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# Import environment set for AVR-GCC.
Import('env_avr')
# Create target environment by cloning AVR environment.
env_target = env_avr.Clone()
# Declare some variables about microcontroller.
# Microcontroller type.
DEVICE = 'atmega328p'
# Microcontroller frequency.
CPU_FREQUENCY = '16000000UL' # Hz
# Set environment for an Atmel AVR ATmega328p microcontroller.
env_target.Append(CCFLAGS = '-mmcu=' + DEVICE)
env_target.Append(LINKFLAGS = '-mmcu=' + DEVICE)
env_target.Append(CPPDEFINES = 'F_CPU=' + CPU_FREQUENCY)
# Export environment set for target.
Export('env_target', 'DEVICE')