Previous Thread
Take a look at these 2 threads. Maybe it will help.
http://www.pogoplugged.com/forum/thread/12366/Pins-for-the-two-connectors-on-...
and
http://www.pogoplugged.com/forum/thread/11515/How-To-Find-mkfs-jffs2-and-othe...
I've bricked my V2 Pogoplug: I added a few lines early in /etc/init.d/rcS, failed to check them, and rebooted. No more Ethernet access (ssh, scp).
Perhaps I'm not alone in this situation?
I believe that my options all require that I establish a serial connection to the CON3 pins on the board. I also believe that this is a +3.3V interface, not RS232 levels - and I suspect that there's no buffering between the pins and the Marvell chip. So I don't want to experiment much, and risk permanent hardware damage.
Do I need a level shift circuit between these RX and TX pins and my PC's serial port? If so, can someone point me to a sample circuit?
Once I've got that, is it true that the port is running at 115 Kbps?
I've got a backup (rcS~). Can I use the U-Boot interface to fix the existing rcS, or rename the backup?
All suggestions are much welcome, thanks.
-- Lee
Lead Moderator
- member since: 04/21/2009
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March 8, 2010 2:08 PM
March 8, 2010 2:22 PM
Brandon, thanks, I had already read through those (and many others). I've got the connector; I've also got a real serial port on my PC, so I'm not trying to use USB. Near as I can tell, I must use a (3V) TTL-to-RS232 interface between the two - and I've got one of those, so I'll wire it up and try it.
-- Lee
Lead Moderator
- member since: 04/21/2009
- rank: 1 of 13225
- 18 articles authored
- 22 forum threads started
- 667 comments
March 8, 2010 7:55 PM
Would love to hear how it turns out. I have been using a USB serial console setup quite a bit with my routers that I tend to brick every so often. :) So I am familiar with it and some how-to's with the Pogoplug may come in handy.
March 9, 2010 5:14 PM
Unbrick'd! Once I established the serial port connection via the internal CON3 pins, it was trivial to move the bad rcS out of the way and replace it with its backup.
Not having done this before, it wasn't obvious to me that I'd get a shell prompt via this interface.
BUT, I found that the CON3 wiring is not as suggested in previous posts. It is, in fact, reversed from the silk-screened J2 on the V1 board. On the Pink version (V2), CON3's pins are +3.3V (at the end of the four pins adjacent to the CON3 silkscreen label), TxD (data from Pogoplug), RxD (data to Pogoplug), ground (the pin adjacent to the eight-pin connector). This is easily verified with a DVM; also note that the Ethernet connector's housing is ground.
I used an adapter to convert between these data pins (that idle / mark at +3.3V and space at 0V) and RS232. I have one that came with a Rabbit uC development kit; it uses a Sipex SP232 charge-pump-based interface chip that's intended to run at 5V but works fine with 3.3V.
-- Lee
June 20, 2010 9:20 AM
I brick'd and unbrick'd my PogpPlug V2 (pink) with the help of what Lee mentioned. The placement of the pins are correct.
I used the Nokia DKU-5 cable USB to Serial. The cable had only 3 wires (not too sure if it was a genuine cable :)) but it worked for me. I had the baud rate set at 115200 and got the shell. Restored the rcS with the backup and I was good to go.
The DKU-5 cable - notice the larger than normal USB end.
October 27, 2010 5:56 PM
i am trying to restore my /etc/init.d/rcS file, which i am able to connect to my V2 Pogoplug thru serial connection, but keep getting this msg at the end of boot:
[ 2.840000] md: ... autorun DONE.
[ 9.750000] VFS: Mounted root (jffs2 filesystem) readonly.
[ 9.750000] Freeing init memory: 120K
init started: BusyBox v1.7.0 (2008-02-26 19:25:17 IST)
starting pid 269, tty '': '/etc/init.d/rcS'
Cannot run '/etc/init.d/rcS': Permission denied
starting pid 270, tty '': '/bin/sh'
I tried this command and get:
-sh-3.2# mount -o rw,remount /
mount: cannot read /proc/mounts: No such file or directory
can anyone help?
here is a copy of my boot output:
SoC: Kirkwood 88F6281_A0
DRAM: 128 MiB
NAND: 128 MiB
In: serial
Out: serial
Err: serial
Net: egiga0
88E1116 Initialized on egiga0
Hit any key to stop autoboot: 0
(Re)start USB...
USB: Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 2 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
** Block device usb 0 not supported
** Block device usb 0 not supported
Wrong Image Format for bootm command
ERROR: can't get kernel image!
stopping USB..
### JFFS2 loading 'uboot-original-mtd0.kwb' to 0x800000
Scanning JFFS2 FS: .......... done.
### JFFS2 load complete: 524288 bytes loaded to 0x800000
## Starting application at 0x00800200 ...
U-Boot 1.1.4 (Jul 16 2009 - 21:02:16) Cloud Engines (3.4.16)
U-Boot code: 00600000 -> 0067FFF0 BSS: -> 00690D60
Soc: 88F6281 A0 (DDR2)
CPU running @ 1200Mhz L2 running @ 400Mhz
SysClock = 400Mhz , TClock = 200Mhz
DRAM CAS Latency = 5 tRP = 5 tRAS = 18 tRCD=6
DRAM CS[0] base 0x00000000 size 128MB
DRAM Total size 128MB 16bit width
Flash: 0 kB
Addresses 8M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (8M - 7M): Done
NAND:128 MB
CPU : Marvell Feroceon (Rev 1)
CLOUD ENGINES BOARD: PPV2
Streaming disabled
Write allocate disabled
USB 0: host mode
PEX 0: interface detected no Link.
Net: egiga0 [PRIME], egiga1
Hit any key to stop autoboot: 1
U-Boot 2010.06-00695-gbd23130-dirty (Aug 30 2010 - 23:04:56)
Marvell-Dockstar/Pogoplug by Jeff Doozan
SoC: Kirkwood 88F6281_A0
DRAM: 128 MiB
NAND: 128 MiB
In: serial
Out: serial
Err: serial
Net: egiga0
88E1116 Initialized on egiga0
Hit any key to stop autoboot: 0
(Re)start USB...
USB: Register 10011 NbrPorts 1
USB EHCI 1.00
scanning bus for devices... 2 USB Device(s) found
scanning bus for storage devices... 0 Storage Device(s) found
** Block device usb 0 not supported
** Block device usb 0 not supported
Wrong Image Format for bootm command
ERROR: can't get kernel image!
stopping USB..
### JFFS2 loading 'uboot-original-mtd0.kwb' to 0x800000
Scanning JFFS2 FS: ....... .. done.
DRAM CAS Latency = 5 tRP = 5 tRAS = 18 tRCD=6
DRAM CS[0] base 0x00000000 size 128MB
DRAM Total size 128MB 16bit width
Flash: 0 kB
Addresses 8M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (8M - 7M): Done
NAND:128 MB
CPU : Marvell Feroceon (Rev 1)
CLOUD ENGINES BOARD: PPV2
Streaming disabled
Write allocate disabled
USB 0: host mode
[ 1.110000] Creating 4 MTD partitions on "nand_mtd":
[ 1.120000] 0x00000000-0x00100000 : "u-boot"
[ 1.120000] 0x00100000-0x00500000 : "uImage"
[ 1.130000] 0x00500000-0x02500000 : "root"
[ 1.130000] 0x02500000-0x08000000 : "data"
[ 1.140000] ehci_marvell ehci_marvell.70059: Marvell Orion EHCI
[ 1.140000] ehci_marvell ehci_marvell.70059: new USB bus registered, assigned bus number 1
[ 1.180000] ehci_marvell ehci_marvell.70059: irq 19, io base 0xf1050100
[ 1.200000] ehci_marvell ehci_marvell.70059: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 1.200000] usb usb1: configuration #1 chosen from 1 choice
[ 1.210000] hub 1-0:1.0: USB hub found
[ 1.210000] hub 1-0:1.0: 1 port detected
[ 1.330000] USB Universal Host Controller Interface driver v3.0
[ 1.610000] usb 1-1: new high speed USB device using ehci_marvell and address 2
[ 1.760000] usb 1-1: configuration #1 chosen from 1 choice
[ 1.760000] hub 1-1:1.0: USB hub found
[ 1.770000] hub 1-1:1.0: 4 ports detected
[ 1.880000] usbcore: registered new interface driver usblp
[ 1.880000] drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
[ 1.890000] Initializing USB Mass Storage driver...
[ 1.890000] usbcore: registered new interface driver usb-storage
[ 1.900000] USB Mass Storage support registered.
[ 1.910000] mice: PS/2 mouse device common for all mice
[ 1.910000] i2c /dev entries driver
[ 1.910000] Linux telephony interface: v1.00
[ 1.920000] md: linear personality registered for level -1
[ 1.920000] md: raid0 personality registered for level 0
[ 1.930000] md: raid1 personality registered for level 1
[ 2.100000] raid6: int32x1 97 MB/s
[ 2.270000] raid6: int32x2 114 MB/s
[ 2.440000] raid6: int32x4 122 MB/s
[ 2.610000] raid6: int32x8 110 MB/s
[ 2.610000] raid6: using algorithm int32x4 (122 MB/s)
[ 2.610000] md: raid6 personality registered for level 6
[ 2.620000] md: raid5 personality registered for level 5
[ 2.620000] md: raid4 personality registered for level 4
[ 2.630000] raid5: measuring checksumming speed
[ 2.680000] arm4regs : 1084.000 MB/sec
[ 2.730000] 8regs : 754.800 MB/sec
[ 2.780000] 32regs : 899.600 MB/sec
[ 2.780000] raid5: using function: arm4regs (1084.000 MB/sec)
[ 2.790000] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
[ 2.790000] dm_crypt using the OCF package.
[ 2.800000] sdhci: Secure Digital Host Controller Interface driver
[ 2.800000] sdhci: Copyright(c) Pierre Ossman
[ 2.810000] usbcore: registered new interface driver usbhid
[ 2.810000] drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver
[ 2.820000] TCP cubic registered
[ 2.820000] NET: Registered protocol family 1
[ 2.830000] NET: Registered protocol family 17
[ 2.830000] md: Autodetecting RAID arrays.
[ 2.840000] md: autorun ...
[ 2.840000] md: ... autorun DONE.
[ 9.750000] VFS: Mounted root (jffs2 filesystem) readonly.
[ 9.750000] Freeing init memory: 120K
init started: BusyBox v1.7.0 (2008-02-26 19:25:17 IST)
starting pid 269, tty '': '/etc/init.d/rcS'
Cannot run '/etc/init.d/rcS': Permission denied
starting pid 270, tty '': '/bin/sh'
-sh-3.2#
October 28, 2010 4:54 PM
Thanks everyone.... but a hole lot of reading and thinking got me to solving this little situation
November 1, 2010 1:27 PM
hi all. I am having issues restoring my pink pogoplug. i have the cable built, and the serial connection made via putty. i can see the script show when i reboot the device. my question is how to i restore this thing back to factory? i can not find a proper guide here. can anyone tell me what i need to type to restore this device i bricked? here is the script that shows when it trys to reboot. let me know what i need to do to fix this thing.
----------------------------------------------------------
-sh-3.2# reboot
The system is going down NOW!
Sending SIGTERM to all processes
Requesting system reboot
[ 157.870000] md: stopping all md devices.
[ 158.870000] Restarting system.
[ 158.870000] Reseting !!
U-Boot 1.1.4 (Sep 28 2009 - 11:55:23) Cloud Engines v2.0 (3.4.16)
U-Boot code: 00600000 -> 0067FFF0 BSS: -> 00690D60
Soc: 88F6281 A0 (DDR2)
CPU running @ 1200Mhz L2 running @ 400Mhz
SysClock = 400Mhz , TClock = 200Mhz
DRAM CAS Latency = 5 tRP = 5 tRAS = 18 tRCD=6
DRAM CS[0] base 0x00000000 size 256MB
DRAM Total size 256MB 16bit width
Flash: 0 kB
Addresses 8M - 0M are saved for the U-Boot usage.
Mem malloc Initialization (8M - 7M): Done
NAND:128 MB
CPU : Marvell Feroceon (Rev 1)
CLOUD ENGINES BOARD: PPV2
Streaming disabled
Write allocate disabled
USB 0: host mode
PEX 0: interface detected no Link.
Net: egiga0 [PRIME], egiga1
Hit any key to stop autoboot: 0
NAND read: device 0 offset 0x100000, size 0x200000
Reading data from 0x2ff800 -- 100% complete.
2097152 bytes read: OK
## Booting image at 00800000 ...
Image Name: Linux-2.6.22.18
Created: 2009-08-10 19:57:40 UTC
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1977716 Bytes = 1.9 MB
Load Address: 00008000
Entry Point: 00008000
Verifying Checksum ... OK
OK
Starting kernel ...
Uncompressing Linux............................................................................................................................ done, booting the kernel.
[ 0.000000] Linux version 2.6.22.18 (bdietrich@brad-ux) (gcc version 4.2.1) #44 Mon Aug 10 12:57:36 PDT 2009
[ 0.000000] CPU: ARM926EJ-S [56251311] revision 1 (ARMv5TE), cr=00053177
[ 0.000000] Machine: Feroceon-KW
[ 0.000000] Using UBoot passing parameters structure
[ 0.000000] Memory policy: ECC disabled, Data cache writeback
[ 0.000000] CPU0: D VIVT write-back cache
[ 0.000000] CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
[ 0.000000] CPU0: D cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
[ 0.000000] Built 1 zonelists. Total pages: 65024
[ 0.000000] Kernel command line: console=ttyS0,115200 root=/dev/mtdblock2 ro
[ 0.000000] PID hash table entries: 1024 (order: 10, 4096 bytes)
[ 0.000000] Console: colour dummy device 80x30
[ 0.000000] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[ 0.000000] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[ 0.010000] Memory: 256MB 0MB 0MB 0MB = 256MB total
[ 0.010000] Memory: 255872KB available (3592K code, 252K data, 120K init)
[ 0.250000] Mount-cache hash table entries: 512
[ 0.250000] CPU: Testing write buffer coherency: ok
[ 0.250000] NET: Registered protocol family 16
[ 0.250000]
[ 0.250000] CPU Interface
[ 0.250000] -------------
[ 0.250000] SDRAM_CS0 ....base 00000000, size 256MB
[ 0.250000] SDRAM_CS1 ....disable
[ 0.250000] SDRAM_CS2 ....disable
[ 0.250000] SDRAM_CS3 ....disable
[ 0.250000] PEX0_MEM ....base e8000000, size 128MB
[ 0.250000] PEX0_IO ....base f2000000, size 1MB
[ 0.250000] INTER_REGS ....base f1000000, size 1MB
[ 0.250000] NFLASH_CS ....base fa000000, size 2MB
[ 0.250000] SPI_CS ....base f4000000, size 16MB
[ 0.250000] BOOT_ROM_CS ....no such
[ 0.250000] DEV_BOOTCS ....no such
[ 0.250000] CRYPT_ENG ....base f0000000, size 2MB
[ 0.250000]
[ 0.250000] Marvell Development Board (LSP Version KW_LSP_4.2.7_patch21)-- SHEEVA PLUG Soc: 88F6281 A0 LE
[ 0.250000]
[ 0.250000] Detected Tclk 200000000 and SysClk 400000000
[ 0.250000] MV Buttons Device Load
[ 0.250000] Marvell USB EHCI Host controller #0: c0650600
[ 0.750000] PEX0 interface detected no Link.
[ 0.750000] PCI: bus0: Fast back to back transfers enabled
[ 0.750000] SCSI subsystem initialized
[ 0.750000] usbcore: registered new interface driver usbfs
[ 0.750000] usbcore: registered new interface driver hub
[ 0.750000] usbcore: registered new device driver usb
[ 0.750000] NET: Registered protocol family 2
[ 0.760000] Time: kw_clocksource clocksource has been installed.
[ 0.850000] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[ 0.850000] TCP established hash table entries: 8192 (order: 4, 65536 bytes)
[ 0.850000] TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
[ 0.850000] TCP: Hash tables configured (established 8192 bind 8192)
[ 0.850000] TCP reno registered
[ 0.880000] RTC has been updated!!!
[ 0.880000] RTC registered
[ 0.880000] Use the XOR engines (acceleration) for enhancing the following functions:
[ 0.880000] o RAID 5 Xor calculation
[ 0.880000] o kernel memcpy
[ 0.880000] o kenrel memzero
[ 0.880000] Number of XOR engines to use: 4
[ 0.880000] cesadev_init(c00116b4)
[ 0.880000] mvCesaInit: sessions=640, queue=64, pSram=f0000000
[ 0.880000] MV Buttons Driver Load
[ 0.880000] squashfs: version 3.3 (2007/10/31) Phillip Lougher
[ 0.880000] squashfs: LZMA suppport for slax.org by jro
[ 0.880000] JFFS2 version 2.2. (NAND) é 2001-2006 Red Hat, Inc.
[ 0.880000] io scheduler noop registered
[ 0.880000] io scheduler anticipatory registered (default)
[ 0.900000] Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
[ 0.900000] serial8250.0: ttyS0 at MMIO 0xf1012000 (irq = 33) is a 16550A
[ 0.910000] serial8250.0: ttyS1 at MMIO 0xf1012100 (irq = 34) is a 16550A
[ 0.920000] RAMDISK driver initialized: 16 RAM disks of 16384K size 1024 blocksize
[ 0.930000] Loading Marvell Ethernet Driver:
[ 0.940000] o Cached descriptors in DRAM
[ 0.940000] o DRAM SW cache-coherency
[ 0.940000] o Single RX Queue support - ETH_DEF_RXQ=0
[ 0.950000] o Single TX Queue support - ETH_DEF_TXQ=0
[ 0.950000] o TCP segmentation offload enabled
[ 0.960000] o Receive checksum offload enabled
[ 0.960000] o Transmit checksum offload enabled
[ 0.970000] o Network Fast Processing (Routing) supported
[ 0.970000] o Driver ERROR statistics enabled
[ 0.980000] o Driver INFO statistics enabled
[ 0.980000] o Proc tool API enabled
[ 0.990000] o Rx descripors: q0=128
[ 0.990000] o Tx descripors: q0=532
[ 0.990000] o Loading network interface(s):
[ 1.000000] o eth0, ifindex = 1, GbE port = 0
[ 1.010000] o eth1, ifindex = 2, GbE port = 1
[ 1.010000]
[ 1.010000] mvFpRuleDb (cf8c2000): 2048 entries, 8192 bytes
[ 1.020000] Intel(R) PRO/1000 Network Driver - version 7.3.20-k2-NAPI
[ 1.030000] Copyright (c) 1999-2006 Intel Corporation.
[ 1.030000] e100: Intel(R) PRO/100 Network Driver, 3.5.17-k4-NAPI
[ 1.040000] e100: Copyright(c) 1999-2006 Intel Corporation
[ 1.040000]
[ 1.040000] Warning Sata is Powered Off
[ 1.050000] NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c $Revision: 1.41 $
[ 1.060000] NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
[ 1.070000] Scanning device for bad blocks
[ 1.070000] Bad eraseblock 49 at 0x00620000
[ 1.100000] Bad eraseblock 562 at 0x04640000
[ 1.110000] Bad eraseblock 619 at 0x04d60000
[ 1.120000] Bad eraseblock 754 at 0x05e40000
[ 1.120000] Bad eraseblock 791 at 0x062e0000
[ 1.140000] Using static partition definition
[ 1.140000] Creating 4 MTD partitions on "nand_mtd":
[ 1.150000] 0x00000000-0x00100000 : "u-boot"
[ 1.150000] 0x00100000-0x00500000 : "uImage"
[ 1.160000] 0x00500000-0x02500000 : "root"
[ 1.160000] 0x02500000-0x08000000 : "data"
[ 1.170000] ehci_marvell ehci_marvell.70059: Marvell Orion EHCI
[ 1.170000] ehci_marvell ehci_marvell.70059: new USB bus registered, assigned bus number 1
[ 1.210000] ehci_marvell ehci_marvell.70059: irq 19, io base 0xf1050100
[ 1.230000] ehci_marvell ehci_marvell.70059: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[ 1.230000] usb usb1: configuration #1 chosen from 1 choice
[ 1.240000] hub 1-0:1.0: USB hub found
[ 1.240000] hub 1-0:1.0: 1 port detected
[ 1.360000] USB Universal Host Controller Interface driver v3.0
[ 1.640000] usb 1-1: new high speed USB device using ehci_marvell and address 2
[ 1.790000] usb 1-1: configuration #1 chosen from 1 choice
[ 1.790000] hub 1-1:1.0: USB hub found
[ 1.800000] hub 1-1:1.0: 4 ports detected
[ 2.150000] usb 1-1.3: new high speed USB device using ehci_marvell and address 3
[ 2.250000] usb 1-1.3: configuration #1 chosen from 1 choice
[ 2.260000] usbcore: registered new interface driver usblp
[ 2.260000] drivers/usb/class/usblp.c: v0.13: USB Printer Device Class driver
[ 2.270000] Initializing USB Mass Storage driver...
[ 2.270000] scsi0 : SCSI emulation for USB Mass Storage devices
[ 2.280000] usbcore: registered new interface driver usb-storage
[ 2.290000] USB Mass Storage support registered.
[ 2.290000] mice: PS/2 mouse device common for all mice
[ 2.300000] i2c /dev entries driver
[ 2.300000] Linux telephony interface: v1.00
[ 2.300000] md: linear personality registered for level -1
[ 2.310000] md: raid0 personality registered for level 0
[ 2.320000] md: raid1 personality registered for level 1
[ 2.490000] raid6: int32x1 97 MB/s
[ 2.660000] raid6: int32x2 114 MB/s
[ 2.830000] raid6: int32x4 122 MB/s
[ 3.000000] raid6: int32x8 110 MB/s
[ 3.000000] raid6: using algorithm int32x4 (122 MB/s)
[ 3.000000] md: raid6 personality registered for level 6
[ 3.010000] md: raid5 personality registered for level 5
[ 3.010000] md: raid4 personality registered for level 4
[ 3.020000] raid5: measuring checksumming speed
[ 3.070000] arm4regs : 1084.000 MB/sec
[ 3.120000] 8regs : 754.800 MB/sec
[ 3.170000] 32regs : 890.400 MB/sec
[ 3.170000] raid5: using function: arm4regs (1084.000 MB/sec)
[ 3.180000] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
[ 3.180000] dm_crypt using the OCF package.
[ 3.190000] sdhci: Secure Digital Host Controller Interface driver
[ 3.190000] sdhci: Copyright(c) Pierre Ossman
[ 3.200000] usbcore: registered new interface driver usbhid
[ 3.200000] drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver
[ 3.210000] TCP cubic registered
[ 3.210000] NET: Registered protocol family 1
[ 3.220000] NET: Registered protocol family 17
[ 3.220000] md: Autodetecting RAID arrays.
[ 3.230000] md: autorun ...
[ 3.230000] md: ... autorun DONE.
[ 4.560000] Empty flash at 0x009cc208 ends at 0x009cc800
[ 7.240000] VFS: Mounted root (jffs2 filesystem) readonly.
[ 7.250000] Freeing init memory: 120K
[ 7.300000] scsi 0:0:0:0: Direct-Access Kingston DataTraveler 2.0 PMAP PQ: 0 ANSI: 0 CCS
[ 8.010000] sd 0:0:0:0: [sda] 2015232 512-byte hardware sectors (1032 MB)
[ 8.040000] sd 0:0:0:0: [sda] Write Protect is off
[ 8.040000] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 8.090000] sd 0:0:0:0: [sda] 2015232 512-byte hardware sectors (1032 MB)
[ 8.100000] sd 0:0:0:0: [sda] Write Protect is off
[ 8.100000] sd 0:0:0:0: [sda] Assuming drive cache: write through
[ 8.110000] sda: sda1
[ 8.180000] sd 0:0:0:0: [sda] Attached SCSI removable disk
[ 8.180000] sd 0:0:0:0: Attached scsi generic sg0 type 0
init started: BusyBox v1.7.0 (2008-02-26 19:25:17 IST)
starting pid 285, tty '': '/etc/init.d/rcS'
mount: mounting /dev/sda1 on /new_root failed: Invalid argument
/etc/init.d/rcS: line 41: syntax error: unexpected end of file
starting pid 288, tty '': '/bin/sh'
-sh-3.2#
----------------------------------------------------------
----------------------------------------------------------
April 11, 2011 6:56 AM
Hi,
Is someone has made a serial cable from real serial PC port to CON3 Pogo port?
Actually, I can't find a schematic view of that.
There is only photo of CON3 connector and USB to serial convertor but nothing about a connection between PC serial port (included the used pins) and the CON3.
Regards.
April 11, 2011 12:30 PM
To make a connection from your PC serial port, which runs are 5V vis 3.3V, you'll need a step-down.
Any appropriate schematic to convert from RS232 +5V to RS-232 +3.3V should suffice.
As always **TEST** before plugging into the lower voltage device!
April 13, 2011 6:58 AM
Ok, thanks for the answer.
The only chip i could find are RS23S to TTL and 3.3V logic.
Is there a simple way to step-down the voltage (like a voltage division) from the PC serial port to the CON3 connector? a schematic view of the RS232 pin assignation with the correspondance to the CON3 ones will be appreciated ;-)
regards
April 13, 2011 7:44 AM
updated: April 13, 2011 7:44 AM
Look for anything that has a PL2303 chip in it, or a FTDI model of the same type.
They come really cheap, especially via CA-42 cable from Nokia (found all over the net/amazon/ebay)
** edit, those work as USB..
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