diff --git a/Ubiquitous/XiZi_IIoT/Makefile b/Ubiquitous/XiZi_IIoT/Makefile
index 251cd08de..c51dfa9cd 100755
--- a/Ubiquitous/XiZi_IIoT/Makefile
+++ b/Ubiquitous/XiZi_IIoT/Makefile
@@ -62,10 +62,6 @@ PART += COMPILE_KERNEL
 else ifeq ($(CONFIG_COMPILER_APP)_$(CONFIG_COMPILER_KERNEL),y_y)
 PART := COMPILE_APP COMPILE_KERNEL
 
-else ifeq ($(CONFIG_MCUBOOT_BOOTLOADER), y)
-PART := COMPILE_BOOTLOADER
-else ifeq ($(CONFIG_MCUBOOT_APPLICATION), y)
-PART := COMPILE_APPLICATION
 else
 PART := 
 
@@ -77,9 +73,16 @@ ifeq ($(CONFIG_RESOURCES_LWIP), y)
 PART += COMPILE_LWIP
 endif
 
+ifeq ($(CONFIG_MCUBOOT_BOOTLOADER), y)
+PART += COMPILE_BOOTLOADER
+else ifeq ($(CONFIG_MCUBOOT_APPLICATION), y)
+PART += COMPILE_APPLICATION
+else
 PART += COMPILE_ALL
 endif
 
+endif
+
 
 all: $(PART)
 
diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/config.mk b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/config.mk
index 4da08fe5c..4085d6c06 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/config.mk
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/config.mk
@@ -1,8 +1,8 @@
 export CROSS_COMPILE ?=/usr/bin/arm-none-eabi-
 
-export CFLAGS := -mcpu=cortex-m7 -mthumb  -ffunction-sections -fdata-sections -Dgcc -O0 -gdwarf-2 -g -fgnu89-inline -Wa,-mimplicit-it=thumb
+export CFLAGS := -mcpu=cortex-m7 -mthumb  -ffunction-sections -fdata-sections -Dgcc -O1 -fgnu89-inline -Wa,-mimplicit-it=thumb
 
-export AFLAGS := -c -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -x assembler-with-cpp -Wa,-mimplicit-it=thumb  -gdwarf-2
+export AFLAGS := -c -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -x assembler-with-cpp -Wa,-mimplicit-it=thumb
 ### if use USB function, use special lds file because USB uses ITCM
 
 ifeq ($(CONFIG_LIB_MUSLLIB), y)
@@ -25,7 +25,7 @@ else
 export LFLAGS += -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -Wl,--gc-sections,-Map=XiZi-xidatong-arm32.map,-cref,-u,Reset_Handler -T $(BSP_ROOT)/link.lds
 endif
 
-export CXXFLAGS := -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -Dgcc -O0 -gdwarf-2 -g
+export CXXFLAGS := -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -Dgcc -O1
 
 export APPLFLAGS := -mcpu=cortex-m7 -mthumb -ffunction-sections -fdata-sections -Wl,--gc-sections,-Map=XiZi-app.map,-cref,-u, -T $(BSP_ROOT)/link_userspace.lds
 
diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-application.lds b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-application.lds
index 6769453e6..c0467d14b 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-application.lds
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-application.lds
@@ -56,7 +56,7 @@ MEMORY
   m_interrupts          (RX)  : ORIGIN = 0x60100000, LENGTH = 0x00000400
   m_text                (RX)  : ORIGIN = 0x60100400, LENGTH = 0x000FFC00
 
-  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00020000
+  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00060000
   m_data2               (RW)  : ORIGIN = 0x20200000, LENGTH = 0x00060000
 
   m_sdram               (RW)  : ORIGIN = 0x80000000, LENGTH = 0x01E00000
diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-bootloader.lds b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-bootloader.lds
index 4ce000519..448b35d98 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-bootloader.lds
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link-bootloader.lds
@@ -60,7 +60,7 @@ MEMORY
   m_interrupts          (RX)  : ORIGIN = 0x60002000, LENGTH = 0x00000400
   m_text                (RX)  : ORIGIN = 0x60002400, LENGTH = 0x0007DC00
 
-  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00020000
+  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00060000
   m_data2               (RW)  : ORIGIN = 0x20200000, LENGTH = 0x00060000
 
   m_sdram               (RW)  : ORIGIN = 0x80000000, LENGTH = 0x01E00000
diff --git a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link.lds b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link.lds
index 0147853db..73c2c72fd 100644
--- a/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link.lds
+++ b/Ubiquitous/XiZi_IIoT/board/xidatong-arm32/link.lds
@@ -58,7 +58,7 @@ MEMORY
     
   m_interrupts          (RX)  : ORIGIN = 0x60002000, LENGTH = 0x00000400
   m_text                (RX)  : ORIGIN = 0x60002400, LENGTH = 0x03FFDC00
-  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00020000
+  m_data                (RW)  : ORIGIN = 0x20000000, LENGTH = 0x00060000
   m_data2               (RW)  : ORIGIN = 0x20200000, LENGTH = 0x00060000
 
   m_sdram               (RW)  : ORIGIN = 0x80000000, LENGTH = 0x01E00000