From d1f77fc9f56e67993938988956957f08d86c0824 Mon Sep 17 00:00:00 2001
From: _--___ <2281979437@qq.com>
Date: Thu, 19 Jul 2018 18:09:16 +0800
Subject: [PATCH] clock bug

change to APB1
---
 bsp/stm32f10x/drivers/stm32f1_i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bsp/stm32f10x/drivers/stm32f1_i2c.c b/bsp/stm32f10x/drivers/stm32f1_i2c.c
index 5ba942f41..e34cd0c63 100644
--- a/bsp/stm32f10x/drivers/stm32f1_i2c.c
+++ b/bsp/stm32f10x/drivers/stm32f1_i2c.c
@@ -513,7 +513,7 @@ rt_err_t stm32_i2c_register(I2C_TypeDef *I2C, rt_uint32_t bitrate,
     if(I2C == I2C1)
     {
         pi2c = &stm32_i2c1;
-        RCC_APB2PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
     }
     else
 #endif /*RT_USING_I2C1*/
-- 
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