These software package had verified on STM32F4 discovery platform for reading mp3 file from USB mass storage and decoding/playing it.




File list:
STM32F4_USB_MSC_MP3_Ver_II
.........................\Conf
.........................\....\ffconf.h
.........................\....\usbd_conf.h
.........................\....\usbd_desc.h
.........................\....\usbh_conf.h
.........................\....\usbh_usr.h
.........................\....\usb_conf.h
.........................\Core
.........................\....\cmsis
.........................\....\.....\arm_common_tables.h
.........................\....\.....\arm_math.h
.........................\....\.....\core_cm0.h
.........................\....\.....\core_cm3.h
.........................\....\.....\core_cm4.h
.........................\....\.....\core_cm4_simd.h
.........................\....\.....\core_cmFunc.h
.........................\....\.....\core_cmInstr.h
.........................\....\stm32
.........................\....\.....\stm32f4xx.h
.........................\....\.....\system_stm32f4xx.h
.........................\Debug
.........................\.....\Exe
.........................\.....\...\STM32F4_USB_MSC.out
.........................\.....\...\STM32F4_USB_MSC.sim
.........................\.....\List
.........................\.....\Obj
.........................\.....\...\Audio.o
.........................\.....\...\bitstream.o
.........................\.....\...\buffers.o
.........................\.....\...\ccsbcs.o
.........................\.....\...\dct32.o
.........................\.....\...\dequant.o
.........................\.....\...\diskio.o
.........................\.....\...\dqchan.o
.........................\.....\...\fattime.o
.........................\.....\...\ff.o
.........................\.....\...\huffman.o
.........................\.....\...\hufftabs.o
.........................\.....\...\imdct.o
.........................\.....\...\main.o
.........................\.....\...\misc.o
.........................\.....\...\mp3dec.o
.........................\.....\...\mp3tabs.o
.........................\.....\...\polyphase.o
.........................\.....\...\scalfact.o
.........................\.....\...\startup_stm32f4xx.o
.........................\.....\...\stm32f4xx_adc.o
.........................\.....\...\stm32f4xx_can.o
.........................\.....\...\stm32f4xx_crc.o
.........................\.....\...\stm32f4xx_cryp.o
.........................\.....\...\stm32f4xx_cryp_aes.o
.........................\.....\...\stm32f4xx_cryp_des.o
.........................\.....\...\stm32f4xx_cryp_tdes.o
.........................\.....\...\stm32f4xx_dac.o
.........................\.....\...\stm32f4xx_dbgmcu.o
.........................\.....\...\stm32f4xx_dcmi.o
.........................\.....\...\stm32f4xx_dma.o
.........................\.....\...\stm32f4xx_exti.o
.........................\.....\...\stm32f4xx_flash.o
.........................\.....\...\stm32f4xx_fsmc.o
.........................\.....\...\stm32f4xx_gpio.o
.........................\.....\...\stm32f4xx_hash.o
.........................\.....\...\stm32f4xx_hash_md5.o
.........................\.....\...\stm32f4xx_hash_sha1.o
.........................\.....\...\stm32f4xx_i2c.o
.........................\.....\...\stm32f4xx_it.o
.........................\.....\...\stm32f4xx_iwdg.o
.........................\.....\...\stm32f4xx_pwr.o
.........................\.....\...\stm32f4xx_rcc.o
.........................\.....\...\stm32f4xx_rng.o
.........................\.....\...\stm32f4xx_rtc.o
.........................\.....\...\stm32f4xx_sdio.o
.........................\.....\...\stm32f4xx_spi.o
.........................\.....\...\stm32f4xx_syscfg.o
.........................\.....\...\stm32f4xx_tim.o
.........................\.....\...\stm32f4xx_usart.o
.........................\.....\...\stm32f4xx_wwdg.o
.........................\.....\...\STM32F4_USB_MSC.pbd
.........................\.....\...\stproc.o
.........................\.....\...\subband.o
.........................\.....\...\system_stm32f4xx.o
.........................\.....\...\trigtabs_fixpt.o
.........................\.....\...\usbh_core.o
.........................\.....\...\usbh_hcs.o
.........................\.....\...\usbh_ioreq.o
.........................\.....\...\usbh_msc_bot.o
.........................\.....\...\usbh_msc_core.o
.........................\.....\...\usbh_msc_fatfs.o
.........................\.....\...\usbh_msc_scsi.o
.........................\.....\...\usbh_stdreq.o
.........................\.....\...\usbh_usr.o
.........................\.....\...\usb_bsp.o
.........................\.....\...\usb_core.o
.........................\.....\...\usb_dcd.o
.........................\.....\...\usb_dcd_int.o
.........................\.....\...\usb_hcd.o
.........................\.....\...\usb_hcd_int.o
.........................\.....\...\usb_otg.o
.........................\fat_fs
.........................\......\inc
.........................\......\...\diskio.h
.........................\......\...\fattime.h
.........................\......\...\ff.h
.........................\......\...\integer.h
.........................\......\src
.........................\......\...\option
.........................\......\...\......\ccsbcs.c
.........................\......\...\......\syncobj.c
.........................\......\...\diskio.c
.........................\......\...\fattime.c
.........................\......\...\ff.c
.........................\global_inc
.........................\..........\Audio.h
.........................\..........\main.h
.........................\..........\stm32f4xx_conf.h
.........................\..........\stm32f4xx_it.h
.........................\helix
.........................\.....\inc
.........................\.....\...\assembly.h
.........................\.....\...\coder.h
.........................\.....\...\mp3common.h
.........................\.....\...\mp3dec.h
.........................\.....\...\mpadecobjfixpt.h
.........................\.....\...\platform.h
.........................\.....\...\statname.h
.........................\.....\src
.........................\.....\...\bitstream.c
.........................\.....\...\buffers.c
.........................\.....\...\dct32.c
.........................\.....\...\dequant.c
.........................\.....\...\dqchan.c
.........................\.....\...\huffman.c
.........................\.....\...\hufftabs.c
.........................\.....\...\imdct.c
.........................\.....\...\mp3dec.c
.........................\.....\...\mp3tabs.c
.........................\.....\...\polyphase.c
.........................\.....\...\scalfact.c
.........................\.....\...\stproc.c
.........................\.....\...\subband.c
.........................\.....\...\trigtabs_fixpt.c
.........................\main_src
.........................\........\Audio.c
.........................\........\main.c
.........................\........\stm32f4xx_it.c
.........................\........\syscalls.c
.........................\........\system_stm32f4xx.c
.........................\........\usbh_usr.c
.........................\........\usb_bsp.c
.........................\settings
.........................\........\STM32F4_USB_MSC.cspy.bat
.........................\........\STM32F4_USB_MSC.dbgdt
.........................\........\STM32F4_USB_MSC.dni
.........................\........\STM32F4_USB_MSC.wsdt
.........................\StdPeriph
.........................\.........\inc
.........................\.........\...\misc.h
.........................\.........\...\stm32f4xx_adc.h
.........................\.........\...\stm32f4xx_can.h
.........................\.........\...\stm32f4xx_crc.h
.........................\.........\...\stm32f4xx_cryp.h
.........................\.........\...\stm32f4xx_dac.h
.........................\.........\...\stm32f4xx_dbgmcu.h
.........................\.........\...\stm32f4xx_dcmi.h
.........................\.........\...\stm32f4xx_dma.h
.........................\.........\...\stm32f4xx_exti.h
.........................\.........\...\stm32f4xx_flash.h
.........................\.........\...\stm32f4xx_fsmc.h
.........................\.........\...\stm32f4xx_gpio.h
.........................\.........\...\stm32f4xx_hash.h
.........................\.........\...\stm32f4xx_i2c.h
.........................\.........\...\stm32f4xx_iwdg.h
.........................\.........\...\stm32f4xx_pwr.h
.........................\.........\...\stm32f4xx_rcc.h
.........................\.........\...\stm32f4xx_rng.h
.........................\.........\...\stm32f4xx_rtc.h
.........................\.........\...\stm32f4xx_sdio.h
.........................\.........\...\stm32f4xx_spi.h
.........................\.........\...\stm32f4xx_syscfg.h
.........................\.........\...\stm32f4xx_tim.h
.........................\.........\...\stm32f4xx_usart.h
.........................\.........\...\stm32f4xx_wwdg.h
.........................\.........\src
.........................\.........\...\misc.c
.........................\.........\...\stm32f4xx_adc.c
.........................\.........\...\stm32f4xx_can.c
.........................\.........\...\stm32f4xx_crc.c
.........................\.........\...\stm32f4xx_cryp.c
.........................\.........\...\stm32f4xx_cryp_aes.c
.........................\.........\...\stm32f4xx_cryp_des.c
.........................\.........\...\stm32f4xx_cryp_tdes.c
.........................\.........\...\stm32f4xx_dac.c
.........................\.........\...\stm32f4xx_dbgmcu.c
.........................\.........\...\stm32f4xx_dcmi.c
.........................\.........\...\stm32f4xx_dma.c
.........................\.........\...\stm32f4xx_exti.c
.........................\.........\...\stm32f4xx_flash.c
.........................\.........\...\stm32f4xx_fsmc.c
.........................\.........\...\stm32f4xx_gpio.c
.........................\.........\...\stm32f4xx_hash.c
.........................\.........\...\stm32f4xx_hash_md5.c
.........................\.........\...\stm32f4xx_hash_sha1.c
.........................\.........\...\stm32f4xx_i2c.c
.........................\.........\...\stm32f4xx_iwdg.c
.........................\.........\...\stm32f4xx_pwr.c
.........................\.........\...\stm32f4xx_rcc.c
.........................\.........\...\stm32f4xx_rng.c
.........................\.........\...\stm32f4xx_rtc.c
.........................\.........\...\stm32f4xx_sdio.c
.........................\.........\...\stm32f4xx_spi.c
.........................\.........\...\stm32f4xx_syscfg.c
.........................\.........\...\stm32f4xx_tim.c
.........................\.........\...\stm32f4xx_usart.c
.........................\.........\...\stm32f4xx_wwdg.c
.........................\USB_Host
.........................\........\Class
.........................\........\.....\HID
.........................\........\.....\...\inc
.........................\........\.....\...\...\usbh_hid_core.h
.........................\........\.....\...\...\usbh_hid_keybd.h
.........................\........\.....\...\...\usbh_hid_mouse.h
.........................\........\.....\...\src
.........................\........\.....\...\...\usbh_hid_core.c
.........................\........\.....\...\...\usbh_hid_keybd.c
.........................\........\.....\...\...\usbh_hid_mouse.c
.........................\........\.....\MSC
.........................\........\.....\...\inc
.........................\........\.....\...\...\usbh_msc_bot.h
.........................\........\.....\...\...\usbh_msc_core.h
.........................\........\.....\...\...\usbh_msc_scsi.h
.........................\........\.....\...\src
.........................\........\.....\...\...\usbh_msc_bot.c
.........................\........\.....\...\...\usbh_msc_core.c
.........................\........\.....\...\...\usbh_msc_fatfs.c
.........................\........\.....\...\...\usbh_msc_scsi.c
.........................\........\.....\...\Makefile
.........................\........\Core
.........................\........\....\inc
.........................\........\....\...\usbh_core.h
.........................\........\....\...\usbh_def.h
.........................\........\....\...\usbh_hcs.h
.........................\........\....\...\usbh_ioreq.h
.........................\........\....\...\usbh_stdreq.h
.........................\........\....\src
.........................\........\....\...\usbh_core.c
.........................\........\....\...\usbh_hcs.c
.........................\........\....\...\usbh_ioreq.c
.........................\........\....\...\usbh_stdreq.c
.........................\........\....\Makefile
.........................\USB_OTG
.........................\.......\inc
.........................\.......\...\usb_bsp.h
.........................\.......\...\usb_core.h
.........................\.......\...\usb_dcd.h
.........................\.......\...\usb_dcd_int.h
.........................\.......\...\usb_defines.h
.........................\.......\...\usb_hcd.h
.........................\.......\...\usb_hcd_int.h
.........................\.......\...\usb_otg.h
.........................\.......\...\usb_regs.h
.........................\.......\src
.........................\.......\...\usb_core.c
.........................\.......\...\usb_dcd.c
.........................\.......\...\usb_dcd_int.c
.........................\.......\...\usb_hcd.c
.........................\.......\...\usb_hcd_int.c
.........................\.......\...\usb_otg.c
.........................\EW1E28.tmp
.........................\EWC54.tmp
.........................\startup_stm32f4xx.s
.........................\stm32f40x_flash.icf
.........................\STM32F4_MP3_MSC.IAB
.........................\STM32F4_MP3_MSC.IAD
.........................\STM32F4_MP3_MSC.IMB
.........................\STM32F4_MP3_MSC.IMD
.........................\STM32F4_MP3_MSC.PFI
.........................\STM32F4_MP3_MSC.PO
.........................\STM32F4_MP3_MSC.PR
.........................\STM32F4_MP3_MSC.PRI
.........................\STM32F4_MP3_MSC.PS
.........................\STM32F4_MP3_MSC.WK3
.........................\STM32F4_USB_MSC.dep
.........................\STM32F4_USB_MSC.ewd
.........................\STM32F4_USB_MSC.ewp
.........................\STM32F4_USB_MSC.eww