Galaxy Tab Serial Cable
- Thread starter Technomancer
- Start date
I've been waiting since saturday to get mine back, good luck
Have you got any other information on your "My Samsung" account besides the registered device? i was told it would refresh so i could track the return and request for repair. I literally have no paper work on this besides a shipping label and a ID # that the samsung rep game me on the phone during the call i got the shipping label from. This seems fishy like something was missed in the proses and its now in limbo. I did everything they asked. so i'm not sure whats going on.
Lucky, my closest one that serviced mobile devices was 18 hours away. Well we wait. I wonder who gets theres first lol
I just finished compiling a kernel and getting the smartass module working perfect on the the tab with a full table support to change its throttling and ramping values via sysfs
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There are lots of 3rd party boxes that can read,write s5pc110 like i9000 , p1000,and repair boot through jtag. So i doubt that samsung tech wouldnt do it quick
There are lots of 3rd party boxes that can read,write s5pc110 like i9000 , p1000,and repair boot through jtag. So i doubt that samsung tech wouldnt do it quick
I wrote that after I was informed that the logic board was being replaced,
Well,maybe that type of informing customers is their policy, who knows. Or maybe your board really was defective. Just wanted to point it out.
yeah my board was really defective, I spoke to the tech about it, they do try use the anyway jig where possible but it is not always possible if something else is wrong (say a few bad blocks in movinand)
Tab should be here by 3!
It was like pulling teeth to get an update on it though, As you know i live in Canada, we're bilingual. So the service center was a French speaking one. Every time i called Samsung Canada they were unable to give me an update, the tech finally told me its because they don't speak French and were unable to understand the service center reps who they were calling for an update.
So I called the service center my self after the Samsung rep finally gave me the name and number
What a joke...
Anyways i know for a fact that my board was not defective, i bricked it, they did not jtag it they replaced the logic board she said.
It was like pulling teeth to get an update on it though, As you know i live in Canada, we're bilingual. So the service center was a French speaking one. Every time i called Samsung Canada they were unable to give me an update, the tech finally told me its because they don't speak French and were unable to understand the service center reps who they were calling for an update.
So I called the service center my self after the Samsung rep finally gave me the name and number
What a joke...
Anyways i know for a fact that my board was not defective, i bricked it, they did not jtag it they replaced the logic board she said.
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It should work but you will probably need root priviledges.
In Froyo kernel you should see it as /dev/s3c2410_serial2
In Gingerbread kernel it should be visiable as /dev/ttyFIQ0
try echo PDA > /sys/devices/virtual/sec/uart_switch/UART_SEL/value
[edit]
actually it is
echo PDA > /sys/class/sec/switch/uart_sel
you can also cat it to see if uart is set to pda or modem
[edit]
actually it is
echo PDA > /sys/class/sec/switch/uart_sel
you can also cat it to see if uart is set to pda or modem
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15Hi guys
I have been investigating making serial cable for Tab for debugging and logging.
There is serial port wired to 30 pin connector.
Here is the pinout for the connector (copied from Wikipedia, unfortunately some asshole deleted it from Wikipedia several days ago)
The serial port is connected to ttySAC2 (port 2, 0 based)Code:Pin Signal to/from device 1 Gnd P 2 Gnd P 3 USB_DP_CON I/O 4 USB_DM_CON I/O 5 IF_CON_SENSE I 6 V_ACCESSORY_5.0V P 7 V_BUS_1 P 8 V_BUS_1 P 9 VOUT_CHARGER P 10 VOUT_CHARGER P 11 --- -- 12 --- -- 13 ACCESSORY_ID / USB_ID I 14 ACCESSORY_INT I 15 Gnd P 16 Gnd P 17 MHL_DP I/O 18 MHL_DM I/O 19 MHL_ID I 20 IF_RXD I 21 IF_TXD O 22 --- -- 23 AP_TV_OUT O 24 REMOTE_SENSE I 25 --- -- 26 --- -- 27 EAR_L_CRADLE O 28 EAR_R_CRADLE O 29 3.5_INT_TEST I 30 Gnd P
So we need:
USB to low power serial adapter (repurposed knockoff Nokia DKU-5 cable)
Galaxy Tab USB cable.
Soldering skills and magnifying glass.
Brass balls.
We disassemble the Tab USB cable. There are several blades in the connector. We have to remove 2 blades with USB power and 2 blades for USB D+ D-.
Then we cut the Nokia connector off DKU-5 cable and figure out which wires are GND, TXD and RXD.
In case of my cable with ARK3116 red - GND, grn - RXD, wht - TXD
In case of my cable with PL2303 blu - GND, wht - RXD, ylo - TXD
We want to connect GND to GND, and RXD to pin 21 and TXD to pin 20
This is a good article on hacking DKU-5 cables http://www.neolics.com/pdfs/dku-5.pdf
So now we can solder the GND, TXD and RXD to proper blades on 30 pin connector and insert TXD and RXD blades into slots 20,21 on the connector.
I also tried using 200K trimmer set to 150K ohm between ACCESSORY_ID and GND but I am not sure whether it is the right solution.
Here are some photos:
And some output from bootloader: http://pastie.org/1712603
And in download mode http://pastie.org/1721484
This is the table of resistances from kernel in arch/arm/mach-s5pv210/include/mach/fsa9480_i2c.h
Code:typedef enum { RID_USB_OTG_MODE, /* 0 0 0 0 0 GND USB OTG Mode */ RID_AUD_SEND_END_BTN, /* 0 0 0 0 1 2K Audio Send_End Button*/ RID_AUD_REMOTE_S1_BTN, /* 0 0 0 1 0 2.604K Audio Remote S1 Button */ RID_AUD_REMOTE_S2_BTN, /* 0 0 0 1 1 3.208K Audio Remote S2 Button */ RID_AUD_REMOTE_S3_BTN, /* 0 0 1 0 0 4.014K Audio Remote S3 Button */ RID_AUD_REMOTE_S4_BTN, /* 0 0 1 0 1 4.82K Audio Remote S4 Button */ RID_AUD_REMOTE_S5_BTN, /* 0 0 1 1 0 6.03K Audio Remote S5 Button */ RID_AUD_REMOTE_S6_BTN, /* 0 0 1 1 1 8.03K Audio Remote S6 Button */ RID_AUD_REMOTE_S7_BTN, /* 0 1 0 0 0 10.03K Audio Remote S7 Button */ RID_AUD_REMOTE_S8_BTN, /* 0 1 0 0 1 12.03K Audio Remote S8 Button */ RID_AUD_REMOTE_S9_BTN, /* 0 1 0 1 0 14.46K Audio Remote S9 Button */ RID_AUD_REMOTE_S10_BTN, /* 0 1 0 1 1 17.26K Audio Remote S10 Button */ RID_AUD_REMOTE_S11_BTN, /* 0 1 1 0 0 20.5K Audio Remote S11 Button */ RID_AUD_REMOTE_S12_BTN, /* 0 1 1 0 1 24.07K Audio Remote S12 Button */ RID_RESERVED_1, /* 0 1 1 1 0 28.7K Reserved Accessory #1 */ RID_RESERVED_2, /* 0 1 1 1 1 34K Reserved Accessory #2 */ RID_RESERVED_3, /* 1 0 0 0 0 40.2K Reserved Accessory #3 */ RID_RESERVED_4, /* 1 0 0 0 1 49.9K Reserved Accessory #4 */ RID_RESERVED_5, /* 1 0 0 1 0 64.9K Reserved Accessory #5 */ RID_AUD_DEV_TY_2, /* 1 0 0 1 1 80.07K Audio Device Type 2 */ RID_PHONE_PWD_DEV, /* 1 0 1 0 0 102K Phone Powered Device */ RID_TTY_CONVERTER, /* 1 0 1 0 1 121K TTY Converter */ RID_UART_CABLE, /* 1 0 1 1 0 150K UART Cable */ RID_CEA936A_TY_1, /* 1 0 1 1 1 200K CEA936A Type-1 Charger(1) */ RID_FM_BOOT_OFF_USB, /* 1 1 0 0 0 255K Factory Mode Boot OFF-USB */ RID_FM_BOOT_ON_USB, /* 1 1 0 0 1 301K Factory Mode Boot ON-USB */ RID_AUD_VDO_CABLE, /* 1 1 0 1 0 365K Audio/Video Cable */ RID_CEA936A_TY_2, /* 1 1 0 1 1 442K CEA936A Type-2 Charger(1) */ RID_FM_BOOT_OFF_UART, /* 1 1 1 0 0 523K Factory Mode Boot OFF-UART */ RID_FM_BOOT_ON_UART, /* 1 1 1 0 1 619K Factory Mode Boot ON-UART */ RID_AUD_DEV_TY_1_REMOTE, /* 1 1 1 1 0 1000.07K Audio Device Type 1 with Remote(1) */ RID_AUD_DEV_TY_1_SEND = RID_AUD_DEV_TY_1_REMOTE , /* 1 1 1 1 0 1002K Audio Device Type 1 / Only Send-End(2) */ RID_USB_MODE, /* 1 1 1 1 1 Open USB Mode, Dedicated Charger or Accessory Detach */ RID_MAX }FSA9480_RID_ENUM_TYPE;
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