00:00 | |
| USB device | 01/01/70 00:00 | |
| usbview | 01/01/70 00:00 | |
| Reinstall driver | 01/01/70 00:00 | |
| YHM | 01/01/70 00:00 | |
| whatdoes "YHM" mean ? | 01/01/70 00:00 | |
| You have mail | 01/01/70 00:00 | |
| the why not say so? | 01/01/70 00:00 | |
| it's like RT*M | 01/01/70 00:00 | |
| actually Terry FYI (for your information | 01/01/70 00:00 | |
no usb bootloader | 01/01/70 00:00 | |
| isp | 01/01/70 00:00 | |
| Ah well | 01/01/70 00:00 | |
| hardware checks | 01/01/70 00:00 |