diff --git a/.vscode/launch.json b/.vscode/launch.json
index 376becfbf..bee775c30 100755
--- a/.vscode/launch.json
+++ b/.vscode/launch.json
@@ -6,14 +6,14 @@
             "type": "cortex-debug",
             "request": "launch",
             "interface": "swd",
-            "executable": "${workspaceFolder}/build/mkrtos/mkrtos_bootstrap/bootstrap.elf",
+            "executable": "${workspaceFolder}/build/output/bootstrap.elf",
             "servertype": "openocd",
             "cwd": "${fileDirname}",
-            // "miDebuggerPath": "/home/zhangzheng/gcc-arm-none-eabi-5_4-2016q3/bin/arm-none-eabi-gdb",
-            "device": "STM32F103RE",
+            "gdbPath": "/Users/zhangzheng/gcc-arm-none-eabi-10.3-2021.10/bin/arm-none-eabi-gdb",
+            "device": "STM32F103ZE",
             "configFiles": [
-                "interface/jlink.cfg",
-                "${workspaceFolder}/mkrtos_cfg/stm32f103ret6.cfg",
+                "interface/cmsis-dap.cfg",
+                "target/stm32f1x.cfg",
             ]
         },
         {
@@ -38,8 +38,8 @@
             "name": "(gdb) 启动",
             "type": "cppdbg",
             "request": "launch",
-            // "program": "${workspaceFolder}/build/output/bootstrap.elf",
-            "program": "${workspaceFolder}/build/output/mkrtos.elf",
+            "program": "${workspaceFolder}/build/output/bootstrap.elf",
+            // "program": "${workspaceFolder}/build/output/mkrtos.elf",
             "args": [],
             "stopAtEntry": true,
             "cwd": "${fileDirname}",
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 0d815b455..d6c5f065a 100755
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -6,9 +6,9 @@
 			"command": "openocd",
 			"args": [
 				"-f",
-				"interface/jlink.cfg",
+				"interface/cmsis-dap.cfg",
 				"-f",
-				"${workspaceFolder}/mkrtos_cfg/stm32f103ret6.cfg",
+				"target/stm32f1x.cfg",
                 "-c","init",
                 "-c","targets;reset halt;wait_halt;poll",
 				"-c","flash write_image erase unlock build/output/kernel.img 0x08000000",
diff --git a/configs/STM32F103ZET6_defconfig b/configs/STM32F103ZET6_defconfig
index 2a7e3d5cc..061f5baba 100644
--- a/configs/STM32F103ZET6_defconfig
+++ b/configs/STM32F103ZET6_defconfig
@@ -6,7 +6,7 @@ CONFIG_KNL_INFO=y
 CONFIG_KNL_TEXT_ADDR=0x8000000
 CONFIG_KNL_TEXT_SIZE=0x100000
 CONFIG_KNL_DATA_ADDR=0x20000000
-CONFIG_KNL_DATA_SIZE=0x2000000
+CONFIG_KNL_DATA_SIZE=0x10000
 CONFIG_KNL_OFFSET=0x2000
 CONFIG_INIT_TASK_OFFSET=0x10000
 CONFIG_BOOTFS_OFFSET=0x22000
diff --git a/mkrtos_bootstrap/bsp/STM32F1/stm32_start.c b/mkrtos_bootstrap/bsp/STM32F1/stm32_start.c
index 912d47ed7..158377c83 100644
--- a/mkrtos_bootstrap/bsp/STM32F1/stm32_start.c
+++ b/mkrtos_bootstrap/bsp/STM32F1/stm32_start.c
@@ -39,13 +39,14 @@ void jump2kernel(void)
         __set_FAULTMASK(0);
 
         /* initialize main stack pointer */
-        __set_MSP(*(__IO uint32_t *)KERNEL_IMG_START_ADDR);
+       
         __set_CONTROL(0);
 
         __ISB();
 
         __disable_irq();
 
+        //  __set_MSP(*(__IO uint32_t *)KERNEL_IMG_START_ADDR);
         /* Set new vector table pointer */
         jump_addr = *(__IO uint32_t *)(KERNEL_IMG_START_ADDR + 4);
         _main = (void *)jump_addr;
diff --git a/mkrtos_knl/stm32_link.lds b/mkrtos_knl/stm32_link.lds
index 3d9178ac2..e28c9d985 100644
--- a/mkrtos_knl/stm32_link.lds
+++ b/mkrtos_knl/stm32_link.lds
@@ -1,7 +1,7 @@
 ENTRY(Reset_Handler)
 MEMORY
 {
-  RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 0x2000000
+  RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 0x10000
   FLASH (rx) : ORIGIN = 0x8000000 + 0x2000, LENGTH = 64K - 0x2000
 }
 SECTIONS
diff --git a/mkrtos_user/server/init/src/init.cfg b/mkrtos_user/server/init/src/init.cfg
index 7b761f893..a5c1f6bff 100644
--- a/mkrtos_user/server/init/src/init.cfg
+++ b/mkrtos_user/server/init/src/init.cfg
@@ -3,3 +3,4 @@
 # fatfs
 cpiofs
 sh
+