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-rw-r--r--keyboards/handwired/onekey/teensy_32/rules.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/keyboards/handwired/onekey/teensy_32/rules.mk b/keyboards/handwired/onekey/teensy_32/rules.mk
index 97171611ef..2c411c0eb6 100644
--- a/keyboards/handwired/onekey/teensy_32/rules.mk
+++ b/keyboards/handwired/onekey/teensy_32/rules.mk
@@ -39,3 +39,7 @@ MCU = cortex-m4
# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7
# I.e. 6 for Teensy LC; 7 for Teensy 3.x
ARMV = 7
+
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE