From 67f9b2e17e1fd66927bbed3667503065c9129c41 Mon Sep 17 00:00:00 2001
From: QuakeGod <12890699+quakegod@user.noreply.gitee.com>
Date: 星期五, 26 五月 2023 10:17:15 +0800
Subject: [PATCH] add README.md. add Readme.md

---
 Src/BSP.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/Src/BSP.c b/Src/BSP.c
index f2e255c..e312c08 100644
--- a/Src/BSP.c
+++ b/Src/BSP.c
@@ -596,10 +596,11 @@
   PA2   ------> USART2_TX
   PA3   ------> USART2_RX 
   */
+
   GPIO_InitStruct.Pin = LL_GPIO_PIN_1|LL_GPIO_PIN_2|LL_GPIO_PIN_3;
   GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
   GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
-  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
+  GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
   GPIO_InitStruct.Pull = LL_GPIO_PULL_NO;
   GPIO_InitStruct.Alternate = LL_GPIO_AF_1;
   LL_GPIO_Init(GPIOA, &GPIO_InitStruct);

--
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