diff --git a/examples/i2c/i2c_ssd1306/CMakeLists.txt b/examples/i2c/i2c_ssd1306/CMakeLists.txt
new file mode 100644
index 00000000..1793ed08
--- /dev/null
+++ b/examples/i2c/i2c_ssd1306/CMakeLists.txt
@@ -0,0 +1,8 @@
+set(BSP_COMMON_DIR ${CMAKE_SOURCE_DIR}/bsp/bsp_common)
+set(TARGET_REQUIRED_PRIVATE_INCLUDE ${BSP_COMMON_DIR}/mcu_lcd)
+set(TARGET_REQUIRED_SRCS ${BSP_COMMON_DIR}/mcu_lcd/ssd1306.c ${BSP_COMMON_DIR}/mcu_lcd/font.c)
+set(mains main.c)
+generate_bin()
+
+
+
diff --git a/examples/i2c/i2c_ssd1306/cdk/i2c_ssd1306.cdkproj b/examples/i2c/i2c_ssd1306/cdk/i2c_ssd1306.cdkproj
new file mode 100644
index 00000000..22d8404c
--- /dev/null
+++ b/examples/i2c/i2c_ssd1306/cdk/i2c_ssd1306.cdkproj
@@ -0,0 +1,706 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Project Name="i2c_ssd1306" Version="1" Language="C">
+  <Description>CPU: RV32IMAFC
+Chip: bl70x
+Board: bl70x_iot
+  </Description>
+  <Dependencies Name="Debug"/>
+  <VirtualDirectory Name="app">
+    <File Name="../main.c">
+      <FileOption/>
+    </File>
+  </VirtualDirectory>
+  <VirtualDirectory Name="chip">
+    <VirtualDirectory Name="riscv">
+      <File Name="../../../../drivers/bl702_driver/startup/interrupt.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../drivers/bl702_driver/startup/system_bl702.c">
+        <FileOption/>
+      </File>
+    </VirtualDirectory>
+    <VirtualDirectory Name="startup">
+      <File Name="../../../../drivers/bl702_driver/startup/GCC/entry.S">
+        <FileOption/>
+      </File>
+      <File Name="../../../../drivers/bl702_driver/startup/GCC/start_load.c">
+        <FileOption/>
+      </File>
+    </VirtualDirectory>
+  </VirtualDirectory>
+  <VirtualDirectory Name="hal">
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_adc.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_dac.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_dma.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_gpio.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_i2c.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_i2s.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_mtimer.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_pwm.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_spi.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_timer.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_uart.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_usb.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_clock.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_cam.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_mjpeg.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_pm.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/hal_drv/src/hal_flash.c">
+      <FileOption/>
+    </File>
+  </VirtualDirectory>
+  <VirtualDirectory Name="std">
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_acomp.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_adc.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_aon.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_cam.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_clock.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_dac.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_dma.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_ef_ctrl.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_emac.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_glb.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_hbn.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_i2c.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_i2c_gpio_sim.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_i2s.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_ir.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_common.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_kys.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_l1c.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_mjpeg.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_pds.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_psram.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_pwm.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_qdec.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_romapi.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_romdriver.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sec_dbg.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sec_eng.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sf_cfg.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sf_cfg_ext.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sf_ctrl.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sflash.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_sflash_ext.c" ExcludeProjConfig="">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_spi.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_timer.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_uart.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_usb.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_xip_sflash.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/std_drv/src/bl702_xip_sflash_ext.c">
+      <FileOption/>
+    </File>
+  </VirtualDirectory>
+  <VirtualDirectory Name="bsp">
+    <VirtualDirectory Name="board">
+      <File Name="../../../../bsp/board/bl702/board.c">
+        <FileOption/>
+      </File>
+    </VirtualDirectory>
+    <VirtualDirectory Name="bsp_common">
+      <File Name="../../../../bsp/bsp_common/platform/bflb_platform.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../bsp/bsp_common/platform/syscalls.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../bsp/bsp_common/mcu_lcd/ssd1306.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../bsp/bsp_common/mcu_lcd/font.c"/>
+    </VirtualDirectory>
+  </VirtualDirectory>
+  <VirtualDirectory Name="common">
+    <File Name="../../../../common/device/drv_device.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../common/memheap/drv_mmheap.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../common/ring_buffer/ring_buffer.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../common/soft_crc/softcrc.c">
+      <FileOption/>
+    </File>
+    <File Name="../../../../common/misc/misc.c">
+      <FileOption/>
+    </File>
+  </VirtualDirectory>
+  <VirtualDirectory Name="script">
+    <File Name="../../../../tools/openocd/bl70x_gdb.init">
+      <FileOption/>
+    </File>
+    <File Name="../../../../drivers/bl702_driver/regs/bl70x_reg.svc">
+      <FileOption/>
+    </File>
+  </VirtualDirectory>
+  <MonitorProgress>
+    <DebugLaunch>154</DebugLaunch>
+    <FlashOperate>104</FlashOperate>
+  </MonitorProgress>
+  <VirtualDirectory Name="components">
+    <VirtualDirectory Name="fatfs">
+      <File Name="../../../../components/fatfs/diskio.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../components/fatfs/ff.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../components/fatfs/ffsystem.c">
+        <FileOption/>
+      </File>
+      <File Name="../../../../components/fatfs/ffunicode.c">
+        <FileOption/>
+      </File>
+    </VirtualDirectory>
+    <VirtualDirectory Name="shell">
+      <File Name="../../../../components/shell/shell.c">
+        <FileOption/>
+      </File>
+    </VirtualDirectory>
+    <VirtualDirectory Name="usb_stack">
+      <VirtualDirectory Name="class">
+        <VirtualDirectory Name="cdc">
+          <File Name="../../../../components/usb_stack/class/cdc/usbd_cdc.c">
+            <FileOption/>
+          </File>
+        </VirtualDirectory>
+        <VirtualDirectory Name="hid">
+          <File Name="../../../../components/usb_stack/class/hid/usbd_hid.c">
+            <FileOption/>
+          </File>
+        </VirtualDirectory>
+        <VirtualDirectory Name="msc">
+          <File Name="../../../../components/usb_stack/class/msc/usbd_msc.c">
+            <FileOption/>
+          </File>
+        </VirtualDirectory>
+      </VirtualDirectory>
+      <VirtualDirectory Name="core">
+        <File Name="../../../../components/usb_stack/core/usbd_core.c">
+          <FileOption/>
+        </File>
+      </VirtualDirectory>
+    </VirtualDirectory>
+  </VirtualDirectory>
+  <Dependencies Name="BuildSet"/>
+  <DebugSessions>
+    <watchExpressions/>
+    <memoryExpressions>;;;</memoryExpressions>
+    <statistics>;;MHZ;</statistics>
+    <peripheralTabs>
+      <Tab disFormat="Hex">glb</Tab>
+      <Tab disFormat="Hex">uart</Tab>
+    </peripheralTabs>
+    <WatchDisplayFormat>1</WatchDisplayFormat>
+    <LocalDisplayFormat>1</LocalDisplayFormat>
+    <debugLayout/>
+    <memoryTabColSizeExpressions>100:8;100:8;100:8;100:8;</memoryTabColSizeExpressions>
+  </DebugSessions>
+  <DebugSessions>
+    <watchExpressions/>
+    <memoryExpressions>;;;</memoryExpressions>
+    <statistics>;;MHZ;</statistics>
+    <peripheralTabs>
+      <Tab disFormat="Hex">glb</Tab>
+      <Tab disFormat="Hex">uart</Tab>
+    </peripheralTabs>
+    <WatchDisplayFormat>1</WatchDisplayFormat>
+    <LocalDisplayFormat>1</LocalDisplayFormat>
+    <debugLayout/>
+    <memoryTabColSizeExpressions>100:8;100:8;100:8;100:8;</memoryTabColSizeExpressions>
+  </DebugSessions>
+  <Dependencies Name="CK_Link_Debug"/>
+  <Dependencies Name="OpenOCD_Debug"/>
+  <BuildConfigs>
+    <BuildConfig Name="OpenOCD_Debug">
+      <Target>
+        <ROMBank Selected="1">
+          <ROM1>
+            <InUse>no</InUse>
+            <Start>0x23000000</Start>
+            <Size>0x100000</Size>
+          </ROM1>
+          <ROM2>
+            <InUse>no</InUse>
+            <Start>0x22014000</Start>
+            <Size>0x4000</Size>
+          </ROM2>
+          <ROM3>
+            <InUse>no</InUse>
+            <Start>0x42018000</Start>
+            <Size>0x8000</Size>
+          </ROM3>
+          <ROM4>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+          </ROM4>
+          <ROM5>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+          </ROM5>
+        </ROMBank>
+        <RAMBank>
+          <RAM1>
+            <InUse>yes</InUse>
+            <Start>0x42020000</Start>
+            <Size>0xc000</Size>
+            <Init>yes</Init>
+          </RAM1>
+          <RAM2>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM2>
+          <RAM3>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM3>
+          <RAM4>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM4>
+          <RAM5>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM5>
+        </RAMBank>
+        <CPU>rv32imafc</CPU>
+        <UseMiniLib>yes</UseMiniLib>
+        <Endian>little</Endian>
+        <UseHardFloat>no</UseHardFloat>
+        <UseEnhancedLRW>no</UseEnhancedLRW>
+        <UseContinueBuild>no</UseContinueBuild>
+        <UseSemiHost>no</UseSemiHost>
+      </Target>
+      <Output>
+        <OutputName>$(ProjectName)</OutputName>
+        <Type>Executable</Type>
+        <CreateHexFile>no</CreateHexFile>
+        <CreateBinFile>yes</CreateBinFile>
+        <Preprocessor>no</Preprocessor>
+        <Disassmeble>yes</Disassmeble>
+        <CallGraph>no</CallGraph>
+        <Map>yes</Map>
+      </Output>
+      <User>
+        <BeforeCompile>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName/>
+        </BeforeCompile>
+        <BeforeMake>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName/>
+        </BeforeMake>
+        <AfterMake>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName>$(ProjectPath)../../../../tools/bflb_flash_tool/bflb_mcu_tool.exe  --chipname=bl702 --interface=openocd --firmware="$(ProjectPath)/Obj/$(ProjectName).bin" </UserProgName>
+        </AfterMake>
+      </User>
+      <Compiler>
+        <Define>ARCH_RISCV;BFLB_USE_HAL_DRIVER;bl706_iot</Define>
+        <Undefine/>
+        <Optim>Optimize more (-O2)</Optim>
+        <DebugLevel>Default (-g)</DebugLevel>
+        <IncludePath>$(ProjectPath);$(ProjectPath)../;$(ProjectPath)../../../../components/fatfs;$(ProjectPath)../../../../components/freertos/Source/include;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../components/usb_stack/class/audio;$(ProjectPath)../../../../components/usb_stack/class/cdc;$(ProjectPath)../../../../components/usb_stack/class/hid;$(ProjectPath)../../../../components/usb_stack/class/msc;$(ProjectPath)../../../../components/usb_stack/class/video;$(ProjectPath)../../../../components/usb_stack/class/webusb;$(ProjectPath)../../../../components/usb_stack/class/winusb;$(ProjectPath)../../../../components/usb_stack/common;$(ProjectPath)../../../../components/usb_stack/core;$(ProjectPath)../../../../bsp/board/bl702;$(ProjectPath)../../../../bsp/bsp_common/platform;$(ProjectPath)../../../../common/libc/inc;$(ProjectPath)../../../../common/libc/inc/arm_gcc;$(ProjectPath)../../../../common/libc/inc/bits;$(ProjectPath)../../../../common/libc/inc/sys;$(ProjectPath)../../../../common/libc/src;$(ProjectPath)../../../../common/device;$(ProjectPath)../../../../common/list;$(ProjectPath)../../../../common/memheap;$(ProjectPath)../../../../common/misc;$(ProjectPath)../../../../common/ring_buffer;$(ProjectPath)../../../../common/soft_crc;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl702_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl702_driver/regs;$(ProjectPath)../../../../drivers/bl702_driver/startup;$(ProjectPath)../../../../drivers/bl702_driver/std_drv/inc;F:/bl_mcu_sdk/bsp/bsp_common/mcu_lcd</IncludePath>
+        <OtherFlags>-fshort-enums -fno-common -fms-extensions -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -Wall -Wshift-negative-value -Wchar-subscripts -Wformat -Wuninitialized -Winit-self -Wignored-qualifiers -Wunused -Wundef -msmall-data-limit=4 -std=c99</OtherFlags>
+        <Verbose>no</Verbose>
+        <Ansi>no</Ansi>
+        <Syntax>no</Syntax>
+        <Pedantic>no</Pedantic>
+        <PedanticErr>no</PedanticErr>
+        <InhibitWarn>no</InhibitWarn>
+        <AllWarn>yes</AllWarn>
+        <WarnErr>no</WarnErr>
+        <OneElfS>yes</OneElfS>
+        <Fstrict>no</Fstrict>
+      </Compiler>
+      <Asm>
+        <Define/>
+        <Undefine/>
+        <IncludePath>$(ProjectPath);$(ProjectPath)../;$(ProjectPath)../../../../components/fatfs;$(ProjectPath)../../../../components/freertos/Source/include;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../components/usb_stack/class/audio;$(ProjectPath)../../../../components/usb_stack/class/cdc;$(ProjectPath)../../../../components/usb_stack/class/hid;$(ProjectPath)../../../../components/usb_stack/class/msc;$(ProjectPath)../../../../components/usb_stack/class/video;$(ProjectPath)../../../../components/usb_stack/class/webusb;$(ProjectPath)../../../../components/usb_stack/class/winusb;$(ProjectPath)../../../../components/usb_stack/common;$(ProjectPath)../../../../components/usb_stack/core;$(ProjectPath)../../../../bsp/board/bl702;$(ProjectPath)../../../../bsp/bsp_common/platform;$(ProjectPath)../../../../common/device;$(ProjectPath)../../../../common/list;$(ProjectPath)../../../../common/memheap;$(ProjectPath)../../../../common/misc;$(ProjectPath)../../../../common/ring_buffer;$(ProjectPath)../../../../common/soft_crc;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl702_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl702_driver/regs;$(ProjectPath)../../../../drivers/bl702_driver/startup;$(ProjectPath)../../../../drivers/bl702_driver/std_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl602_driver/startup;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl602_driver/regs;$(ProjectPath)../../../../drivers/bl602_driver/std_drv/inc</IncludePath>
+        <OtherFlags/>
+        <DebugLevel>gdwarf2</DebugLevel>
+      </Asm>
+      <Linker>
+        <Garbage>yes</Garbage>
+        <Garbage2>yes</Garbage2>
+        <LDFile>$(ProjectPath)../../../../drivers/bl702_driver/bl702_flash.ld</LDFile>
+        <LibName>c</LibName>
+        <LibPath/>
+        <OtherFlags>--specs=nano.specs</OtherFlags>
+        <AutoLDFile>no</AutoLDFile>
+        <LinkType/>
+      </Linker>
+      <Debug>
+        <LoadApplicationAtStartup>yes</LoadApplicationAtStartup>
+        <Connector>OpenOCD</Connector>
+        <StopAt>yes</StopAt>
+        <StopAtText>main</StopAtText>
+        <InitFile/>
+        <AfterLoadFile>$(ProjectPath)/../../../../tools/openocd/bl70x_gdb.init</AfterLoadFile>
+        <AutoRun>yes</AutoRun>
+        <ResetType>Hard Reset</ResetType>
+        <SoftResetVal>23000000</SoftResetVal>
+        <ResetAfterLoad>no</ResetAfterLoad>
+        <Dumpcore>no</Dumpcore>
+        <DumpcoreText>$(ProjectPath)/$(ProjectName).cdkcore</DumpcoreText>
+        <ConfigICE>
+          <IP>localhost</IP>
+          <PORT>1025</PORT>
+          <CPUNumber>0</CPUNumber>
+          <Clock>2000</Clock>
+          <Delay>10</Delay>
+          <WaitReset>50</WaitReset>
+          <DDC>yes</DDC>
+          <TRST>no</TRST>
+          <DebugPrint>no</DebugPrint>
+          <Connect>Normal</Connect>
+          <ResetType>Hard Reset</ResetType>
+          <SoftResetVal>21000000</SoftResetVal>
+          <RTOSType>Bare Metal</RTOSType>
+          <DownloadToFlash>yes</DownloadToFlash>
+          <ResetAfterConnect>yes</ResetAfterConnect>
+          <GDBName/>
+          <GDBServerType>Local</GDBServerType>
+          <OtherFlags>-arch riscv</OtherFlags>
+        </ConfigICE>
+        <ConfigSIM>
+          <SIMTarget/>
+          <OtherFlags/>
+          <NoGraphic>yes</NoGraphic>
+          <Log>no</Log>
+          <SimTrace>no</SimTrace>
+        </ConfigSIM>
+        <ConfigOpenOCD>
+          <OpenOCDExecutablePath>openocd-hifive</OpenOCDExecutablePath>
+          <OpenOCDTelnetPortEnable>no</OpenOCDTelnetPortEnable>
+          <OpenOCDTelnetPort>4444</OpenOCDTelnetPort>
+          <OpenOCDTclPortEnable>no</OpenOCDTclPortEnable>
+          <OpenOCDTclPort>6666</OpenOCDTclPort>
+          <OpenOCDConfigOptions>-f ../../../../tools/openocd/if_rv_dbg_plus.cfg -f ../../../../tools/openocd/tgt_702.cfg</OpenOCDConfigOptions>
+        </ConfigOpenOCD>
+      </Debug>
+      <Flash>
+        <InitFile/>
+        <Erase>Erase Sectors</Erase>
+        <Algorithms Path="">bl70x_flasher.elf</Algorithms>
+        <Program>yes</Program>
+        <Verify>yes</Verify>
+        <ResetAndRun>no</ResetAndRun>
+        <ResetType>Hard Reset</ResetType>
+        <SoftResetVal/>
+        <External>no</External>
+        <Command/>
+        <Arguments/>
+      </Flash>
+    </BuildConfig>
+    <BuildConfig Name="CK_Link_Debug">
+      <Target>
+        <ROMBank Selected="1">
+          <ROM1>
+            <InUse>no</InUse>
+            <Start>0x23000000</Start>
+            <Size>0x100000</Size>
+          </ROM1>
+          <ROM2>
+            <InUse>no</InUse>
+            <Start>0x22014000</Start>
+            <Size>0x4000</Size>
+          </ROM2>
+          <ROM3>
+            <InUse>no</InUse>
+            <Start>0x42018000</Start>
+            <Size>0x8000</Size>
+          </ROM3>
+          <ROM4>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+          </ROM4>
+          <ROM5>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+          </ROM5>
+        </ROMBank>
+        <RAMBank>
+          <RAM1>
+            <InUse>yes</InUse>
+            <Start>0x42020000</Start>
+            <Size>0xc000</Size>
+            <Init>yes</Init>
+          </RAM1>
+          <RAM2>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM2>
+          <RAM3>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM3>
+          <RAM4>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM4>
+          <RAM5>
+            <InUse>no</InUse>
+            <Start/>
+            <Size/>
+            <Init>yes</Init>
+          </RAM5>
+        </RAMBank>
+        <CPU>rv32imafc</CPU>
+        <UseMiniLib>yes</UseMiniLib>
+        <Endian>little</Endian>
+        <UseHardFloat>no</UseHardFloat>
+        <UseEnhancedLRW>no</UseEnhancedLRW>
+        <UseContinueBuild>no</UseContinueBuild>
+        <UseSemiHost>no</UseSemiHost>
+      </Target>
+      <Output>
+        <OutputName>$(ProjectName)</OutputName>
+        <Type>Executable</Type>
+        <CreateHexFile>no</CreateHexFile>
+        <CreateBinFile>yes</CreateBinFile>
+        <Preprocessor>no</Preprocessor>
+        <Disassmeble>yes</Disassmeble>
+        <CallGraph>no</CallGraph>
+        <Map>yes</Map>
+      </Output>
+      <User>
+        <BeforeCompile>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName/>
+        </BeforeCompile>
+        <BeforeMake>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName/>
+        </BeforeMake>
+        <AfterMake>
+          <RunUserProg>no</RunUserProg>
+          <UserProgName>$(ProjectPath)../../../../tools/bflb_flash_tool/bflb_mcu_tool.exe  --chipname=bl702 --interface=openocd --firmware="$(ProjectPath)/Obj/$(ProjectName).bin" </UserProgName>
+        </AfterMake>
+      </User>
+      <Compiler>
+        <Define>ARCH_RISCV;BFLB_USE_HAL_DRIVER;bl706_iot</Define>
+        <Undefine/>
+        <Optim>Optimize more (-O2)</Optim>
+        <DebugLevel>Default (-g)</DebugLevel>
+        <IncludePath>$(ProjectPath);$(ProjectPath)../;$(ProjectPath)../../../../components/fatfs;$(ProjectPath)../../../../components/freertos/Source/include;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../components/usb_stack/class/audio;$(ProjectPath)../../../../components/usb_stack/class/cdc;$(ProjectPath)../../../../components/usb_stack/class/hid;$(ProjectPath)../../../../components/usb_stack/class/msc;$(ProjectPath)../../../../components/usb_stack/class/video;$(ProjectPath)../../../../components/usb_stack/class/webusb;$(ProjectPath)../../../../components/usb_stack/class/winusb;$(ProjectPath)../../../../components/usb_stack/common;$(ProjectPath)../../../../components/usb_stack/core;$(ProjectPath)../../../../bsp/board/bl702;$(ProjectPath)../../../../bsp/bsp_common/platform;$(ProjectPath)../../../../common/libc/inc;$(ProjectPath)../../../../common/libc/inc/arm_gcc;$(ProjectPath)../../../../common/libc/inc/bits;$(ProjectPath)../../../../common/libc/inc/sys;$(ProjectPath)../../../../common/libc/src;$(ProjectPath)../../../../common/device;$(ProjectPath)../../../../common/list;$(ProjectPath)../../../../common/memheap;$(ProjectPath)../../../../common/misc;$(ProjectPath)../../../../common/ring_buffer;$(ProjectPath)../../../../common/soft_crc;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl702_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl702_driver/regs;$(ProjectPath)../../../../drivers/bl702_driver/startup;$(ProjectPath)../../../../drivers/bl702_driver/std_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl602_driver/regs;$(ProjectPath)../../../../drivers/bl602_driver/std_drv/inc</IncludePath>
+        <OtherFlags>-fshort-enums -fno-common -fms-extensions -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -Wall -Wshift-negative-value -Wchar-subscripts -Wformat -Wuninitialized -Winit-self -Wignored-qualifiers -Wunused -Wundef -msmall-data-limit=4 -std=c99</OtherFlags>
+        <Verbose>no</Verbose>
+        <Ansi>no</Ansi>
+        <Syntax>no</Syntax>
+        <Pedantic>no</Pedantic>
+        <PedanticErr>no</PedanticErr>
+        <InhibitWarn>no</InhibitWarn>
+        <AllWarn>yes</AllWarn>
+        <WarnErr>no</WarnErr>
+        <OneElfS>yes</OneElfS>
+        <Fstrict>no</Fstrict>
+      </Compiler>
+      <Asm>
+        <Define/>
+        <Undefine/>
+        <IncludePath>$(ProjectPath);$(ProjectPath)../;$(ProjectPath)../../../../components/fatfs;$(ProjectPath)../../../../components/freertos/Source/include;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../components/usb_stack/class/audio;$(ProjectPath)../../../../components/usb_stack/class/cdc;$(ProjectPath)../../../../components/usb_stack/class/hid;$(ProjectPath)../../../../components/usb_stack/class/msc;$(ProjectPath)../../../../components/usb_stack/class/video;$(ProjectPath)../../../../components/usb_stack/class/webusb;$(ProjectPath)../../../../components/usb_stack/class/winusb;$(ProjectPath)../../../../components/usb_stack/common;$(ProjectPath)../../../../components/usb_stack/core;$(ProjectPath)../../../../bsp/board/bl702;$(ProjectPath)../../../../bsp/bsp_common/platform;$(ProjectPath)../../../../common/device;$(ProjectPath)../../../../common/list;$(ProjectPath)../../../../common/memheap;$(ProjectPath)../../../../common/misc;$(ProjectPath)../../../../common/ring_buffer;$(ProjectPath)../../../../common/soft_crc;$(ProjectPath)../../../../components/shell;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl702_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl702_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl702_driver/regs;$(ProjectPath)../../../../drivers/bl702_driver/startup;$(ProjectPath)../../../../drivers/bl702_driver/std_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/risc-v/Core/Include;$(ProjectPath)../../../../drivers/bl602_driver/startup;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/inc;$(ProjectPath)../../../../drivers/bl602_driver/hal_drv/default_config;$(ProjectPath)../../../../drivers/bl602_driver/regs;$(ProjectPath)../../../../drivers/bl602_driver/std_drv/inc</IncludePath>
+        <OtherFlags/>
+        <DebugLevel>gdwarf2</DebugLevel>
+      </Asm>
+      <Linker>
+        <Garbage>yes</Garbage>
+        <Garbage2>yes</Garbage2>
+        <LDFile>$(ProjectPath)../../../../drivers/bl702_driver/bl702_flash.ld</LDFile>
+        <LibName>c</LibName>
+        <LibPath/>
+        <OtherFlags>--specs=nano.specs</OtherFlags>
+        <AutoLDFile>no</AutoLDFile>
+        <LinkType/>
+      </Linker>
+      <Debug>
+        <LoadApplicationAtStartup>yes</LoadApplicationAtStartup>
+        <Connector>ICE</Connector>
+        <StopAt>yes</StopAt>
+        <StopAtText>main</StopAtText>
+        <InitFile/>
+        <AfterLoadFile>$(ProjectPath)/../../../../tools/openocd/bl70x_gdb.init</AfterLoadFile>
+        <AutoRun>yes</AutoRun>
+        <ResetType>Hard Reset</ResetType>
+        <SoftResetVal>23000000</SoftResetVal>
+        <ResetAfterLoad>no</ResetAfterLoad>
+        <Dumpcore>no</Dumpcore>
+        <DumpcoreText>$(ProjectPath)/$(ProjectName).cdkcore</DumpcoreText>
+        <ConfigICE>
+          <IP>localhost</IP>
+          <PORT>1025</PORT>
+          <CPUNumber>0</CPUNumber>
+          <Clock>2000</Clock>
+          <Delay>10</Delay>
+          <WaitReset>50</WaitReset>
+          <DDC>yes</DDC>
+          <TRST>no</TRST>
+          <DebugPrint>no</DebugPrint>
+          <Connect>Normal</Connect>
+          <ResetType>Hard Reset</ResetType>
+          <SoftResetVal>21000000</SoftResetVal>
+          <RTOSType>Bare Metal</RTOSType>
+          <DownloadToFlash>yes</DownloadToFlash>
+          <ResetAfterConnect>yes</ResetAfterConnect>
+          <GDBName/>
+          <GDBServerType>Local</GDBServerType>
+          <OtherFlags>-arch riscv</OtherFlags>
+        </ConfigICE>
+        <ConfigSIM>
+          <SIMTarget/>
+          <OtherFlags/>
+          <NoGraphic>yes</NoGraphic>
+          <Log>no</Log>
+          <SimTrace>no</SimTrace>
+        </ConfigSIM>
+        <ConfigOpenOCD>
+          <OpenOCDExecutablePath>openocd-hifive</OpenOCDExecutablePath>
+          <OpenOCDTelnetPortEnable>no</OpenOCDTelnetPortEnable>
+          <OpenOCDTelnetPort>4444</OpenOCDTelnetPort>
+          <OpenOCDTclPortEnable>no</OpenOCDTclPortEnable>
+          <OpenOCDTclPort>6666</OpenOCDTclPort>
+          <OpenOCDConfigOptions>-f ../../../../tools/openocd/if_rv_dbg_plus.cfg -f ../../../../tools/openocd/tgt_702.cfg</OpenOCDConfigOptions>
+        </ConfigOpenOCD>
+      </Debug>
+      <Flash>
+        <InitFile/>
+        <Erase>Erase Sectors</Erase>
+        <Algorithms Path="">bl702_flasher.elf</Algorithms>
+        <Program>yes</Program>
+        <Verify>yes</Verify>
+        <ResetAndRun>no</ResetAndRun>
+        <ResetType>Hard Reset</ResetType>
+        <SoftResetVal/>
+        <External>no</External>
+        <Command/>
+        <Arguments/>
+      </Flash>
+    </BuildConfig>
+  </BuildConfigs>
+</Project>
diff --git a/examples/i2c/i2c_ssd1306/readme.md b/examples/i2c/i2c_ssd1306/readme.md
new file mode 100644
index 00000000..0c7c5474
--- /dev/null
+++ b/examples/i2c/i2c_ssd1306/readme.md
@@ -0,0 +1,5 @@
+```bash
+
+$ make APP=i2c_ssd1306 BOARD=bl706_iot
+
+```
\ No newline at end of file