diff --git a/Libraries/SoftSPI_HAL_Lib b/Libraries/SoftSPI_HAL_Lib
index 645e976..e6d62c9 160000
--- a/Libraries/SoftSPI_HAL_Lib
+++ b/Libraries/SoftSPI_HAL_Lib
@@ -1 +1 @@
-Subproject commit 645e976d42783ba608ec5c14cdc3cfbf16427a04
+Subproject commit e6d62c90e63c2e973893a098dc98ec67b4c5fd99
diff --git a/Project/MasterNode.uvprojx b/Project/MasterNode.uvprojx
index 4c60cb0..16216e5 100644
--- a/Project/MasterNode.uvprojx
+++ b/Project/MasterNode.uvprojx
@@ -313,7 +313,7 @@
           </ArmAdsMisc>
           <Cads>
             <interw>1</interw>
-            <Optim>7</Optim>
+            <Optim>1</Optim>
             <oTime>0</oTime>
             <SplitLS>0</SplitLS>
             <OneElfS>1</OneElfS>
@@ -339,7 +339,7 @@
               <MiscControls></MiscControls>
               <Define>USE_HAL_DRIVER, STM32F103x6</Define>
               <Undefine></Undefine>
-              <IncludePath>..\Core;..\Libraries\HAL_Lib\Inc;..\User\Main;..\System\sys;..\System\systick;..\System\uart;..\Hardware\led</IncludePath>
+              <IncludePath>..\Core;..\Libraries\HAL_Lib\Inc;..\Libraries\SoftSPI_HAL_Lib;..\User\Main;..\System\sys;..\System\systick;..\System\uart;..\Hardware\led</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -635,6 +635,21 @@
             </File>
           </Files>
         </Group>
+        <Group>
+          <GroupName>SoftSPI_HAL_Lib</GroupName>
+          <Files>
+            <File>
+              <FileName>softspi_conf.h</FileName>
+              <FileType>5</FileType>
+              <FilePath>..\Libraries\SoftSPI_HAL_Lib\softspi_conf.h</FilePath>
+            </File>
+            <File>
+              <FileName>softspi.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Libraries\SoftSPI_HAL_Lib\softspi.c</FilePath>
+            </File>
+          </Files>
+        </Group>
         <Group>
           <GroupName>System</GroupName>
           <Files>
diff --git a/User/Main/main.c b/User/Main/main.c
index 214dbd0..bf8274a 100644
--- a/User/Main/main.c
+++ b/User/Main/main.c
@@ -1,20 +1,25 @@
 /**
  * @file    main.c
  * @author  Myth
- * @version 0.1
- * @date    2021.10.11
+ * @version 0.2
+ * @date    2021.10.12
  * @brief   工程主函数文件
  * @details 初始化及主循环
- * @note    工程模版实现的功能：串口回显，回显时 PC13 上的 LED 闪烁
+ * @note    此版本实现功能：
+ *          串口回显，回显时 PC13 上的 LED 闪烁
+ *          软件 SPI
  */
 
 #include "sys.h"
 #include "systick.h"
 #include "uart.h"
 
+#include "softspi.h"
+
 #include "led.h"
 
 void Echo(uint8_t byte);
+void Test_SoftSPI_Init(void);
 
 int main(void)
 {
@@ -30,9 +35,14 @@ int main(void)
 
     UART_BindReceiveHandle(COM1, Echo); //绑定 COM1 串口接收中断至 Echo 函数
 
+    Test_SoftSPI_Init(); //软件 SPI 测试初始化
+    uint8_t write[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+    uint8_t read[10];
     while (1)
     {
         //程序主循环
+        SoftSPI_WriteReadBuff(write, read, 10);
+        Delay_us(100);
     }
 
     return 1;
@@ -47,3 +57,26 @@ void Echo(uint8_t byte)
     LED1_Slow_Toggle;
     UART_SendChar(COM1, byte);
 }
+
+/**
+  * @brief  软件 SPI 测试初始化
+  */
+void Test_SoftSPI_Init(void)
+{
+    SoftSPI_InitTypeDef SoftSPI_Initure;
+
+    SoftSPI_Initure.SCLK_GPIO = GPIOB;
+    SoftSPI_Initure.SCLK_Pin = GPIO_PIN_10;
+    SoftSPI_Initure.MOSI_GPIO = GPIOA;
+    SoftSPI_Initure.MOSI_Pin = GPIO_PIN_5;
+    SoftSPI_Initure.MISO_GPIO = GPIOA;
+    SoftSPI_Initure.MISO_Pin = GPIO_PIN_4;
+    SoftSPI_Initure.SS_GPIO = GPIOA;
+    SoftSPI_Initure.SS_Pin = GPIO_PIN_6;
+    SoftSPI_Initure.Delay_Time = 10;
+
+    if (SoftSPI_Init(&SoftSPI_Initure) != HAL_OK) //初始化软件 SPI
+    {
+        Error_Handler(__FILE__, __LINE__); //错误处理
+    }
+}