Difference between revisions of "Add a Serial port to the LS MINI"

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m (New page: Apparently there are two traces that have been interrupted which would allow serial port access. These traces have been interrupted UNDER a SMD capacitor at position C54. Yamasita discov...)
 
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Apparently there are two traces that have been interrupted which would allow serial port access.
 
Apparently there are two traces that have been interrupted which would allow serial port access.
  
These traces have been interrupted UNDER a SMD capacitor at position C54.  Yamasita discovered the way first<ref>[http://www.yamasita.jp/linkstation/2008/08/080831__patches_for_serial_console.html シリアルコンソールのためのパッチ / patches for serial console:LS-WSGL/R1 ]<ref>
+
These traces have been interrupted UNDER a SMD capacitor at position C54.  Yamasita discovered the way first<ref>[http://www.yamasita.jp/linkstation/2008/08/080831__patches_for_serial_console.html シリアルコンソールのためのパッチ / patches for serial console:LS-WSGL/R1 ]</ref>
  
http://buffalo.nas-central.org/forums/viewtopic.php?f=61&t=10471
 
  
 
LaitrKeiows and johnbock duplicated his efforts<ref>[http://buffalo.nas-central.org/forums/viewtopic.php?f=61&t=10471  
 
LaitrKeiows and johnbock duplicated his efforts<ref>[http://buffalo.nas-central.org/forums/viewtopic.php?f=61&t=10471  

Revision as of 00:56, 8 September 2008

Apparently there are two traces that have been interrupted which would allow serial port access.

These traces have been interrupted UNDER a SMD capacitor at position C54. Yamasita discovered the way first[1]


LaitrKeiows and johnbock duplicated his efforts[2]


Contents

C54

The traces are visible under c54

Method 1: reconstruct the traces (on the backside)

LSMINI-Serialport-before.jpg LSMINI-Serialport-after.jpg

Method 2: Bridge the traces (on the frontside)

LSMINI-Serialport-c54.jpg 200px

Pinout of Port

Serial Port Output

Orion1   CPU =  Low

> Checking hardware info ...
=== Strap status : 0x00802030 ===
=== H/W boardId  :       0x33 ===
=== boardId      :       0x1a ===
=== micon_support:        off ===
> OK.
=== BUFFALO LS-WSGL/R1 U-Boot. ===
** LOADER **
** BUFFALO BOARD: BUFFALO_BOARD_LS_WSGL/R1 LE (CFG_ENV_ADDR=fffff000)


U-Boot 1.1.1 (Feb 22 2008 - 18:48:54) Marvell version: 1.12.1 - TINY
Buffalo Version: 1.13-1.00

DRAM CS[0] base 0x00000000   size 128MB
DRAM Total size 128MB
[256kB@fffc0000] Flash: 256 kB
Addresses 20M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (20M - 16M): Done

Soc: 88F5182 A2
CPU: ARM926 (Rev 0) running @ 400Mhz
Orion 1 streaming disabled
SysClock = 200Mhz , TClock = 166Mhz


USB 0: host mode
PCI 0: PCI Express Root Complex Interface
PCI 1: Conventional PCI, speed = 33000000
Net:   egiga0 [PRIME]
Using 88E1118 phy
buffalo_change_power_status > Read 0x3a
buffalo_IsStopAtUbootStatus > MagicKey=0x3a
buffalo_change_power_status > Read 0x3a
buffalo_change_power_status > Read 0x3a
buffalo_change_power_status > Writing 0x5c

Please Press HDD power button to continue ...
buffalo_change_power_status > Read 0x5c
buffalo_change_power_status > Writing 0x3a

Marvell Serial ATA Adapter
Integrated Sata device found

HDD is not found 

References

  1. シリアルコンソールのためのパッチ / patches for serial console:LS-WSGL/R1
  2. [http://buffalo.nas-central.org/forums/viewtopic.php?f=61&t=10471 The Buffalo NAS hacking Forums:Serial access possible? YES!