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-rw-r--r--src/arch/arduino-nano/Makefile.inc4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/arch/arduino-nano/Makefile.inc b/src/arch/arduino-nano/Makefile.inc
index d481fa2..18a6563 100644
--- a/src/arch/arduino-nano/Makefile.inc
+++ b/src/arch/arduino-nano/Makefile.inc
@@ -32,6 +32,10 @@ ifneq ($(findstring stdin,${arch_drivers}), )
TARGETS += src/arch/arduino-nano/driver/stdin.cc
endif
+ifneq (${i2c_freq}, )
+ COMMON_FLAGS += -DF_I2C=${i2c_freq}
+endif
+
OBJECTS = ${TARGETS:.cc=.o}
.cc.o: