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-rw-r--r--components/utilities/ymodem/ymodem.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/components/utilities/ymodem/ymodem.h b/components/utilities/ymodem/ymodem.h
index daed61d15f..43ee6f5c10 100644
--- a/components/utilities/ymodem/ymodem.h
+++ b/components/utilities/ymodem/ymodem.h
@@ -52,7 +52,7 @@ enum rym_code {
#endif
/* how many ticks between two handshake code. */
#ifndef RYM_CHD_INTV_TICK
-#define RYM_CHD_INTV_TICK (RT_TICK_PER_SECOND / 4)
+#define RYM_CHD_INTV_TICK (RT_TICK_PER_SECOND * 3)
#endif
enum rym_stage {