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Topic: Leonardo at 3.3V (Read 14 times) previous topic - next topic

m_pankau

Hi,

I want to run Leonardo at 3.3V and 7.3728MHz.
This crystal is because I must have a 115200 uart baudrate.
I use AVR ISP mkII  for programming that I why I don't need a hex file for bootloader

this is my boards.txt

leonardo3V3.name=Arduino Leonardo 3.3V 7.3728MHz
leonardo3V3.upload.protocol=avr109
leonardo3V3.upload.maximum_size=28672
leonardo3V3.upload.speed=57600
leonardo3V3.upload.disable_flushing=true
leonardo3V3.bootloader.low_fuses=0xfd
leonardo3V3.bootloader.high_fuses=0xd8
leonardo3V3.bootloader.extended_fuses=0xcb
leonardo3V3.bootloader.path=caterina
leonardo3V3.bootloader.file=Caterina-Leonardo.hex
leonardo3V3.bootloader.unlock_bits=0x3F
leonardo3V3.bootloader.lock_bits=0x2F
leonardo3V3.build.mcu=atmega32u4
leonardo3V3.build.f_cpu=7372800L
leonardo3V3.build.vid=0x2341
leonardo3V3.build.pid=0x8036
leonardo3V3.build.core=arduino
leonardo3V3.build.variant=leonardo

When I program via ISP my status LEDs are not light, so I suspect something is wrong.
Any idea ?

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