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-rw-r--r--bsp/rx/rtconfig.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/bsp/rx/rtconfig.h b/bsp/rx/rtconfig.h
index e1d6cb3fe8..364204696f 100644
--- a/bsp/rx/rtconfig.h
+++ b/bsp/rx/rtconfig.h
@@ -66,6 +66,7 @@
#define RT_USING_DEVICE_IPC
// <bool name="RT_USING_SERIAL" description="Using Serial" default="true" />
#define RT_USING_SERIAL
+#define RT_SERIAL_USING_DMA
/* SECTION: Console options */
#define RT_USING_CONSOLE