anybody did a sb3100!!!

SB4XXX,SBV4XXX.
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nunny
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Post by nunny »

i got the chip from ebay y already pasted the link above and how to build it is in anothere link above here is the link to the boards http://www.radioshack.com/product/index ... age=search or http://www.radioshack.com/product/index ... age=search in my opinion the fist one is better but that one wasnt available at my local radioshack so i got the second one and it workes i used 4 capacitor 10uf in one and in the other i used 4 1uf capacitors becasue the instructions in the link thet i posted they use 4 10uf 50v and in chapter 21 of tcniso book they use 4 at 1uf 50v so donload the pdf that i posted to check the schematis at both max232 and max233 the max233 doesnt use any capacitor so it will be cheaper but i dont know were to get that chip
usbbdm
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Post by usbbdm »

I believe that J7 is 20pin EJTAG but after I connect to it I can not read IDCODE. Do not know why.
jackmode
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Post by jackmode »

dont know did you try messing around with j5 j6 and j2 they all might work together each set at a certin port
usbbdm
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Post by usbbdm »

jackmode wrote:dont know did you try messing around with j5 j6 and j2 they all might work together each set at a certin port
The EJTAG 1.5 and 2.0 spec matches the J7. (Both number of pins and size) J6 looks like a JTAG but I will not consider it is JTAG for the CPU. J2 is JTAG to program Xilinx chip.
jackmode
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Post by jackmode »

o ok see what you can do if nothin can be done i just make me a serial
GTF696
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Post by GTF696 »

after figuring out the 4200 and 5100, I'd kinda like to get a 3100 up and running to. I have a few of these, and know people have them just hanging around every where. Bring them back to good use.

I have this file:
SB3100-3.2.17-SGMPRV3.hex

and saw that there might me this one out there:
SB3100-3.2.17-SCM00-NOSH-1.0HACKWARE.hex.bin

And I just got:
SB3100-3.2.17-SCM00-NOSH-1.0.hex

from skEwb, one of the guys at fibercoax.

Maybe they are all the same file? maybe not... but it'll be cool to beable to work on any surfboard. And if I'm right, it won't matter as far as speed is concerned.
GTF696
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Post by GTF696 »

BOO! found out why the guy wanted to get ride of this 3100, the upload is stuck at fequency -1...

Maybe he tried to use the tools to mod it through eithernet aready and fubared it. Anyone else have a modem stuck on -1 frequency? I've never seen it even use a -1.


and it has pins soldered on the board already at location R289. every time i put the jtag on it, it stalls and resets when I take it off.

seems to have the same type of intel fash chip. can't be to much differnt then a 4200 can it?
jackmode
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Post by jackmode »

nope just want to mess around with them and sell on ebay premodified i
got a serial rs232 plug but havent tried it on my sb3100s becuse you half to do some fine sodering
GTF696
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Post by GTF696 »

If I can program the modem with out soldering on the RS-232 board that would be the best option. It's just one more thing to screw with, and for me it's not worth the effort. If you need the firmware though, PM me your email address and I will send you what I got.
GTF696
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Post by GTF696 »

usbbdm, is there any hope to get the JTag working on a 3100 or should I just through it away?

I just want to play with it, so I don't care either way.
bkholy
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Post by bkholy »

i know this thread is kind of old, but, Usbbdm, were you ever successfull at getting USBJTAG to work with SB3100. Let me know, I have one laying around and I would like to get it going.

Thanks,

BK
usbbdm
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Post by usbbdm »

No. I have not played with it. I am not sure it uses the standard EJTAG. Just not time to play with it.
I will start working on DCH 70 and DCH 3416 boxes. Also will start soon the GUI app.
santino
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Post by santino »

I got some going with netboot and the tickling way. But seems to only work with some.
bkholy
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Post by bkholy »

Can you please explain the tickling way? Also, I wonder if it would work with Open Sesame, or not?
santino
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Post by santino »

1) Manually assign a 192.168.100.10 ip to the network card you want to use:
2) Connect your sb3100 using just the Ethernet cable and power.
3) Extract the files supplied in the kit to your desktop
4) Cut and paste the opt folder to your root drive which in my case was C:/
5) Run Netboot. This is now the important part so pay attention. Boot over Network will not work in our case (SB3100) so don't try.
6) All we need checked r Enable ftp server…always run and auto IP also check our path to the vxworks is showing:
7) If all is well we should see this picture if you do then proceed to next step /if not get it sorted.
8) Now the magic bit. a pin or a cocktail stick will do…on the back of the SB3100 u will see a small hole(just below ethernet plug) this is a reset button….what we need to do here is trick the modem a little.
9) This parts all about timing and it may take a few trys. My method was to use the old 123 delay and it works for me.
10) So here we go. With your netboot running and SB3100 connected…press,123,press,press and then wait a sec, if you got the timing right you will see this:
11) You may now close netboot as we don't need it anymore/Temporary firmware is now in place 192.168.100.1/hack.html…….. now time to make it permanent
12) Follow the 3 steps here and wait for at least 5 mins and let it do its thing, during this time the modem will reset and your new firmware will be permanent.
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