[[fm]]
 
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fm [2018/05/11 00:55]
 fm [2022/04/16 12:23] (current)
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 +==== Emitter ====
 +
 +FT50B fm modulator
 +
 +  * http://www.pcw.my/newweb/eng/os_auction_view_full.php?id=383# FT50B fm modulator
 +  * http://s2com.com.my/index.php?route=product/product&manufacturer_id=163&product_id=14973&page=111
 +
 + IN174ELAJB1SANMY-446890
 +
 +===== TODO =====
 +
 +  * https://talk.maemo.org/showthread.php?p=1544171#post1544171# NokiaN9
 +  * https://www.theverge.com/2019/11/26/20981630/raspberry-pi-pirate-radio-fm-station-35-dollars-diy# RpI
 + 
 + 
 +
 +===== [[Samsung]] : YP =====
 +
 +  * http://en.wikipedia.org/wiki/Yepp
 +  * http://samsung.com/Products/MP3Player/MP3Player/YP_U2JZWXAA.asp
 +  * http://www.ldlc.com/fiche/PB00042731.html
 +  * http://www.amazon.co.uk/Samsung-YP-U2R-UltraSlim-Player-Radio/dp/B000IOMUK6
 +  * http://www.anythingbutipod.com/forum/showthread.php?t=24033
 +
 +  YP-T6
 +
 +T7 :
 +  * http://www.rockbox.org/twiki/bin/view/Main/SamsungP2Port
 +  * http://www.rockbox.org/twiki/bin/view/Main/NonArchos#Samsung
 +  * http://wiki.ubuntu.org.cn/index.php?title=UbuntuWiki:UKTeam/Hardware&variant=zh-tw#Personal_Audio.2FVideo_Entertainment_Devices_-_OGG_compatible
 +
 +@related: [[oga]] [[mp3]] [[radio]]
 +
 +==== [[Samsung]] : YP-U2R ZB/XEF ====
 +
 +I bought this neat device EAN=8808979896172 Ref=AH69-01705C a couple of years ago, and today December 2008 the device crashed my [[Laptop]] and went hotter than hell...
 +
 +I fear the battery has some issue, so I put it in the freezer...
 +
 +Of course the 1 year old warranty is over ...
 +
 +Hopefully 10 min I got it back and he resurrected ... happy ending...
 +
 +It seems also to happened on [[ipod]] (check link)
 +
 +
 +Anyway did you know about this Crimosoft treat:
 + 
 +  * http://wiki.xiph.org/index.php/Talk:PortablePlayers/SamsungYepp#YP-U2
 +
 +
 +  YP U2 : lsusb : ID 04e8:5050 Samsung Electronics Co., Ltd
 +  $ cat /mnt/sdb1/system/system.ver
 +  VER 2.16 RF
 +  MODEL YP-U2
 +  FWUP READY
 +
 +
 +  fdisk -l /dev/sdb
 +  Note: sector size is 2048 (not 512)
 +  Disk /dev/sdb: 990 MB, 990904320 bytes
 +  252 heads, 60 sectors/track, 32 cylinders
 +  Units = cylinders of 15120 * 2048 = 30965760 bytes
 +  Disk identifier: 0x00000000
 +   Device Boot      Start         End      Blocks   Id  System
 +  /dev/sdb1   *           1          32      967560    b  W95 FAT32
 +  Partition 1 has different physical/logical beginnings (non-Linux?):
 +     phys=(0, 0, 60) logical=(0, 1, 1)
 +
 +[[Firmware]] :
 +
 +  ed2k://|file|20070214094036296_Samsung-YP-U2-V2.169-RDSFR.zip|4407198|294880fc2a99612a995fe9d230c0d8f2|
 +
 +Backup:
 +  cat /dev/sda | bzip2 -9 - > 04e8-5050-samsung-sda.img.bz2
 +
 +Restore:
 +  img="04e8-5050-samsung.img" ; sudo ddrescue -v g "$img" /dev/sda "$img.log"
 +  sudo ddrescue -C -r8 -b 2048 -v "$img" /dev/sda "$img.log"
 + 
 +#RockBox gave me some info of the internals : 
 +  
 +  < pamaury> the SoC is STMP3550
 +  < pamaury> it's a super strange 24-bit DSP with general purpose instructions
 +  < pamaury> and it uses raw NAND Flash
 +
 +  * http://www.digchip.com/datasheets/parts/datasheet/649/STMP3550.php
 +  * http://www.ilounge.com/index.php/news/comments/sigmatel-d-major-stmp3550-chip-powers-ipod-shuffle/
 +
 +@TaG: SigmA
 +
 +
 +
 +==== hal ====
 +
 +<code>
 +A security policy in place prevents this sender from sending this message to this recipient, see message bus configuration file (rejected message had interface "org.freedesktop.Hal.Device.Volume" member "Mount" error name "(unset)" destination "org.freedesktop.Hal").
 +</code>
 +
 +==== reformat  ====
 +
 +  time sudo badblocks -v -o badblocks  /dev/sdb
 +
 +  time sudo mkfs.msdos -I -S 2048 -F 16 -n "audioplayer" -l badblocks  /dev/sda ; dmesg
 +
 +  usb 1-2: reset full speed USB device using ohci_hcd and address 2
 +  sd 0:0:0:0: [sda] Result: hostbyte=0x05 driverbyte=0x00
 +  end_request: I/O error, dev sda, sector 373488
 +  Buffer I/O error on device sda, logical block 46686
 +  usb 1-2: reset full speed USB device using ohci_hcd and address 2
 +  usb 1-2: reset full speed USB device using ohci_hcd and address 2
 +
 +
 +Reformat :
 +
 +  fdisk -l /dev/sdb
 +  Note: sector size is 2048 (not 512)
 +  Disk /dev/sdb: 990 MB, 990904320 bytes
 +  31 heads, 61 sectors/track, 255 cylinders
 +  Units = cylinders of 1891 * 2048 = 3872768 bytes
 +  Disk identifier: 0x00000000
 +  Device Boot      Start         End      Blocks   Id  System
 +  /dev/sdb1               1         255      964288    b  W95 FAT32
 +
 +  sudo mkfs.msdos -I -S 2048 -c -F 16 -n "audioplayer"  /dev/sdb # or /sdb1
 +
 +  sudo parted  /dev/sdb  -s print
 +  Warning: Device /dev/sdb has a logical sector size of 2048.  Not all parts of GNU   Parted support this at the moment, and the working code is HIGHLY EXPERIMENTAL.
 +  Model: Samsung YP-U2 (scsi)
 +  Disk /dev/sdb: 991MB
 +  Sector size (logical/physical): 2048B/512B
 +  Partition Table: msdos
 +  Number  Start  End  Size  Type  File system  Flags
 +  FAT: logical sector size too small for device (logical sector size = 512)
 +  dmesg
 +  usb 6-3: new high speed USB device using ehci_hcd and address 2
 +  usb 6-3: configuration #1 chosen from 1 choice
 +  usbcore: registered new interface driver libusual
 +  Initializing USB Mass Storage driver...
 +  scsi6 : SCSI emulation for USB Mass Storage devices
 +  usbcore: registered new interface driver usb-storage
 +  USB Mass Storage support registered.
 +  scsi 6:0:0:0: Direct-Access     Samsung  YP-U2            0100 PQ: 0 ANSI: 4
 +  sd 6:0:0:0: [sdb] 483840 2048-byte hardware sectors (991 MB)
 +  sd 6:0:0:0: [sdb] Write Protect is off
 +  sd 6:0:0:0: [sdb] 483840 2048-byte hardware sectors (991 MB)
 +  sd 6:0:0:0: [sdb] Write Protect is off
 +   sdb: sdb1
 +  sd 6:0:0:0: [sdb] Attached SCSI removable disk
 +  sd 6:0:0:0: Attached scsi generic sg2 type 0
 +  attempt to access beyond end of device
 +  sdb1: rw=0, want=7366420672, limit=1935120
 +
 +
 +
 +
 +  format /fs:fat /a:512 /v:mediaplayer h:
 +  Insérez un nouveau disque pour le lecteur H:
 +  et appuyez sur ENTRÉE lorsque vous êtes prêt...
 +  Le type du système de fichiers est FAT32.
 +  Le nouveau type de système de fichiers est FAT.
 +  Vérification de 945 Mo
 +  La taille de cluster spécifiée est insuffisante. La taille minimale
 +  de cluster valide pour ce lecteur est 2048.
 +
 +
 +==== parted ====
 +
 +  sudo parted /dev/sda -s unit b mklabel msdos mkpart primary fat16 32256 100%  toggle 1 boot print
 +  Warning: Device /dev/sda has a logical sector size of 2048.  Not all parts of GNU  Parted support this at the moment, and the working code is HIGHLY EXPERIMENTAL.
 +  Backtrace has 4 calls on stack:
 +  4: /lib/libparted-1.8.so.12(ped_assert+0x3b) [0xb7feb8cb]
 +  3: /lib/libparted-1.8.so.12(ped_disk_get_partition+0x4b) [0xb7ff0b1b]
 +
 +
 +http://parted.alioth.debian.org/cgi-bin/trac.cgi/ticket/213
 +
 +==== wav encoder ====
 +
 +  IFFRfE
 +  WAVEfmt
 +  fact
 +  LIST
 +  INFOISFT
 +  SIGMATEL
 +
 +
 +==== Misc ====
 +
 +  * http://www.nslu2-linux.org/wiki/Applications/Aquila
 +
 +  * http://www.rockbox.org/twiki/bin/view/Main/TargetStatus
 +
 +  * http://audacityteam.org/wiki/index.php?title=Sanitising_Speech_Recordings_Taken_with_portable_audio_player-recorders
 +
 +==== errors ====
 +
 +  fdisk -l /dev/sdb
 +  Warning: Device /dev/sdb has a logical sector size of 2048.  Not all parts of
 +  GNU Parted support this at the moment, and the working code is HIGHLY
 +EXPERIMENTAL.
 +  Error: Can't have a partition outside the disk!            
 +
 +
 +  usb 2-1: reset full speed USB device using ohci_hcd and address 2
 +  sd 1:0:0:0: [sdb] Result: hostbyte=0x05 driverbyte=0x00
 +  end_request: I/O error, dev sdb, sector 1340816
 +  usb 2-1: reset full speed USB device using ohci_hcd and address 2
 +  sd 1:0:0:0: [sdb] Result: hostbyte=0x05 driverbyte=0x00
 +  end_request: I/O error, dev sdb, sector 724
 +  FAT: Directory bread(block 120) failed
 +  usb 2-1: reset full speed USB device using ohci_hcd and address 2
 +  FAT: Filesystem panic (dev sdb1)
 +  invalid access to FAT (entry 0x0000fe6e)
 +  File system has been set read-only
 +
 +@feedback: https://bugs.launchpad.net/ubuntu/+bug/231664
 +
 +
 +===== OBSOLETE ======
 +
 +==== sector ====
 +
 +  fdisk /dev/sdb
 +  Warning: Device /dev/sdb has a logical sector size of 2048.
 +  ...
 +  Error: Can't have a partition outside the disk!   
 +
 +
 +  syslinux: only 512-byte sectors are supported
 +http://ubuntu-utah.ubuntuforums.org/showthread.php?p=6153852#post6153852
 +
 +@see: [[syslinux]]
 +
 +
 +=== hardware ===
 +
 +  * http://www.archoslounge.net/Test-Archos-3-l-audio-et-video,8995.html
 +
 +
 +
 +====== MISC =====
 +
 +  * http://sourceforge.net/projects/csa/# LadspA
 +  * http://www.npr.org/blogs/alltechconsidered/2015/04/16/400178385/the-hidden-fm-radio-inside-your-pocket-and-why-you-cant-use-it/# RadiO
 +  * http://nextradioapp.com/whynotme/
 +  * http://freeradioonmyphone.org/take-action/
 +  * http://www.icrobotics.co.uk/wiki/index.php/Turning_the_Raspberry_Pi_Into_an_FM_Transmitter# EmiT RpI
 +  * https://www.reddit.com/r/ODroid/comments/2vjyd8/driving_a_ym2420_fm_synthesis_ic_with_odroid_c1/# AmLogic
 +  * https://github.com/ChristopheJacquet/PiFmRds# RdS
 +
 +
 +====== MORE ======
 +
 +@TaG: [[OGG]] [[MP3]] [[USB]] [[Samsung]] [[Sigmatel]] EmiT
 +
 +
 +<html>
 +<iframe width="560" height="315" src="//www.youtube-nocookie.com/embed/yw7Dz_Qt-Rs" frameborder="0" allowfullscreen></iframe>
 +</html>
 +
  
 
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