diff --git a/APP_Framework/Applications/app_test/test_fs.c b/APP_Framework/Applications/app_test/test_fs.c
index 4711d0198..69e323666 100644
--- a/APP_Framework/Applications/app_test/test_fs.c
+++ b/APP_Framework/Applications/app_test/test_fs.c
@@ -5,27 +5,58 @@
 #define MAX_READ_LENGTH 1000
 
 // sd card here is loaded as "/"
-void TestSD(void)
+void TestFs(void)
 {
     //open the file in sdcard
     int fd = open(SD_FPATH,O_RDWR|O_CREAT);
+    if(fd<0){
+        printf("fs fd open error:%d\n",fd);
+        return;
+    }
+
     char filewords[MAX_READ_LENGTH];
     memset(filewords,0,MAX_READ_LENGTH);
+    const char *input_words = "these words are going to write in fs\n";
 
     //read and write then close file
-    read(fd,filewords,MAX_READ_LENGTH);
+    int err_flag = read(fd,filewords,MAX_READ_LENGTH);
+    if(err_flag<0){
+        printf("read failed,error:%d\n",err_flag);
+        return;
+    }
     printf("read data is \n%s\n",filewords);
-    const char *input_words = "these words are going to write in fs\n";
-    write(fd,input_words,strlen(input_words));
-    close(fd);
+    
+    err_flag = write(fd,input_words,strlen(input_words));
+    if(err_flag<0){
+        printf("write failed,error:%d\n",err_flag);
+        return;
+    }
+    err_flag = close(fd);
+    if(err_flag<0){
+        printf("close failed,error %d\n",err_flag);
+        return ;
+    }
 
     //re-open the file and re-read the file
     fd = open(SD_FPATH,O_RDWR);
-    read(fd,filewords,MAX_READ_LENGTH);
+     if(fd<0){
+        printf("fs fd open error:%d\n",fd);
+        return;
+    }   
+    err_flag = read(fd,filewords,MAX_READ_LENGTH);
+    if(err_flag<0){
+        printf("read failed,error:%d\n",err_flag);
+        return;
+    }    
+
     printf("read data is \n%s\n",filewords);
-    close(fd);
+    err_flag = close(fd);
+    if(err_flag<0){
+        printf("close failed,error:%d\n",err_flag);
+        return;
+    }        
 
     return;
 }
 
-PRIV_SHELL_CMD_FUNCTION(TestSD, a sdcard test sample, PRIV_SHELL_CMD_MAIN_ATTR);
\ No newline at end of file
+PRIV_SHELL_CMD_FUNCTION(TestFs, a sd or usb filesystem test sample, PRIV_SHELL_CMD_MAIN_ATTR);
\ No newline at end of file
diff --git a/APP_Framework/Applications/app_test/test_gpio.c b/APP_Framework/Applications/app_test/test_gpio.c
index 2841cff50..7d160ec95 100644
--- a/APP_Framework/Applications/app_test/test_gpio.c
+++ b/APP_Framework/Applications/app_test/test_gpio.c
@@ -2,9 +2,80 @@
 #include <string.h>
 #include <transform.h>
 
+#define BSP_LED_PIN 29
+#define BSP_KEY_PIN 31
+#define NULL_PARAMETER 0
 
 void  TestGpio(void)
 {
+    int pin_fd = PrivOpen(GPIO_DEV_DRIVER, O_RDWR);
+    if(pin_fd<0){
+        printf("open pin fd error:%d\n",pin_fd);
+        return;
+    }
+
+    //config led pin in board
+     struct PinParam parameter;
+     parameter.cmd = GPIO_CONFIG_MODE;
+     parameter.pin = BSP_LED_PIN;
+     parameter.mode = GPIO_CFG_OUTPUT;
+
+    struct PrivIoctlCfg ioctl_cfg;
+    ioctl_cfg.ioctl_driver_type = PIN_TYPE;
+    ioctl_cfg.args =  (void *)&parameter;
+
+    if (0 != PrivIoctl(pin_fd, OPE_CFG, &ioctl_cfg)) {
+        printf("ioctl pin fd error %d\n", pin_fd);
+        PrivClose(pin_fd);
+        return;
+    }
+
+    //config key pin in board
+     parameter.cmd = GPIO_CONFIG_MODE;
+     parameter.pin = BSP_KEY_PIN;
+     parameter.mode = GPIO_CFG_INPUT;
+
+    ioctl_cfg.ioctl_driver_type = PIN_TYPE;
+    ioctl_cfg.args =  (void *)&parameter;
+
+    if (0 != PrivIoctl(pin_fd, OPE_CFG, &ioctl_cfg)) {
+        printf("ioctl pin fd error %d\n", pin_fd);
+        PrivClose(pin_fd);
+        return;
+    } 
+
+    struct PinStat pin_led;
+    struct PinStat pin_key;
+
+    pin_led.pin = BSP_LED_PIN;
+    pin_key.pin = BSP_KEY_PIN;
     
+    //recycle read pin and write pin until key break
+    while(1){
+        if(0>PrivRead(pin_fd,&pin_key,NULL_PARAMETER)){
+            printf("read pin fd error %d\n", pin_fd);
+            PrivClose(pin_fd);
+            return;
+        }
+
+        //led on if key pressed,or led off
+        if(pin_key.val){
+            pin_led.val = GPIO_HIGH;
+            if(0>PrivWrite(pin_fd,&pin_led,NULL_PARAMETER)){
+                printf("write pin fd error %d\n", pin_fd);
+                PrivClose(pin_fd);
+                return;
+            }
+        }else{
+            pin_led.val = GPIO_LOW;
+            if(0>PrivWrite(pin_fd,&pin_led,NULL_PARAMETER)){
+                printf("write pin fd error %d\n", pin_fd);
+                PrivClose(pin_fd);
+                return;
+            }           
+        }
+
+    }
 }
 
+PRIV_SHELL_CMD_FUNCTION(TestGpio, a gpio test sample, PRIV_SHELL_CMD_MAIN_ATTR);
\ 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 7e4e214b5..a8950d63b 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
@@ -89,6 +89,9 @@ enum HS_GPIO_CONFIG
 #define BSP_SOFT_SPI_MIOS_PIN 25
 #define BSP_SOFT_SPI_MSOI_PIN 27
 #define BSP_SOFT_SPI_NCS_PIN 28
+
+#define BSP_LED_PIN 29
+#define BSP_KEY_PIN 31
 #endif
 
 extern int IoConfigInit(void);