diff --git a/bsp/stm32/docs/STM32系列外设驱动添加指南.md b/bsp/stm32/docs/STM32系列外设驱动添加指南.md
index 06df94f7e6..35ac2906c7 100644
--- a/bsp/stm32/docs/STM32系列外设驱动添加指南.md
+++ b/bsp/stm32/docs/STM32系列外设驱动添加指南.md
@@ -96,3 +96,17 @@
 |  11  | EMAC     | **配置 ETH 外设的工作模式（一般为 RMII 模式）**              |
 |  12  | SDRAM    | **需要根据板载的 SDRAM 型号配置片选脚，地址线，数据线等**    |
 
+### 5.3 PWM配置步骤
+
+ 1. 打开 STM32CubeMX 工程，设置 PWM 在 Cube 里的选项。如下图：
+
+ ![pwm CubeMX 配置](figures/pwm_config1.png)
+
+ 2. 打开 stm32/stm32f429-atk-apollo/board/Kconfig ，添加 Kconfig 选项。选中自己添加的选项后，生成一遍工程。如下图：
+
+ ![pwm Kconfig 配置](figures/pwm_config2.png)
+
+ 3. 打开工程进行编译，工程会提示 PWM2_CONFIG 未定义。 可以在 stm32/libraries/HAL_Drivers/config/f4/pwm_config.h 中进行定义。
+ 
+ ![pwm 编译](figures/pwm_config3.png)
+ ![pwm 编译](figures/pwm_config4.png)
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