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Bootloader for LilyPad USB? #2

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brunnels opened this issue Apr 26, 2015 · 1 comment
Open

Bootloader for LilyPad USB? #2

brunnels opened this issue Apr 26, 2015 · 1 comment

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@brunnels
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Lilypad USB has the same chip but is 3.3v at 8mhz. Could you please add compatibility for it as well?

@brunnels
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brunnels commented May 3, 2015

It was easy enough to modify the Makefile to build for 8mhz target and this works and makes the LilyPadUSB behave like the Leonardo but if you flash with the ArduinoIDE the OS can't enumerate the device. If you hit the reset button it will come back for a short time as expected and it's possible to flash again. I'm assuming there's something with the teensy usb_* files under TeeOnArduo/cores that are having issues with the 8mhz crystal. Teensy 2.0 supports going down to 8mhz clock speed by going with 3.3v but doesn't change the crystal.

[1662891.976645] usb 2-1.3.4: new full-speed USB device number 97 using ehci-pci
[1662892.384318] usb 2-1.3.4: device not accepting address 97, error -32
[1662892.456629] usb 2-1.3.4: new full-speed USB device number 98 using ehci-pci
[1662892.864346] usb 2-1.3.4: device not accepting address 98, error -32
[1662892.864669] hub 2-1.3:1.0: unable to enumerate USB device on port 4

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