diff --git a/APP_Framework/Applications/app_test/Kconfig b/APP_Framework/Applications/app_test/Kconfig
index bffda4b64..91550632a 100644
--- a/APP_Framework/Applications/app_test/Kconfig
+++ b/APP_Framework/Applications/app_test/Kconfig
@@ -26,6 +26,17 @@ menu "test app"
                     endif
                 endif
 
+            menuconfig USER_TEST_SD
+                bool "Config test sd"
+                default n
+                if USER_TEST_SD
+                    if ADD_XIZI_FETURES
+                        config SD_FPATH
+                            string "Set sd file path"
+                            default "/sdcard_testfile"
+                    endif
+                endif
+
             config USER_TEST_SEMC
                 bool "Config test semc sdram"
                 default n
@@ -33,5 +44,7 @@ menu "test app"
             config USER_TEST_LCD
                 bool "Config test lcd device"
                 default n
+
+                
         endif
 endmenu
diff --git a/APP_Framework/Applications/app_test/Makefile b/APP_Framework/Applications/app_test/Makefile
index be43d9839..2d68c4cc4 100644
--- a/APP_Framework/Applications/app_test/Makefile
+++ b/APP_Framework/Applications/app_test/Makefile
@@ -25,6 +25,10 @@ ifeq ($(CONFIG_ADD_XIZI_FETURES),y)
         SRC_FILES += test_dac.c
     endif
 
+    ifeq ($(CONFIG_USER_TEST_SD),y)
+        SRC_FILES += test_softspi_sd.c
+    endif
+
     ifeq ($(CONFIG_USER_TEST_SEMC),y)
         SRC_FILES += test_extsram.c
     endif
diff --git a/APP_Framework/Applications/app_test/test_adc.c b/APP_Framework/Applications/app_test/test_adc.c
index 1d6ad202a..6366555be 100644
--- a/APP_Framework/Applications/app_test/test_adc.c
+++ b/APP_Framework/Applications/app_test/test_adc.c
@@ -56,4 +56,4 @@ void TestAdc(void)
 
     return;
 }
-PRIV_SHELL_CMD_FUNCTION(TestAdc, a adc test sample, PRIV_SHELL_CMD_MAIN_ATTR);
+PRIV_SHELL_CMD_FUNCTION(TestAdc, a adc test sample, PRIV_SHELL_CMD_MAIN_ATTR);
\ No newline at end of file
diff --git a/APP_Framework/Applications/app_test/test_softspi_sd.c b/APP_Framework/Applications/app_test/test_softspi_sd.c
new file mode 100644
index 000000000..c49e324fa
--- /dev/null
+++ b/APP_Framework/Applications/app_test/test_softspi_sd.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <string.h>
+#include <transform.h>
+
+#define MAX_READ_LENGTH 1000
+
+// sd card here is loaded as "/"
+void TestSD(void)
+{
+    //open the file in sdcard
+    int fd = open(SD_FPATH,O_RDWR|O_CREAT);
+    char filewords[MAX_READ_LENGTH];
+    memset(filewords,0,MAX_READ_LENGTH);
+
+    //read and write then close file
+    read(fd,filewords,MAX_READ_LENGTH);
+    printf("read data is \n%s\n",filewords);
+    const char *input_words = "these words are going to write in sdcard\n";
+    write(fd,input_words,strlen(input_words));
+    close(fd);
+
+    //re-open the file and re-read the file
+    fd = open(SD_FPATH,O_RDWR);
+    read(fd,filewords,MAX_READ_LENGTH);
+    printf("read data is \n%s\n",filewords);
+    close(fd);
+
+    return;
+}
+
+PRIV_SHELL_CMD_FUNCTION(TestSD, a sdcard test sample, PRIV_SHELL_CMD_MAIN_ATTR);
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/board.c b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/board.c
index 6dd32085d..9074c6e26 100644
--- a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/board.c
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/board.c
@@ -44,10 +44,11 @@ Modification:
 #include "fpioa.h"
 #include "dmac.h"
 #include "connect_gpio.h"
+#include "connect_soft_spi.h"
 
-#if defined(FS_VFS)
-#include <iot-vfs.h>
-#endif
+// #if defined(FS_VFS)
+// #include <iot-vfs.h>
+// #endif
 
 #define CPU0    (0)
 #define CPU1    (1)
@@ -60,8 +61,8 @@ extern int HwTouchInit(void);
 extern int HwCh376Init(void);
 extern int HwLcdInit(void);
 extern int HwSpiInit(void);
+extern int HwSoftSPIInit(void);
 
-#ifdef FS_CH376
 #include <iot-vfs.h>
 #ifdef MOUNT_USB
 /**
@@ -78,23 +79,34 @@ int  MountUSB(void)
     return 0;
 }
 #endif
-#ifdef MOUNT_SDCARD
+
+#if defined(FS_VFS) && defined (MOUNT_SDCARD)
+#include <iot-vfs.h>
+#include <sd_spi.h>
+extern SpiSdDeviceType SpiSdInit(struct Bus *bus, const char *dev_name, const char *drv_name, const char *sd_name);
+
 /**
  * @description: Mount SD card
  * @return 0
  */
-
-int  MountSDCard(void)
+int MountSDCard(void)
 {
-    if (MountFilesystem(SDIO_BUS_NAME,SDIO_DEVICE_NAME ,SDIO_DRIVER_NAME , FSTYPE_CH376, "/") == 0)
-        KPrintf("sd card mount to '/'\n");
-    else
-        KPrintf("sd card mount to '/' failed!\n");
-    
-    return 0;
+    struct Bus *spi_bus;
+    spi_bus = BusFind(SOFT_SPI_BUS_NAME);
+    if (NONE == SpiSdInit(spi_bus, SOFT_SPI_DEVICE_NAME, SOFT_SPI_DRV_NAME, SPI_SD_NAME)) {
+        KPrintf("MountSDCard SpiSdInit error!\n");
+        return -1;
+    }
+    if (EOK != MountFilesystem(SOFT_SPI_BUS_NAME, SPI_SD_NAME, SOFT_SPI_DRV_NAME, FSTYPE_FATFS, "/")) {
+        return -1; 
+    }
+
+    KPrintf("SPI SD card fatfs mounted\n");
+   return 0;
 }
 #endif
-#endif
+
+
 
 void InitBss(void)
 {
@@ -183,10 +195,14 @@ struct InitSequenceDesc _board_init[] =
 #endif
 #ifdef BSP_USING_TOUCH
     {"touch", HwTouchInit },
+#endif
+#ifdef BSP_USING_SOFT_SPI
+    {"soft_spi", HwSoftSPIInit },
 #endif
     { " NONE ",NONE },
 };
 
+
 void InitBoardHardware(void)
 {
 	int i = 0;
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Kconfig b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Kconfig
index 4b4572352..eed2fa64b 100755
--- a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Kconfig
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Kconfig
@@ -16,6 +16,16 @@ menuconfig BSP_USING_SPI
         source "$BSP_DIR/third_party_driver/spi/Kconfig"
     endif
 
+menuconfig BSP_USING_SOFT_SPI
+    bool "Using SOFT_SPI device"
+    default n
+    select BSP_USING_SPI
+    select MOUNT_SDCARD
+    select FS_VFS
+    if BSP_USING_SOFT_SPI
+        source "$BSP_DIR/third_party_driver/soft_spi/Kconfig"
+    endif
+
 menuconfig BSP_USING_LCD
     bool "Using LCD device"
     default n
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Makefile b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Makefile
index dd458fd0c..7494b84fe 100644
--- a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Makefile
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/Makefile
@@ -40,4 +40,8 @@ ifeq ($(CONFIG_BSP_USING_LCD),y)
   SRC_DIR += lcd
 endif
 
+ifeq ($(CONFIG_BSP_USING_SOFT_SPI),y)
+  SRC_DIR += soft_spi
+endif
+
 include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/gpio/drv_io_config.c b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/gpio/drv_io_config.c
index 2211e5832..c92ebcce1 100644
--- a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/gpio/drv_io_config.c
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/gpio/drv_io_config.c
@@ -95,7 +95,13 @@ static struct io_config
     IOCONFIG(BSP_CH438_D4_PIN,  HS_GPIO(FPIOA_CH438_D4)),      
     IOCONFIG(BSP_CH438_D5_PIN,  HS_GPIO(FPIOA_CH438_D5)),      
     IOCONFIG(BSP_CH438_D6_PIN,  HS_GPIO(FPIOA_CH438_D6)),      
-    IOCONFIG(BSP_CH438_D7_PIN,  HS_GPIO(FPIOA_CH438_D7))
+    IOCONFIG(BSP_CH438_D7_PIN,  HS_GPIO(FPIOA_CH438_D7)),
+#endif
+#ifdef BSP_USING_SOFT_SPI
+    IOCONFIG(BSP_SOFT_SPI_SCK_PIN,  HS_GPIO(FPIOA_SOFT_SPI_SCK)),      
+    IOCONFIG(BSP_SOFT_SPI_MIOS_PIN,  HS_GPIO(FPIOA_SOFT_SPI_MIOS)),      
+    IOCONFIG(BSP_SOFT_SPI_MSOI_PIN,  HS_GPIO(FPIOA_SOFT_SPI_MSOI)),      
+    IOCONFIG(BSP_SOFT_SPI_NCS_PIN,  HS_GPIO(FPIOA_SOFT_SPI_NCS)),
 #endif
 };
 
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/connect_soft_spi.h b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/connect_soft_spi.h
new file mode 100644
index 000000000..687c1383d
--- /dev/null
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/connect_soft_spi.h
@@ -0,0 +1,14 @@
+#ifndef CONNECT_TF_H
+#define CONNECT_TF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+int HwSoftSPIInit(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
\ No newline at end of file
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/drv_io_config.h b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/drv_io_config.h
index c61e62412..7e4e214b5 100644
--- a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/drv_io_config.h
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/include/drv_io_config.h
@@ -78,6 +78,19 @@ enum HS_GPIO_CONFIG
 #define BSP_CH438_INT_PIN   35
 #endif
 
+#define BSP_USING_SOFT_SPI
+#ifdef BSP_USING_SOFT_SPI
+#define FPIOA_SOFT_SPI_SCK  26
+#define FPIOA_SOFT_SPI_MIOS   25
+#define FPIOA_SOFT_SPI_MSOI   27
+#define FPIOA_SOFT_SPI_NCS    28
+
+#define BSP_SOFT_SPI_SCK_PIN 26
+#define BSP_SOFT_SPI_MIOS_PIN 25
+#define BSP_SOFT_SPI_MSOI_PIN 27
+#define BSP_SOFT_SPI_NCS_PIN 28
+#endif
+
 extern int IoConfigInit(void);
 
 #endif
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Kconfig b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Kconfig
new file mode 100644
index 000000000..d52a83176
--- /dev/null
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Kconfig
@@ -0,0 +1,47 @@
+if BSP_USING_SOFT_SPI
+        config SOFT_SPI_BUS_NAME
+            string "soft spi bus 1 name"
+            default "soft_spi1_bus1"
+        
+        config SOFT_SPI_DEVICE_NAME
+            string "soft spi dev 1 name"
+            default "soft_spi1_dev1" 
+
+        config SOFT_SPI_DRV_NAME
+            string "soft spi drv 1 name"
+            default "soft_spi1_drv1"
+
+        config SOFT_SPI_SCK
+            int "soft spi sck pin"
+            default 26
+
+        config  SOFT_SPI_MOSI
+            int "soft spi mosi pin"
+            default 27
+
+        config  SOFT_SPI_MISO
+            int "soft spi miso pin"
+            default 25
+
+        config SOFT_SPI_CS0_PIN
+            int "soft spi cs pin"
+            default 28
+
+        config SOFT_SPI_DEVICE_SLAVE_ID
+            int "soft spi slave id"
+            default 0
+        
+        config SOFT_SPI_CHIP_SELECT
+            int "soft spi chip selected"
+            default 0
+
+        config SOFT_SPI_CLK_DELAY
+            int "clk in microsecond"
+            default 0
+
+        config SOFT_SPI_READ_DELAY
+            int "read after millisecond"
+            default 1
+        
+endif
+
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Makefile b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Makefile
new file mode 100644
index 000000000..8ccf2895c
--- /dev/null
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/Makefile
@@ -0,0 +1,3 @@
+SRC_FILES := connect_soft_spi.c
+
+include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/connect_soft_spi.c b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/connect_soft_spi.c
new file mode 100644
index 000000000..d9af16d84
--- /dev/null
+++ b/Ubiquitous/XiZi_IIoT/board/edu-riscv64/third_party_driver/soft_spi/connect_soft_spi.c
@@ -0,0 +1,292 @@
+#include <xizi.h>
+#include <device.h>
+#include <fpioa.h>
+#include <gpiohs.h>
+#include "drv_io_config.h"
+#include <plic.h>
+#include <utils.h>
+#include <connect_soft_spi.h>
+#include <sleep.h>
+
+#include <sd_spi.h>
+#include <dev_spi.h>
+#include <bus_spi.h>
+
+
+static x_err_t softSPIinit(struct SpiDriver *spi_drv, struct BusConfigureInfo *cfg)
+{
+    NULL_PARAM_CHECK(spi_drv );
+    NULL_PARAM_CHECK(cfg );
+
+	//mode  CPOL = 0  CPHA = 0 
+    gpiohs_set_drive_mode(SOFT_SPI_CS0_PIN,GPIO_DM_OUTPUT);
+    gpiohs_set_pin(SOFT_SPI_CS0_PIN, GPIO_PV_HIGH);//set the cs gpio high
+    gpiohs_set_drive_mode(SOFT_SPI_SCK, GPIO_DM_OUTPUT);
+    gpiohs_set_drive_mode(SOFT_SPI_MOSI, GPIO_DM_OUTPUT);
+    gpiohs_set_drive_mode(SOFT_SPI_MISO, GPIO_DM_INPUT);
+    gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_LOW);
+    KPrintf("%s init done\n",SOFT_SPI_BUS_NAME);
+
+    
+    return EOK;
+}
+
+static uint32 softSpiDrvConfigure(void *drv, struct BusConfigureInfo *configure_info)
+{
+    NULL_PARAM_CHECK(drv);
+    NULL_PARAM_CHECK(configure_info);
+
+    x_err_t ret = EOK;
+    struct SpiDriver *spi_drv = (struct SpiDriver *)drv;
+    struct SpiMasterParam *spi_param;
+
+    switch (configure_info->configure_cmd)
+    {
+    case OPE_INT:
+        softSPIinit(spi_drv,configure_info);
+        break;
+
+    case OPE_CFG:
+        break;    
+    default:
+
+        break;
+    }
+    
+
+    return ret;        
+}
+
+static void soft_spi_writebyte(struct SpiHardwareDevice *spi_dev, uint8_t data)
+{
+    int8_t i = 0;
+    uint8_t temp = 0;
+    for(i=0; i<8; i++) 
+    {
+        temp = ((data&0x80)==0x80)? 1:0;
+        data = data<<1;
+        gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_LOW);
+        usleep(SOFT_SPI_CLK_DELAY); 
+        if(0 == temp )
+        {
+            gpiohs_set_pin(SOFT_SPI_MOSI,GPIO_PV_LOW);
+        }
+        else
+        {
+            gpiohs_set_pin(SOFT_SPI_MOSI,GPIO_PV_HIGH);
+        }
+        gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_HIGH);
+        usleep(SOFT_SPI_CLK_DELAY); 
+    }
+    gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_LOW);
+}
+
+
+/* 读一个字节 */
+static uint8_t soft_spi_readbyte(struct SpiHardwareDevice *spi_dev)
+{
+    uint8_t i = 0;
+    uint8_t read_data = 0xFF;
+    for(i=0; i<8; i++) 
+    {   
+        read_data = read_data << 1;
+        gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_LOW);
+        usleep(SOFT_SPI_CLK_DELAY);
+        gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_HIGH);
+        usleep(SOFT_SPI_CLK_DELAY);
+        if(1==gpiohs_get_pin(SOFT_SPI_MISO)) 
+        {
+            read_data = read_data | 0x01; 
+        } 
+    }
+    return read_data;
+}
+
+
+/* 读写一个字节 */
+//this funcition is unverify until now!
+static uint8_t soft_spi_readwritebyte(struct SpiHardwareDevice *spi_dev, uint8_t data)
+{
+    uint8_t i = 0;
+    uint8_t temp = 0;
+    uint8_t read_data = 0xFF;
+    for(i=0;i<8;i++) 
+    {
+        temp = ((data&0x80)==0x80)? 1:0;
+        data = data<<1;
+        read_data = read_data<<1;
+        if(temp == 0)
+        {
+            gpiohs_set_pin(SOFT_SPI_MOSI,GPIO_PV_LOW);
+        }
+        else
+        {
+            gpiohs_set_pin(SOFT_SPI_MOSI,GPIO_PV_HIGH);
+        }
+        usleep(SOFT_SPI_CLK_DELAY);
+        gpiohs_set_pin(SOFT_SPI_SCK,GPIO_PV_HIGH);
+        usleep(SOFT_SPI_CLK_DELAY);
+        if(gpiohs_get_pin(SOFT_SPI_MISO)==1) 
+        {
+            read_data = read_data + 1; 
+        } 
+        }
+        return read_data;
+}
+
+
+static uint32 softSpiWriteData(struct SpiHardwareDevice *spi_dev, struct SpiDataStandard *spi_datacfg)
+{
+   SpiDeviceParam *dev_param = (SpiDeviceParam *)(spi_dev->haldev.private_data);
+
+    uint8 cs_gpio_pin = dev_param->spi_slave_param->spi_cs_gpio_pin;
+    const uint8_t *data_buff = spi_datacfg->tx_buff;
+    int data_length =  spi_datacfg->length;
+     if(NONE == spi_datacfg->tx_buff){
+        data_length = 0;
+     }
+     
+    if (spi_datacfg->spi_chip_select) {
+        gpiohs_set_pin(cs_gpio_pin, GPIO_PV_LOW);
+    } 
+
+    for(size_t i=0;i<data_length;i++){
+        soft_spi_writebyte(spi_dev,data_buff[i] );
+    }
+
+    if (spi_datacfg->spi_cs_release) {
+        gpiohs_set_pin(cs_gpio_pin, GPIO_PV_HIGH);
+    }
+    spi_datacfg = spi_datacfg->next;
+
+    return EOK;
+}
+
+static uint32 softSpiReadData(struct SpiHardwareDevice *spi_dev, struct SpiDataStandard *spi_datacfg)
+{
+   SpiDeviceParam *dev_param = (SpiDeviceParam *)(spi_dev->haldev.private_data);
+    uint8 cs_gpio_pin = dev_param->spi_slave_param->spi_cs_gpio_pin;
+    uint8_t *recv_buff = spi_datacfg->rx_buff;
+    int recv_length = spi_datacfg->length;
+
+     if(NONE == spi_datacfg->rx_buff){
+        recv_length = 0;
+     }
+
+    if (spi_datacfg->spi_chip_select) {
+        gpiohs_set_pin(cs_gpio_pin, GPIO_PV_LOW);
+    }    
+
+    for(size_t i=0;i<recv_length;i++){
+        recv_buff[i] = soft_spi_readbyte(spi_dev);
+    }
+
+    if (spi_datacfg->spi_cs_release) {
+        gpiohs_set_pin(cs_gpio_pin, GPIO_PV_HIGH);
+    }
+
+    spi_datacfg = spi_datacfg->next;
+
+    return  spi_datacfg->length;
+}
+
+
+const struct SpiDevDone soft_spi_dev_done={
+    .dev_close = NONE,
+    .dev_open = NONE,
+    .dev_read   = softSpiReadData,
+   .dev_write  = softSpiWriteData
+};
+
+
+static int BoardSoftSpiBusInit(struct SpiBus *spi_bus, struct SpiDriver *spi_driver)
+{
+    x_err_t ret = EOK;
+
+    /*Init the spi bus */
+    ret = SpiBusInit(spi_bus, SOFT_SPI_BUS_NAME);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_init SpiBusInit error %d\n", ret);
+        return ERROR;
+    }
+
+    /*Init the spi driver*/
+    ret = SpiDriverInit(spi_driver, SOFT_SPI_DRV_NAME);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_init SpiDriverInit error %d\n", ret);
+        return ERROR;
+    }
+
+    /*Attach the spi driver to the spi bus*/
+    ret = SpiDriverAttachToBus(SOFT_SPI_DRV_NAME, SOFT_SPI_BUS_NAME);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_init SpiDriverAttachToBus error %d\n", ret);
+        return ERROR;
+    } 
+
+    return ret;
+}
+
+static int BoardSoftSpiDevBend(void)
+{
+    x_err_t ret = EOK;
+
+    static struct SpiHardwareDevice spi_device0;
+    memset(&spi_device0, 0, sizeof(struct SpiHardwareDevice));
+
+    static struct SpiSlaveParam spi_slaveparam0;
+    memset(&spi_slaveparam0, 0, sizeof(struct SpiSlaveParam));
+
+    spi_slaveparam0.spi_slave_id = SOFT_SPI_DEVICE_SLAVE_ID;
+    spi_slaveparam0.spi_cs_gpio_pin = SOFT_SPI_CS0_PIN;
+    spi_slaveparam0.spi_cs_select_id = SOFT_SPI_CHIP_SELECT;
+
+    spi_device0.spi_param.spi_dma_param = NONE;
+    spi_device0.spi_param.spi_slave_param = &spi_slaveparam0;
+
+    spi_device0.spi_dev_done = &(soft_spi_dev_done);
+
+    ret = SpiDeviceRegister(&spi_device0, (void *)(&spi_device0.spi_param), SOFT_SPI_DEVICE_NAME);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_init SpiDeviceInit device %s error %d\n", SOFT_SPI_DEVICE_NAME, ret);
+        return ERROR;
+    }  
+
+    ret = SpiDeviceAttachToBus(SOFT_SPI_DEVICE_NAME, SOFT_SPI_BUS_NAME);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_init SpiDeviceAttachToBus device %s error %d\n", SOFT_SPI_DEVICE_NAME, ret);
+        return ERROR;
+    }
+
+     return  ret;  
+}
+
+int HwSoftSPIInit(void){
+    x_err_t ret = EOK;
+
+    static struct SpiBus spi_bus;
+    memset(&spi_bus, 0, sizeof(struct SpiBus));
+
+    static struct SpiDriver spi_driver;
+    memset(&spi_driver, 0, sizeof(struct SpiDriver));
+
+
+    spi_driver.configure = &(softSpiDrvConfigure);
+
+
+    ret = BoardSoftSpiBusInit(&spi_bus, &spi_driver);
+    if (EOK != ret) {
+        KPrintf("Board_Spi_Init error ret %u\n", ret);
+        return ERROR;
+    }
+
+
+
+    ret = BoardSoftSpiDevBend();
+    if (EOK != ret) {
+        KPrintf("Board_Spi_Init error ret %u\n", ret);
+        return ERROR;
+    }    
+
+    return ret;
+}
diff --git a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Kconfig b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Kconfig
index 4a9ae18ee..0de9621a0 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Kconfig
+++ b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Kconfig
@@ -62,4 +62,7 @@ menuconfig KERNEL_TEST
         config KERNEL_TEST_SPI_FLASH
             bool "Config test spi flash"
             default n
+        config KERNEL_TEST_SOFT_SPI_SD
+            bool "Config test soft spi sd"
+            default n
     endif
diff --git a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Makefile b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Makefile
index 1c4f0656a..ed3599ccb 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Makefile
+++ b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/Makefile
@@ -92,4 +92,8 @@ ifeq ($(CONFIG_KERNEL_TEST_SPI_FLASH),y)
 	SRC_FILES += test_spi_flash.c 
 endif
 
+ifeq ($(KERNEL_TEST_SOFT_SPI_SD),y)
+	SRC_FILES += test_softspi_sd.c 
+endif
+
 include $(KERNEL_ROOT)/compiler.mk
diff --git a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_main.c b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_main.c
index 18d6f85f0..33f15d9a9 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_main.c
+++ b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_main.c
@@ -118,6 +118,8 @@ int TestMain(int argc, char*argv[])
 #ifdef KERNEL_TEST_REALTIME
 		if (argc > 2)
 			TestRealtime(argc-2, &argv[2]);
+#endif
+#ifdef KERNEL_TEST_SOFT_SPI_SD
 #endif
 		default:
 			break;
diff --git a/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_softspi_sd.c b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_softspi_sd.c
new file mode 100644
index 000000000..b07c8a672
--- /dev/null
+++ b/Ubiquitous/XiZi_IIoT/kernel/kernel_test/test_softspi_sd.c
@@ -0,0 +1,105 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2016-09-28     armink       first version.
+ */
+
+/**
+* @file test_spi_flash.c
+* @brief support to test spi flash function
+* @version 1.0 
+* @author AIIT XUOS Lab
+* @date 2021-05-17
+*/
+
+/*************************************************
+File name: test_spi_flash.c
+Description: support spi flash function test
+Others: add spi flash test cmd from SFUD/blob/master/demo/stm32f2xx_rtt/RT-Thread-2.1.0/components/drivers/spi/spi_flash_sfud.c
+                https://github.com/armink/SFUD/
+History: 
+1. Date: 2021-05-17
+Author: AIIT XUOS Lab
+Modification: 
+1. support spi flash open, read and write function
+*************************************************/
+
+#include <xizi.h>
+#include <device.h>
+#include <bus.h>
+
+// void SDpen(void)
+// {
+//     x_err_t ret = EOK;
+    
+//     ret=HwTFInit();
+//     if (ret < 0) {
+//         KPrintf("open spi flash fd error %d\n", ret);
+//     }
+
+//     KPrintf("Spi Flash init succeed\n");
+
+//     return;
+// }
+
+// SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
+//                                                 SDpen, SDpen,  open spi flash device);
+
+// void SDRead(int argc, char *argv[])
+// {
+//      x_err_t ret = EOK;
+
+// }
+// SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
+//                                                 SDRead, SDRead,  read data from spi flash device);
+
+// void SDWrite(int argc, char *argv[])
+// {
+//     x_err_t ret = EOK;
+//     x_size_t i, j = 0;
+//     uint32 addr;
+//     uint32 size;
+//     uint8 data[16];
+
+//     struct BusBlockWriteParam write_param;
+//     memset(&write_param, 0, sizeof(struct BusBlockWriteParam));
+
+//     memset(data, 0, 16);
+
+//     if (argc < 3) {
+//         KPrintf("FlashWrite cmd format: FlashWrite addr data.\n");
+//         return;
+//     } else {
+//         addr = strtol(argv[1], NULL, 0);
+//         size = argc - 2;
+
+//         write_param.buffer = data;
+//         write_param.pos = addr;
+//         write_param.size = size;
+
+//         if (data) {
+//             for (i = 0; i < size; i++) {
+//                 data[i] = strtol(argv[2 + i], NULL, 0);
+//             }
+
+//             ret = write(spi_flash_fd, &write_param, size);
+//             if (EOK == ret) {
+//                 KPrintf("Write the %s flash data success. Start from 0x%08X, size is %ld.\n",
+//                         SPI_FLASH_PATH, addr, size);
+//                 KPrintf("Write data: ");
+//                 for (i = 0; i < size; i++) {
+//                     KPrintf("%d ", data[i]);
+//                 }
+//                 KPrintf(".\n");
+//             }
+//         } else {
+//             KPrintf("SpiFlashWrite alloc write buffer failed!\n");
+//         }
+//     }
+// }
+// SHELL_EXPORT_CMD(SHELL_CMD_PERMISSION(0)|SHELL_CMD_TYPE(SHELL_TYPE_CMD_MAIN),
+//                                                 SDWrite, SDWrite,  write data to spi flash device);
diff --git a/Ubiquitous/XiZi_IIoT/kernel/thread/init.c b/Ubiquitous/XiZi_IIoT/kernel/thread/init.c
index 7e7bf03d8..332057b23 100644
--- a/Ubiquitous/XiZi_IIoT/kernel/thread/init.c
+++ b/Ubiquitous/XiZi_IIoT/kernel/thread/init.c
@@ -164,7 +164,6 @@ void EnvInitKTask(void *parameter)
 	_InitSubCmpts(components_init);
 	_InitSubCmpts(env_init);
 	ENABLE_INTERRUPT(lock);
-
 	_InitSubCmpts(communication_init);
 	 
 #ifdef ARCH_SMP
diff --git a/Ubiquitous/XiZi_IIoT/resources/include/sd_spi.h b/Ubiquitous/XiZi_IIoT/resources/include/sd_spi.h
index 387d26ae5..db9df22a2 100644
--- a/Ubiquitous/XiZi_IIoT/resources/include/sd_spi.h
+++ b/Ubiquitous/XiZi_IIoT/resources/include/sd_spi.h
@@ -28,11 +28,11 @@
 extern "C" {
 #endif
 
-#define SPI_SD_FREQUENCY                 400000
+#define SPI_SD_FREQUENCY               400000
 #define SPI_SD_TIMEOUT_NUM                  100
 #define SD_CMD_RESPONE_LENGTH            5
 #define SD_CMD_CSD_LENGTH                     16
-#define SD_BLOCK_LENGTH                         512
+#define SD_BLOCK_LENGTH                       512
 
 #define SD_TIMEOUT(cnt, time)                      \
 do \
diff --git a/Ubiquitous/XiZi_IIoT/resources/spi/sd_card_spi/sd_spi.c b/Ubiquitous/XiZi_IIoT/resources/spi/sd_card_spi/sd_spi.c
index fa905bc2b..6eba43464 100644
--- a/Ubiquitous/XiZi_IIoT/resources/spi/sd_card_spi/sd_spi.c
+++ b/Ubiquitous/XiZi_IIoT/resources/spi/sd_card_spi/sd_spi.c
@@ -96,9 +96,8 @@ static uint32 SdSendCmdByte(SpiSdDeviceType spi_sd_dev, struct SdCmdParam *sd_cm
         if ((SD_CMD_17  == sd_cmd_param->sd_cmd_type) || (SD_CMD_18  == sd_cmd_param->sd_cmd_type)) {
             MdelayKTask(100);
         }
-
         SD_TIMEOUT(start_time, 2 * SPI_SD_TIMEOUT_NUM);
-    }while((0 != (read[0] & 0x80)));
+    }while(0 != (read[0] & 0x80));
 
     switch (sd_cmd_param->sd_respone_type)
     {
@@ -672,7 +671,7 @@ static uint32 SdHwReadCSD(SpiSdDeviceType spi_sd_dev)
     g_sd_cmd_param.sd_cmd_type = SD_CMD_9;
     g_sd_cmd_param.sd_cmd_args = 0x00;
     g_sd_cmd_param.sd_cmd_crc = 0x00;
-    g_sd_cmd_param.sd_respone_type = SD_RESPONE_2;
+    g_sd_cmd_param.sd_respone_type = SD_RESPONE_1;
 
     /*pull down the cs pin*/
     SpiDevConfigureCs(&spi_sd_dev->spi_dev->haldev, 1, 0);
@@ -691,7 +690,7 @@ static uint32 SdHwReadCSD(SpiSdDeviceType spi_sd_dev)
     if (0xFE != g_sd_cmd_param.sd_respone_data[1]) {
         /*Step2 : SPI write data 0xFF until read 0xFE*/
         uint8 data = 0xFF;
-        uint8 read_spi; 
+        uint8 read_spi=0x00; 
         uint32 start_time;
 
         write_param.buffer = (void *)&data;
@@ -705,7 +704,6 @@ static uint32 SdHwReadCSD(SpiSdDeviceType spi_sd_dev)
         {
             BusDevWriteData(&spi_sd_dev->spi_dev->haldev, &write_param);
             BusDevReadData(&spi_sd_dev->spi_dev->haldev, &read_param);
-
             SD_TIMEOUT(start_time, 10 * SPI_SD_TIMEOUT_NUM);
         }while(0xFE != read_spi);
     }
@@ -768,7 +766,7 @@ static uint32 SdReadSingleBlock(SpiSdDeviceType spi_sd_dev, uint32 id, uint8 *re
         return ERROR;
     }
 
-    /*Step2 : SPI write data 0xFF until read 0xFE*/
+    /*Step2 : SPI read until 0xFE*/
     uint8 data = 0xFF;
     uint8 read[2];
     uint32 start_time;
@@ -782,7 +780,6 @@ static uint32 SdReadSingleBlock(SpiSdDeviceType spi_sd_dev, uint32 id, uint8 *re
 
     do
     {
-        BusDevWriteData(&spi_sd_dev->spi_dev->haldev, &write_param);
         BusDevReadData(&spi_sd_dev->spi_dev->haldev, &read_param);
 
         SD_TIMEOUT(start_time, 100 * SPI_SD_TIMEOUT_NUM);
@@ -1077,6 +1074,7 @@ static uint32 SdWriteMultiBlock(SpiSdDeviceType spi_sd_dev, uint32 id, const voi
     }
 
     /*Step8 : SPI write 0xFD, multi block write data done*/
+    data = 0xFD;
     write_param.buffer = (void *)&data;
     write_param.size = 1;
     BusDevWriteData(&spi_sd_dev->spi_dev->haldev, &write_param);