diff --git a/bsp/stm32_radio/application.c b/bsp/stm32_radio/application.c
index 19260a3622b44ebadbeb5a7949a6b2d0bb55de53..5e499fd17d29e1a3f04154e0802041d48ea20e04 100644
--- a/bsp/stm32_radio/application.c
+++ b/bsp/stm32_radio/application.c
@@ -75,6 +75,12 @@ void rt_init_thread_entry(void *parameter)
             rt_kprintf("File System initialized!\n");
         else
             rt_kprintf("File System init failed!\n");
+
+		/* mount spi flash fat as resource directory */
+		if (dfs_mount("spi0", "/flash", "elm", 0, 0) == 0)
+			rt_kprintf("SPI File System initialized!\n");
+		else
+			rt_kprintf("SPI File System init failed!\n");
 #endif
     }
 #endif
diff --git a/bsp/stm32_radio/project.Opt b/bsp/stm32_radio/project.Opt
index 73bdc1f42db334e52981fa6a7cfd30a0630a070e..7c738d8a404c4d2131952015bec9324a9f9769d1 100644
--- a/bsp/stm32_radio/project.Opt
+++ b/bsp/stm32_radio/project.Opt
@@ -19,223 +19,219 @@ GRPOPT 5,(USB-FS-Device_Driver),0,0,0
 GRPOPT 6,(CMSIS),0,0,0
 GRPOPT 7,(finsh),0,0,0
 GRPOPT 8,(Filesystem),0,0,0
-GRPOPT 9,(LwIP),1,0,0
+GRPOPT 9,(LwIP),0,0,0
 GRPOPT 10,(mp3),0,0,0
 GRPOPT 11,(RTGUI),0,0,0
 GRPOPT 12,(Mass_Storage),0,0,0
 
-OPTFFF 1,1,5,0,0,114,114,0,<.\rtconfig.h><rtconfig.h> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,0,0,0,0,0,0,0,0,133,2,0,0,218,0,0,0 }
+OPTFFF 1,1,5,0,0,0,0,0,<.\rtconfig.h><rtconfig.h> 
 OPTFFF 1,2,5,0,0,0,0,0,<.\board.h><board.h> 
 OPTFFF 1,3,5,0,0,0,0,0,<.\stm32f10x_conf.h><stm32f10x_conf.h> 
 OPTFFF 1,4,1,0,0,0,0,0,<.\application.c><application.c> 
 OPTFFF 1,5,1,0,0,0,0,0,<.\board.c><board.c> 
-OPTFFF 1,6,1,452984834,0,40,50,0,<.\startup.c><startup.c> { 44,0,0,0,2,0,0,0,3,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,0,0,0,0,0,0,0,0,132,2,0,0,232,0,0,0 }
+OPTFFF 1,6,1,0,0,0,0,0,<.\startup.c><startup.c> 
 OPTFFF 1,7,1,0,0,0,0,0,<.\stm32f10x_it.c><stm32f10x_it.c> 
 OPTFFF 1,8,1,436207616,0,0,0,0,<.\usart.c><usart.c> 
 OPTFFF 1,9,1,0,0,0,0,0,<.\sdcard.c><sdcard.c> 
 OPTFFF 1,10,1,0,0,0,0,0,<.\rtc.c><rtc.c> 
-OPTFFF 1,11,1,0,0,0,0,0,<.\dm9000.c><dm9000.c> 
+OPTFFF 1,11,1,570425344,0,0,0,0,<.\dm9000.c><dm9000.c> 
 OPTFFF 1,12,1,889192448,0,0,0,0,<.\fsmc_nand.c><fsmc_nand.c> 
 OPTFFF 1,13,1,0,0,0,0,0,<.\fsmc_sram.c><fsmc_sram.c> 
 OPTFFF 1,14,1,0,0,0,0,0,<.\fmt0371\fmt0371.c><fmt0371.c> 
-OPTFFF 1,15,1,0,0,0,0,0,<.\http.c><http.c> 
-OPTFFF 1,16,1,0,0,0,0,0,<.\lcd.c><lcd.c> 
-OPTFFF 1,17,1,251658240,0,155,165,0,<.\mp3.c><mp3.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,44,0,0,0,58,0,0,0,177,2,0,0,20,1,0,0 }
+OPTFFF 1,15,1,167772160,0,0,0,0,<.\http.c><http.c> 
+OPTFFF 1,16,1,503316480,0,0,0,0,<.\lcd.c><lcd.c> 
+OPTFFF 1,17,1,0,0,0,0,0,<.\mp3.c><mp3.c> 
 OPTFFF 1,18,1,369098752,0,0,0,0,<.\wav.c><wav.c> 
-OPTFFF 1,19,1,285212672,0,78,78,0,<.\netbuffer.c><netbuffer.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,66,0,0,0,87,0,0,0,198,2,0,0,63,1,0,0 }
+OPTFFF 1,19,1,251658240,0,0,0,0,<.\netbuffer.c><netbuffer.c> 
 OPTFFF 1,20,1,0,0,0,0,0,<.\key.c><key.c> 
 OPTFFF 1,21,1,0,0,0,0,0,<.\info.c><info.c> 
-OPTFFF 1,22,1,0,0,0,0,0,<.\filelist.c><filelist.c> 
-OPTFFF 1,23,1,0,0,0,0,0,<.\device_info.c><device_info.c> 
-OPTFFF 1,24,1,0,0,0,0,0,<.\listview.c><listview.c> 
-OPTFFF 1,25,1,0,0,411,415,0,<.\player_ui.c><player_ui.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,44,0,0,0,58,0,0,0,177,2,0,0,20,1,0,0 }
-OPTFFF 1,26,1,0,0,0,0,0,<.\player_bg.c><player_bg.c> 
-OPTFFF 1,27,1,469762048,0,0,0,0,<.\play_list.c><play_list.c> 
-OPTFFF 1,28,1,0,0,0,0,0,<.\ili9325\ili9320.c><ili9320.c> 
-OPTFFF 1,29,1,0,0,0,0,0,<.\codec.c><codec.c> 
-OPTFFF 1,30,1,0,0,0,0,0,<.\spi_flash.c><spi_flash.c> 
-OPTFFF 1,31,1,318767104,0,0,0,0,<.\remote.c><remote.c> 
-OPTFFF 1,32,1,0,0,0,0,0,<..\..\examples\file\writespeed.c><writespeed.c> 
-OPTFFF 1,33,1,0,0,0,0,0,<..\..\examples\file\listdir.c><listdir.c> 
-OPTFFF 1,34,1,0,0,0,0,0,<..\..\examples\file\readspeed.c><readspeed.c> 
-OPTFFF 1,35,1,0,0,0,0,0,<..\..\examples\file\readwrite.c><readwrite.c> 
-OPTFFF 1,36,1,16777216,0,224,224,0,<.\picture.c><picture.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,22,0,0,0,29,0,0,0,155,2,0,0,247,0,0,0 }
-OPTFFF 2,37,1,0,0,0,0,0,<..\..\src\clock.c><clock.c> 
-OPTFFF 2,38,1,721420288,0,0,0,0,<..\..\src\idle.c><idle.c> 
-OPTFFF 2,39,1,0,0,0,0,0,<..\..\src\ipc.c><ipc.c> 
-OPTFFF 2,40,1,0,0,0,0,0,<..\..\src\mempool.c><mempool.c> 
-OPTFFF 2,41,1,0,0,0,0,0,<..\..\src\mem.c><mem.c> 
-OPTFFF 2,42,1,0,0,0,0,0,<..\..\src\object.c><object.c> 
-OPTFFF 2,43,1,0,0,0,0,0,<..\..\src\scheduler.c><scheduler.c> 
-OPTFFF 2,44,1,0,0,0,0,0,<..\..\src\thread.c><thread.c> 
-OPTFFF 2,45,1,0,0,0,0,0,<..\..\src\timer.c><timer.c> 
-OPTFFF 2,46,1,0,0,0,0,0,<..\..\src\irq.c><irq.c> 
-OPTFFF 2,47,1,0,0,0,0,0,<..\..\src\kservice.c><kservice.c> 
-OPTFFF 2,48,1,0,0,0,0,0,<..\..\src\device.c><device.c> 
-OPTFFF 2,49,1,0,0,0,0,0,<..\..\src\slab.c><slab.c> 
-OPTFFF 3,50,1,0,0,0,0,0,<..\..\libcpu\arm\stm32\stack.c><stack.c> 
-OPTFFF 3,51,1,0,0,0,0,0,<..\..\libcpu\arm\stm32\interrupt.c><interrupt.c> 
-OPTFFF 3,52,1,0,0,0,0,0,<..\..\libcpu\arm\stm32\cpu.c><cpu.c> 
-OPTFFF 3,53,1,0,0,0,0,0,<..\..\libcpu\arm\stm32\serial.c><serial.c> 
-OPTFFF 3,54,2,0,0,0,0,0,<..\..\libcpu\arm\stm32\context_rvds.S><context_rvds.S> 
-OPTFFF 3,55,2,654311424,0,0,0,0,<..\..\libcpu\arm\stm32\start_rvds.s><start_rvds.s> 
-OPTFFF 3,56,1,0,0,0,0,0,<..\..\libcpu\arm\stm32\fault.c><fault.c> 
-OPTFFF 3,57,2,0,0,0,0,0,<..\..\libcpu\arm\stm32\fault_rvds.S><fault_rvds.S> 
-OPTFFF 4,58,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\misc.c><misc.c> 
-OPTFFF 4,59,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_adc.c><stm32f10x_adc.c> 
-OPTFFF 4,60,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_bkp.c><stm32f10x_bkp.c> 
-OPTFFF 4,61,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_can.c><stm32f10x_can.c> 
-OPTFFF 4,62,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_crc.c><stm32f10x_crc.c> 
-OPTFFF 4,63,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dac.c><stm32f10x_dac.c> 
-OPTFFF 4,64,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dbgmcu.c><stm32f10x_dbgmcu.c> 
-OPTFFF 4,65,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_dma.c><stm32f10x_dma.c> 
-OPTFFF 4,66,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_exti.c><stm32f10x_exti.c> 
-OPTFFF 4,67,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_flash.c><stm32f10x_flash.c> 
-OPTFFF 4,68,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_fsmc.c><stm32f10x_fsmc.c> 
-OPTFFF 4,69,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_gpio.c><stm32f10x_gpio.c> 
-OPTFFF 4,70,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_i2c.c><stm32f10x_i2c.c> 
-OPTFFF 4,71,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_iwdg.c><stm32f10x_iwdg.c> 
-OPTFFF 4,72,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_pwr.c><stm32f10x_pwr.c> 
-OPTFFF 4,73,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rcc.c><stm32f10x_rcc.c> 
-OPTFFF 4,74,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_rtc.c><stm32f10x_rtc.c> 
-OPTFFF 4,75,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_sdio.c><stm32f10x_sdio.c> 
-OPTFFF 4,76,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_spi.c><stm32f10x_spi.c> 
-OPTFFF 4,77,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_tim.c><stm32f10x_tim.c> 
-OPTFFF 4,78,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_usart.c><stm32f10x_usart.c> 
-OPTFFF 4,79,1,0,0,0,0,0,<.\Libraries\STM32F10x_StdPeriph_Driver\src\stm32f10x_wwdg.c><stm32f10x_wwdg.c> 
-OPTFFF 5,80,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\otgd_fs_cal.c><otgd_fs_cal.c> 
-OPTFFF 5,81,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\otgd_fs_dev.c><otgd_fs_dev.c> 
-OPTFFF 5,82,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\otgd_fs_int.c><otgd_fs_int.c> 
-OPTFFF 5,83,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\otgd_fs_pcd.c><otgd_fs_pcd.c> 
-OPTFFF 5,84,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_core.c><usb_core.c> 
-OPTFFF 5,85,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_init.c><usb_init.c> 
-OPTFFF 5,86,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_int.c><usb_int.c> 
-OPTFFF 5,87,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_mem.c><usb_mem.c> 
-OPTFFF 5,88,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_regs.c><usb_regs.c> 
-OPTFFF 5,89,1,0,0,0,0,0,<.\Libraries\STM32_USB-FS-Device_Driver\src\usb_sil.c><usb_sil.c> 
-OPTFFF 6,90,1,0,0,0,0,0,<.\Libraries\CMSIS\Core\CM3\core_cm3.c><core_cm3.c> 
-OPTFFF 6,91,1,0,0,0,0,0,<.\Libraries\CMSIS\Core\CM3\system_stm32f10x.c><system_stm32f10x.c> 
-OPTFFF 7,92,1,0,0,0,0,0,<..\..\finsh\finsh_compiler.c><finsh_compiler.c> 
-OPTFFF 7,93,1,0,0,0,0,0,<..\..\finsh\finsh_error.c><finsh_error.c> 
-OPTFFF 7,94,1,0,0,0,0,0,<..\..\finsh\finsh_heap.c><finsh_heap.c> 
-OPTFFF 7,95,1,0,0,0,0,0,<..\..\finsh\finsh_init.c><finsh_init.c> 
-OPTFFF 7,96,1,0,0,0,0,0,<..\..\finsh\finsh_node.c><finsh_node.c> 
-OPTFFF 7,97,1,0,0,0,0,0,<..\..\finsh\finsh_ops.c><finsh_ops.c> 
-OPTFFF 7,98,1,0,0,0,0,0,<..\..\finsh\finsh_parser.c><finsh_parser.c> 
-OPTFFF 7,99,1,0,0,0,0,0,<..\..\finsh\finsh_token.c><finsh_token.c> 
-OPTFFF 7,100,1,0,0,0,0,0,<..\..\finsh\finsh_var.c><finsh_var.c> 
-OPTFFF 7,101,1,0,0,0,0,0,<..\..\finsh\finsh_vm.c><finsh_vm.c> 
-OPTFFF 7,102,1,0,0,0,0,0,<..\..\finsh\shell.c><shell.c> 
-OPTFFF 7,103,1,0,0,0,0,0,<..\..\finsh\symbol.c><symbol.c> 
-OPTFFF 7,104,1,167772160,0,0,0,0,<..\..\finsh\cmd.c><cmd.c> 
-OPTFFF 8,105,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_init.c><dfs_init.c> 
-OPTFFF 8,106,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_fs.c><dfs_fs.c> 
-OPTFFF 8,107,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_raw.c><dfs_raw.c> 
-OPTFFF 8,108,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_util.c><dfs_util.c> 
-OPTFFF 8,109,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_posix.c><dfs_posix.c> 
-OPTFFF 8,110,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\elmfat\dfs_elm.c><dfs_elm.c> 
-OPTFFF 8,111,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\elmfat\ff.c><ff.c> 
-OPTFFF 9,112,1,0,0,0,0,0,<..\..\net\lwip\src\core\dhcp.c><dhcp.c> 
-OPTFFF 9,113,1,0,0,0,0,0,<..\..\net\lwip\src\core\dns.c><dns.c> 
-OPTFFF 9,114,1,0,0,0,0,0,<..\..\net\lwip\src\core\init.c><init.c> 
-OPTFFF 9,115,1,0,0,0,0,0,<..\..\net\lwip\src\core\memp.c><memp.c> 
-OPTFFF 9,116,1,0,0,0,0,0,<..\..\net\lwip\src\core\netif.c><netif.c> 
-OPTFFF 9,117,1,16777216,0,528,528,0,<..\..\net\lwip\src\core\pbuf.c><pbuf.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,0,0,0,0,0,0,0,0,132,2,0,0,232,0,0,0 }
-OPTFFF 9,118,1,0,0,0,0,0,<..\..\net\lwip\src\core\raw.c><raw.c> 
-OPTFFF 9,119,1,0,0,0,0,0,<..\..\net\lwip\src\core\stats.c><stats.c> 
-OPTFFF 9,120,1,0,0,0,0,0,<..\..\net\lwip\src\core\sys.c><sys.c> 
-OPTFFF 9,121,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp.c><tcp.c> 
-OPTFFF 9,122,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp_in.c><tcp_in.c> 
-OPTFFF 9,123,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp_out.c><tcp_out.c> 
-OPTFFF 9,124,1,0,0,0,0,0,<..\..\net\lwip\src\core\udp.c><udp.c> 
-OPTFFF 9,125,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\autoip.c><autoip.c> 
-OPTFFF 9,126,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\icmp.c><icmp.c> 
-OPTFFF 9,127,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\igmp.c><igmp.c> 
-OPTFFF 9,128,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\inet.c><inet.c> 
-OPTFFF 9,129,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\inet_chksum.c><inet_chksum.c> 
-OPTFFF 9,130,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip.c><ip.c> 
-OPTFFF 9,131,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip_addr.c><ip_addr.c> 
-OPTFFF 9,132,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip_frag.c><ip_frag.c> 
-OPTFFF 9,133,1,0,0,0,0,0,<..\..\net\lwip\src\core\snmp\msg_in.c><msg_in.c> 
-OPTFFF 9,134,1,0,0,0,0,0,<..\..\net\lwip\src\core\snmp\msg_out.c><msg_out.c> 
-OPTFFF 9,135,1,0,0,0,0,0,<..\..\net\lwip\src\api\api_lib.c><api_lib.c> 
-OPTFFF 9,136,1,0,0,0,0,0,<..\..\net\lwip\src\api\api_msg.c><api_msg.c> 
-OPTFFF 9,137,1,0,0,0,0,0,<..\..\net\lwip\src\api\err.c><err.c> 
-OPTFFF 9,138,1,0,0,0,0,0,<..\..\net\lwip\src\api\netbuf.c><netbuf.c> 
-OPTFFF 9,139,1,0,0,0,0,0,<..\..\net\lwip\src\api\netdb.c><netdb.c> 
-OPTFFF 9,140,1,0,0,0,0,0,<..\..\net\lwip\src\api\netifapi.c><netifapi.c> 
-OPTFFF 9,141,1,0,0,0,0,0,<..\..\net\lwip\src\api\tcpip.c><tcpip.c> 
-OPTFFF 9,142,1,0,0,0,0,0,<..\..\net\lwip\src\netif\etharp.c><etharp.c> 
-OPTFFF 9,143,1,33554432,0,0,0,0,<..\..\net\lwip\src\netif\ethernetif.c><ethernetif.c> 
-OPTFFF 9,144,1,0,0,0,0,0,<..\..\net\lwip\src\netif\loopif.c><loopif.c> 
-OPTFFF 9,145,1,0,0,0,0,0,<..\..\net\lwip\src\arch\sys_arch_init.c><sys_arch_init.c> 
-OPTFFF 9,146,1,0,0,0,0,0,<..\..\net\lwip\src\arch\sys_arch.c><sys_arch.c> 
-OPTFFF 9,147,1,0,0,0,0,0,<..\..\net\lwip\src\api\sockets.c><sockets.c> 
-OPTFFF 10,148,1,0,0,0,0,0,<.\mp3\mp3dec.c><mp3dec.c> 
-OPTFFF 10,149,1,0,0,0,0,0,<.\mp3\mp3tabs.c><mp3tabs.c> 
-OPTFFF 10,150,1,0,0,0,0,0,<.\mp3\real\bitstream.c><bitstream.c> 
-OPTFFF 10,151,1,0,0,0,0,0,<.\mp3\real\buffers.c><buffers.c> 
-OPTFFF 10,152,1,0,0,0,0,0,<.\mp3\real\dct32.c><dct32.c> 
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+OPTFFF 10,145,1,0,0,0,0,0,<.\mp3\real\bitstream.c><bitstream.c> 
+OPTFFF 10,146,1,0,0,0,0,0,<.\mp3\real\buffers.c><buffers.c> 
+OPTFFF 10,147,1,0,0,0,0,0,<.\mp3\real\dct32.c><dct32.c> 
+OPTFFF 10,148,1,0,0,0,0,0,<.\mp3\real\dequant.c><dequant.c> 
+OPTFFF 10,149,1,0,0,0,0,0,<.\mp3\real\dqchan.c><dqchan.c> 
+OPTFFF 10,150,1,0,0,0,0,0,<.\mp3\real\huffman.c><huffman.c> 
+OPTFFF 10,151,1,0,0,0,0,0,<.\mp3\real\hufftabs.c><hufftabs.c> 
+OPTFFF 10,152,1,0,0,0,0,0,<.\mp3\real\imdct.c><imdct.c> 
+OPTFFF 10,153,1,0,0,0,0,0,<.\mp3\real\scalfact.c><scalfact.c> 
+OPTFFF 10,154,1,0,0,0,0,0,<.\mp3\real\stproc.c><stproc.c> 
+OPTFFF 10,155,1,0,0,0,0,0,<.\mp3\real\subband.c><subband.c> 
+OPTFFF 10,156,1,0,0,0,0,0,<.\mp3\real\trigtabs.c><trigtabs.c> 
+OPTFFF 10,157,2,0,0,0,0,0,<.\mp3\real\arm\asmpoly_thumb2.s><asmpoly_thumb2.s> 
+OPTFFF 10,158,2,0,0,0,0,0,<.\mp3\real\arm\asmmisc.s><asmmisc.s> 
+OPTFFF 11,159,1,0,0,0,0,0,<..\..\rtgui\common\rtgui_object.c><rtgui_object.c> 
+OPTFFF 11,160,1,0,0,0,0,0,<..\..\rtgui\common\rtgui_system.c><rtgui_system.c> 
+OPTFFF 11,161,1,0,0,0,0,0,<..\..\rtgui\common\rtgui_theme.c><rtgui_theme.c> 
+OPTFFF 11,162,1,0,0,0,0,0,<..\..\rtgui\common\asc12font.c><asc12font.c> 
+OPTFFF 11,163,1,0,0,0,0,0,<..\..\rtgui\common\asc16font.c><asc16font.c> 
+OPTFFF 11,164,1,0,0,0,0,0,<..\..\rtgui\common\color.c><color.c> 
+OPTFFF 11,165,1,0,0,0,0,0,<..\..\rtgui\common\dc.c><dc.c> 
+OPTFFF 11,166,1,0,0,0,0,0,<..\..\rtgui\common\dc_buffer.c><dc_buffer.c> 
+OPTFFF 11,167,1,0,0,0,0,0,<..\..\rtgui\common\dc_hw.c><dc_hw.c> 
+OPTFFF 11,168,1,0,0,0,0,0,<..\..\rtgui\common\filerw.c><filerw.c> 
+OPTFFF 11,169,1,0,0,0,0,0,<..\..\rtgui\common\font.c><font.c> 
+OPTFFF 11,170,1,0,0,0,0,0,<..\..\rtgui\common\image.c><image.c> 
+OPTFFF 11,171,1,0,0,0,0,0,<..\..\rtgui\common\image_xpm.c><image_xpm.c> 
+OPTFFF 11,172,1,0,0,0,0,0,<..\..\rtgui\common\image_hdc.c><image_hdc.c> 
+OPTFFF 11,173,1,0,0,0,0,0,<..\..\rtgui\common\region.c><region.c> 
+OPTFFF 11,174,1,0,0,0,0,0,<..\..\rtgui\server\server.c><server.c> 
+OPTFFF 11,175,1,0,0,0,0,0,<..\..\rtgui\server\driver.c><driver.c> 
+OPTFFF 11,176,1,0,0,0,0,0,<..\..\rtgui\server\panel.c><panel.c> 
+OPTFFF 11,177,1,0,0,0,0,0,<..\..\rtgui\widgets\widget.c><widget.c> 
+OPTFFF 11,178,1,0,0,0,0,0,<..\..\rtgui\widgets\window.c><window.c> 
+OPTFFF 11,179,1,0,0,0,0,0,<..\..\rtgui\widgets\workbench.c><workbench.c> 
+OPTFFF 11,180,1,0,0,0,0,0,<..\..\rtgui\widgets\view.c><view.c> 
+OPTFFF 11,181,1,0,0,0,0,0,<..\..\rtgui\widgets\box.c><box.c> 
+OPTFFF 11,182,1,0,0,0,0,0,<..\..\rtgui\widgets\button.c><button.c> 
+OPTFFF 11,183,1,0,0,0,0,0,<..\..\rtgui\widgets\container.c><container.c> 
+OPTFFF 11,184,1,0,0,0,0,0,<..\..\rtgui\widgets\iconbox.c><iconbox.c> 
+OPTFFF 11,185,1,0,0,0,0,0,<..\..\rtgui\widgets\label.c><label.c> 
+OPTFFF 11,186,1,0,0,0,0,0,<..\..\rtgui\widgets\textbox.c><textbox.c> 
+OPTFFF 11,187,1,0,0,0,0,0,<..\..\rtgui\widgets\title.c><title.c> 
+OPTFFF 11,188,1,0,0,0,0,0,<..\..\rtgui\widgets\toplevel.c><toplevel.c> 
+OPTFFF 11,189,1,0,0,0,0,0,<..\..\rtgui\server\mouse.c><mouse.c> 
+OPTFFF 11,190,1,0,0,0,0,0,<..\..\rtgui\server\topwin.c><topwin.c> 
+OPTFFF 11,191,1,0,0,0,0,0,<..\..\rtgui\common\font_hz_file.c><font_hz_file.c> 
+OPTFFF 11,192,1,0,0,0,0,0,<..\..\rtgui\common\hz16font.c><hz16font.c> 
+OPTFFF 11,193,1,0,0,0,0,0,<..\..\rtgui\common\hz12font.c><hz12font.c> 
+OPTFFF 11,194,1,0,0,0,0,0,<..\..\rtgui\widgets\list_view.c><list_view.c> 
+OPTFFF 11,195,1,0,0,0,0,0,<..\..\rtgui\widgets\filelist_view.c><filelist_view.c> 
+OPTFFF 12,196,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\hw_config.c><hw_config.c> 
+OPTFFF 12,197,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\mass_mal.c><mass_mal.c> 
+OPTFFF 12,198,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\memory.c><memory.c> 
+OPTFFF 12,199,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_bot.c><usb_bot.c> 
+OPTFFF 12,200,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\scsi_data.c><scsi_data.c> 
+OPTFFF 12,201,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_desc.c><usb_desc.c> 
+OPTFFF 12,202,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_endp.c><usb_endp.c> 
+OPTFFF 12,203,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_istr.c><usb_istr.c> 
+OPTFFF 12,204,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_prop.c><usb_prop.c> 
+OPTFFF 12,205,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_pwr.c><usb_pwr.c> 
+OPTFFF 12,206,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_scsi.c><usb_scsi.c> 
+OPTFFF 12,207,1,0,0,0,0,0,<.\Libraries\Mass_Storage\src\usb_main.c><usb_main.c> 
 
-ExtF <E:\Projects\opensvn\rt-thread\google\net\lwip\src\lwipopts.h> 190,198,0,{ 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,66,0,0,0,87,0,0,0,199,2,0,0,49,1,0,0 }
 
 TARGOPT 1, (RT-Thread STM32 Radio)
  ADSCLK=8000000
@@ -254,13 +250,11 @@ TARGOPT 1, (RT-Thread STM32 Radio)
   OPTKEY 0,(ARMDBGFLAGS)(-T0)
   OPTKEY 0,(DLGUARM)((105=150,189,819,540,0)(106=-1,-1,-1,-1,0)(107=-1,-1,-1,-1,0))
   OPTKEY 0,(JL2CM3)(-U20090110 -O718 -S8 -C0 -JU1 -JI127.0.0.1 -JP0 -N00("ARM CoreSight SW-DP") -D00(1BA01477) -L00(0) -TO18 -TC10000000 -TP21 -TDS8004 -TDT0 -TDC1F -TIEFFFFFFFF -TIP8 -FO27 -FD20000000 -FC800 -FN1 -FF0STM32F10x_512 -FS08000000 -FL080000)
-  OPTBB 0,0,551,1,134302702,0,0,0,0,1,<player_ui.c>()()
-  OPTBB 1,0,123,1,134319464,0,0,0,0,1,<mp3.c>()()
-  OPTWA 0,1,(_mp)
-  OPTWA 1,1,(_netbuf)
-  OPTWA 2,1,(decoder)
-  OPTMM 1,8,(text)
-  OPTMM 2,8,(mimeBuffer)
+  OPTBB 0,0,80,1,134344174,0,0,0,0,1,<application.c>()()
+  OPTBB 1,0,74,1,134344144,0,0,0,0,1,<application.c>()()
+  OPTWA 0,1,(_netbuf)
+  OPTWA 1,1,(tinfo)
+  OPTMM 1,0,(0x68000000)
   OPTDF 0x82
   OPTLE <>
   OPTLC <>
diff --git a/bsp/stm32_radio/rtconfig.h b/bsp/stm32_radio/rtconfig.h
index 1a25d6846c34a70f73390041849d30d4f6fd306e..5df75de88d2b775ff7d1ab20027dde23458dead6 100644
--- a/bsp/stm32_radio/rtconfig.h
+++ b/bsp/stm32_radio/rtconfig.h
@@ -83,6 +83,7 @@
 
 #define RT_USING_DFS_ELMFAT
 #define RT_DFS_ELM_WORD_ACCESS
+#define RT_DFS_ELM_DRIVES			2
 
 /* SECTION: DFS options */
 /* the max number of mounted filesystem */
diff --git a/bsp/stm32_radio/spi_flash.c b/bsp/stm32_radio/spi_flash.c
index ddc186aa97553c5cc9a4f10f5343a0535b4ba13a..07a7017b38cb95e8284c6891a149ef41aef3d4c9 100644
--- a/bsp/stm32_radio/spi_flash.c
+++ b/bsp/stm32_radio/spi_flash.c
@@ -158,16 +158,36 @@ static rt_err_t rt_spi_flash_control(rt_device_t dev, rt_uint8_t cmd, void *args
 
 static rt_size_t rt_spi_flash_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
 {
-    /* only supply single block read: block size 512Byte */
-    read_page(pos/512,buffer);
-    return RT_EOK;
+    rt_uint8_t *ptr;
+    rt_uint32_t index, nr;
+
+    nr = size/512;
+    ptr = (rt_uint8_t*)buffer;
+
+    for (index = 0; index < nr; index ++)
+    {
+        /* only supply single block read: block size 512Byte */
+        read_page((pos + index * 512)/512, &ptr[index * 512]);
+    }
+
+    return nr * 512;
 }
 
 static rt_size_t rt_spi_flash_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
 {
-    /* only supply single block write: block size 512Byte */
-    write_page(pos/512,(unsigned char*)buffer);
-    return RT_EOK;
+    rt_uint8_t *ptr;
+    rt_uint32_t index, nr;
+
+    nr = size / 512;
+    ptr = (rt_uint8_t*)buffer;
+
+    for (index = 0; index < nr; index ++)
+    {
+        /* only supply single block write: block size 512Byte */
+        write_page((pos + index * 512)/512, &ptr[index * 512]);
+    }
+
+    return nr * 512;
 }
 
 void rt_hw_spi_flash_init(void)
@@ -175,6 +195,7 @@ void rt_hw_spi_flash_init(void)
     GPIO_Configuration();
 
     /* register spi_flash device */
+    spi_flash_device.type    = RT_Device_Class_Block;
     spi_flash_device.init    = rt_spi_flash_init;
     spi_flash_device.open    = rt_spi_flash_open;
     spi_flash_device.close   = rt_spi_flash_close;
@@ -186,5 +207,5 @@ void rt_hw_spi_flash_init(void)
     spi_flash_device.private = RT_NULL;
 
     rt_device_register(&spi_flash_device, "spi0",
-                       RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
+                       RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
 }