diff --git a/driver/board_driver/01-led/led.s b/driver/board_driver/01-led/led.s
index 1de7c1f..18bf2fd 100644
--- a/driver/board_driver/01-led/led.s
+++ b/driver/board_driver/01-led/led.s
@@ -1,17 +1,12 @@
-
-
-.global _start
+.global _start  @ 声明入口为_start
 
 _start:
-    ldr sp, =0x40000000
-    b main
+    ldr sp, =0x40000000  @ 设置栈指针（根据硬件调整地址）
 
-main:
-    ldr r0, =0x40000000
-    ldr r1, =0x00000001
-    str r1, [r0]
-    ldr r0, =0x40000000
-    ldr r1, =0x00000000
-    str r1, [r0]
-    b main
+    @ 这里写你的LED操作代码（示例：往寄存器写值）
+    ldr r0, =0x40000000  @ 假设LED寄存器地址是0x40000000
+    ldr r1, =0x01        @ 要写入的值（点亮LED）
+    str r1, [r0]         @ 把r1的值写入r0指向的地址
 
+loop:
+    b loop  @ 死循环（防止程序跑飞）
\ No newline at end of file
diff --git a/driver/board_driver/01-led/makefile b/driver/board_driver/01-led/makefile
index 58ce346..d3aed86 100644
--- a/driver/board_driver/01-led/makefile
+++ b/driver/board_driver/01-led/makefile
@@ -1,7 +1,15 @@
 
-led:led.s
-	arm-linux-gnueabihf-gcc -c -nostdlib led.s
-	arm-linux-gnueabihf-gcc -o led led.o
+
+CC = arm-linux-gnueabihf-gcc
+CFLAG = -c -nostdlib
+LDFLAGS = -nostdlib
+
+
+led:led.o
+	$(CC) $(LDFLAGS) led.o -o led
+
+led.o:led.s
+	$(CC) $(CFLAG) led.s -o led.o
 
 clean:
 	rm -f *.o