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-rw-r--r--demos/STM32/RT-STM32F446RE-NUCLEO64/mcuconf.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/demos/STM32/RT-STM32F446RE-NUCLEO64/mcuconf.h b/demos/STM32/RT-STM32F446RE-NUCLEO64/mcuconf.h
index 023647cc2..d592c5664 100644
--- a/demos/STM32/RT-STM32F446RE-NUCLEO64/mcuconf.h
+++ b/demos/STM32/RT-STM32F446RE-NUCLEO64/mcuconf.h
@@ -69,7 +69,7 @@
#define STM32_I2SSRC STM32_I2SSRC_PLLI2S
#define STM32_SAI1SEL STM32_SAI2SEL_PLLR
#define STM32_SAI2SEL STM32_SAI2SEL_PLLR
-#define STM32_CK48MSEL STM32_CK48MSEL_PLLSAI
+#define STM32_CK48MSEL STM32_CK48MSEL_PLLALT
#define STM32_PVD_ENABLE FALSE
#define STM32_PLS STM32_PLS_LEV0
#define STM32_BKPRAM_ENABLE FALSE