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Diffstat (limited to 'keyboards/meira/promicro/rules.mk')
-rw-r--r-- | keyboards/meira/promicro/rules.mk | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/keyboards/meira/promicro/rules.mk b/keyboards/meira/promicro/rules.mk index 3c81f1b344..22e49971f1 100644 --- a/keyboards/meira/promicro/rules.mk +++ b/keyboards/meira/promicro/rules.mk @@ -1 +1,14 @@ +# Processor frequency. +# This will define a symbol, F_CPU, in all source code files equal to the +# processor frequency in Hz. You can then use this symbol in your source code to +# calculate timings. Do NOT tack on a 'UL' at the end, this will be done +# automatically to create a 32-bit value in your source code. +# +# This will be an integer division of F_USB below, as it is sourced by +# F_USB after it has run through any CPU prescalers. Note that this value +# does not *change* the processor frequency - it should merely be updated to +# reflect the processor speed set externally so that the code can use accurate +# software delays. +F_CPU = 16000000 + BLUETOOTH_ENABLE = no |