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-rw-r--r--keyboards/ergodox_stm32/rules.mk4
1 files changed, 4 insertions, 0 deletions
diff --git a/keyboards/ergodox_stm32/rules.mk b/keyboards/ergodox_stm32/rules.mk
index 1bf1a742ab..ab7b853f5d 100644
--- a/keyboards/ergodox_stm32/rules.mk
+++ b/keyboards/ergodox_stm32/rules.mk
@@ -30,3 +30,7 @@ NKRO_ENABLE = yes # USB Nkey Rollover
CUSTOM_MATRIX = yes # Custom matrix file
NKRO_ENABLE = yes # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
UNICODE_ENABLE = yes # Unicode
+
+
+# Enter lower-power sleep mode when on the ChibiOS idle thread
+OPT_DEFS += -DCORTEX_ENABLE_WFI_IDLE=TRUE