5 # This will define a symbol, F_CPU, in all source code files equal to the
6 # processor frequency in Hz. You can then use this symbol in your source code to
7 # calculate timings. Do NOT tack on a 'UL' at the end, this will be done
8 # automatically to create a 32-bit value in your source code.
10 # This will be an integer division of F_USB below, as it is sourced by
11 # F_USB after it has run through any CPU prescalers. Note that this value
12 # does not *change* the processor frequency - it should merely be updated to
13 # reflect the processor speed set externally so that the code can use accurate
21 # Target architecture (see library "Board Types" documentation).
24 # Input clock frequency.
25 # This will define a symbol, F_USB, in all source code files equal to the
26 # input clock frequency (before any prescaling is performed) in Hz. This value may
27 # differ from F_CPU if prescaling is used on the latter, and is required as the
28 # raw input clock is fed directly to the PLL sections of the AVR for high speed
29 # clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
30 # at the end, this will be done automatically to create a 32-bit value in your
33 # If no clock division is performed on the input clock inside the AVR (via the
34 # CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
37 # Interrupt driven control endpoint task(+60)
38 OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
41 # Bootloader selection
47 # atmega32a bootloadHID
51 # If you don't know the bootloader type, then you can specify the
52 # Boot Section Size in *bytes* by uncommenting out the OPT_DEFS line
54 # Teensy++ halfKay 1024
55 # Atmel DFU loader 4096
56 # LUFA bootloader 4096
58 # OPT_DEFS += -DBOOTLOADER_SIZE=4096