Ok, I tried but no luck. The LUFA bootloader works right (led is working at pc6) but still no luck with usb.
I also tried a lot of configurations, with internal RC oscilator, with external clock. The bootloader seems to be working right because of the led (both LUA and Caterina-Leonardo) usb connection stills fails.
I tried out all of this configurations after study the 32u4 datasheet and the avr fuse calculator (every time with the right clock or oscilator configuration in the board, i mean, with a 16mhz external clock signal or without oscilator, or with an 16mhz external cristal)
1)
external oscilator with clock out
avrdude: safemode: lfuse reads as BF
avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
avrdude: safemode: Fuses OK
2)
external oscilator with clock out and dividing 8 times o clock
avrdude: Device signature = 0x1e9587
avrdude: safemode: lfuse reads as 3F
avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
3)
external clock signal and clock out
avrdude: Device signature = 0x1e9587
avrdude: safemode: lfuse reads as 92
avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
4)
external clock signal and clock out
avrdude: safemode: lfuse reads as A2
avrdude: safemode: hfuse reads as D8
avrdude: safemode: efuse reads as CB
avrdude: safemode: Fuses OK
nothing works.
I'm start thinking that the chip has a problem...which is really bad.
If anyone have any idea or anything else to test, it would be great.
I also had tested continuity from the chip microcontroller to the end of the usb wire, and its fine.
I had tested voltage in every pin of the microcontroller, and everything its perfect.
