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-rwxr-xr-xbsp/simulator/drivers/serial.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/bsp/simulator/drivers/serial.c b/bsp/simulator/drivers/serial.c
index 8f7567e439..72cbad3baf 100755
--- a/bsp/simulator/drivers/serial.c
+++ b/bsp/simulator/drivers/serial.c
@@ -164,7 +164,7 @@ static rt_size_t rt_serial_write(rt_device_t dev, rt_off_t pos, const void *buff
#endif
level = rt_hw_interrupt_disable();
- printf("%s", (char *)buffer);
+ fwrite(buffer, size, 1, stdout);
fflush(stdout);
rt_hw_interrupt_enable(level);
return size;