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-rw-r--r--tmk_core/common/wait.h11
1 files changed, 8 insertions, 3 deletions
diff --git a/tmk_core/common/wait.h b/tmk_core/common/wait.h
index bdcb3f2a4..553f5243f 100644
--- a/tmk_core/common/wait.h
+++ b/tmk_core/common/wait.h
@@ -11,10 +11,15 @@ extern "C" {
# include <util/delay.h>
# define wait_ms(ms) _delay_ms(ms)
# define wait_us(us) _delay_us(us)
-#elif defined(PROTOCOL_CHIBIOS)
+#elif defined PROTOCOL_CHIBIOS
# include "ch.h"
-# define wait_ms(ms) chThdSleepMilliseconds(ms)
-# define wait_us(us) chThdSleepMicroseconds(us)
+# if defined(STM32F3xx_MCUCONF)
+# define wait_ms(ms) chSysPolledDelayX(MS2RTC(STM32_HCLK, (ms)))
+# define wait_us(us) chSysPolledDelayX(US2RTC(STM32_HCLK, (us)))
+# else
+# define wait_ms(ms) chThdSleepMilliseconds(ms)
+# define wait_us(us) chThdSleepMicroseconds(us)
+# endif
#elif defined(__arm__)
# include "wait_api.h"
#else // Unit tests