From 51b065f7dd59b51b5bbb9fbec418f408c0c39689 Mon Sep 17 00:00:00 2001
From: AceVest <zhaoyanbai@126.com>
Date: Mon, 17 Jun 2019 13:26:17 +0800
Subject: [PATCH] ...

---
 learn/stm32/USART.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/learn/stm32/USART.md b/learn/stm32/USART.md
index 12076be..52a8bd8 100644
--- a/learn/stm32/USART.md
+++ b/learn/stm32/USART.md
@@ -99,4 +99,14 @@ void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
 		return ReceiveUsartData(&usart2_data, huart);
 	}
 }
+```
+
+```
+  // main.c
+  InitUsartTransfer();
+
+  while (1)
+  {
+	  TransferUsartData();
+  }
 ```
\ No newline at end of file
-- 
2.44.0