diff --git a/bsp/imxrt1052-evk/applications/sdio_test.c b/bsp/imxrt1052-evk/applications/sdio_test.c
deleted file mode 100644
index 0f1f7ddb74183a0ebb416286d040a94e0b8c2960..0000000000000000000000000000000000000000
--- a/bsp/imxrt1052-evk/applications/sdio_test.c
+++ /dev/null
@@ -1,147 +0,0 @@
-#include "rtthread.h"
-#include <stdint.h>
-#include "string.h"
-
-#define __is_print(ch) ((unsigned int)((ch) - ' ') < 127u - ' ')
-static void dump_hex(const rt_uint8_t *ptr, rt_size_t buflen)
-{
-    unsigned char *buf = (unsigned char*)ptr;
-    int i, j;
-
-    for (i=0; i<buflen; i+=16)
-    {
-        rt_kprintf("%08X: ", i);
-
-        for (j=0; j<16; j++)
-            if (i+j < buflen)
-                rt_kprintf("%02X ", buf[i+j]);
-            else
-                rt_kprintf("   ");
-        rt_kprintf(" ");
-
-        for (j=0; j<16; j++)
-            if (i+j < buflen)
-                rt_kprintf("%c", __is_print(buf[i+j]) ? buf[i+j] : '.');
-        rt_kprintf("\n");
-    }
-}
-
-
-static void read_sd__(uint32_t addr, int length, int count)
-{
-    rt_device_t device = RT_NULL;
-    rt_err_t result;
-    struct rt_device_blk_geometry geometry;
-    rt_uint8_t * read_buffer  = RT_NULL;
-
-    device = rt_device_find("sd0");
-    rt_device_init(device);
-    rt_device_open(device,RT_DEVICE_FLAG_RDWR);
-
-    rt_memset(&geometry, 0, sizeof(geometry));
-    result = rt_device_control(device,
-                               RT_DEVICE_CTRL_BLK_GETGEOME,
-                               &geometry);                  
-    rt_kprintf("device info:\r\n");
-    rt_kprintf("sector  size : %d byte\r\n", geometry.bytes_per_sector);
-    rt_kprintf("sector count : %d \r\n", geometry.sector_count);
-    rt_kprintf("block   size : %d byte\r\n", geometry.block_size);
-    
-    rt_kprintf("\r\n");
-    read_buffer = rt_malloc(geometry.bytes_per_sector*length);
-    if( read_buffer == RT_NULL )
-    {
-        rt_kprintf("no memory for read_buffer!\r\n");
-        goto __return;
-    }
-    
-    memset(read_buffer,0x00,geometry.bytes_per_sector*length);
-    // for(i = 0;i < count; i++)
-    {
-        result = rt_device_read(device,addr,read_buffer, length);
-        
-        dump_hex(read_buffer,geometry.bytes_per_sector * length);
-        if(result != length)
-        {
-            rt_kprintf("read device :%s ", device->parent.name);
-            rt_kprintf("the first sector failed.\r\n");
-            goto __return;
-        }
-        rt_kprintf("\n");
-    }
-     
-__return:
-    if( read_buffer != RT_NULL )
-    {
-        rt_free(read_buffer);
-    }  
-}
-
-static void write_sd__(uint32_t addr, int length, unsigned char data)
-{
-    int i;
-    rt_device_t device = RT_NULL;
-    rt_err_t result;
-    struct rt_device_blk_geometry geometry;
-    rt_uint8_t * write_buffer = RT_NULL;
-    rt_uint8_t * data_point = RT_NULL;;
-    
-    device = rt_device_find("sd0");
-    rt_device_init(device);
-    rt_device_open(device,RT_DEVICE_FLAG_RDWR);
-
-    rt_memset(&geometry, 0, sizeof(geometry));
-    result = rt_device_control(device,
-                               RT_DEVICE_CTRL_BLK_GETGEOME,
-                               &geometry);                  
-    rt_kprintf("device info:\r\n");
-    rt_kprintf("sector  size : %d byte\r\n", geometry.bytes_per_sector);
-    rt_kprintf("sector count : %d \r\n", geometry.sector_count);
-    rt_kprintf("block   size : %d byte\r\n", geometry.block_size);
-    rt_kprintf("\r\n");
-    write_buffer = rt_malloc(geometry.bytes_per_sector);
-    if( write_buffer == RT_NULL )
-    {
-        rt_kprintf("no memory for write_buffer!\r\n");
-        goto __return;
-    }
-    data_point = write_buffer;
-    
-    for(i=data; i<geometry.bytes_per_sector; i++)
-    {
-        *data_point++ = (rt_uint8_t)i;
-    }
-    
-    for(i = addr;i < (length + addr); i++)
-    {
-        rt_device_write(device, addr, write_buffer,1);
-    }
-    
-__return:
-    if( write_buffer != RT_NULL )
-    {
-        rt_free(write_buffer);
-    }
-}
-
-int sdio_read(uint32_t addr, int length, int count)
-{
-    read_sd__(addr, length, count);
-    
-    return 0;
-}
-
-int sdio_write(uint32_t addr, int length, unsigned char data)
-{
-    write_sd__(addr, length, data);
-    
-    return 0;
-}
-
-
-
-#ifdef RT_USING_FINSH
-#include <finsh.h>
-FINSH_FUNCTION_EXPORT_ALIAS(sdio_read, sdior, sdio read test);
-FINSH_FUNCTION_EXPORT_ALIAS(sdio_write, sdiow, sdio write test);
-#endif