[DIY] - Reward $100 | Antminer S1/S3 Blade on Raspberry Pi - page 2.

adib

sr. member

Activity: 368

Merit: 250

Quote from: pinhead666 on August 25, 2015, 04:54:58 PM

I made pcb for my adapter project.It's not well designed but what the hell,it works.I'm waiting right 20 pin connectors from Germany.It can be connected with S3 cables even now.
http://kuvapilvi.fi/k/y3ev.jpg

I know ill prove myself to be lasy but can you give us the BOM(value of each component) in the pcb and the schematic.
What happened to the 33k resistor problem? or was it the transitors.

Thanks.

pinhead666

sr. member

Activity: 265

Merit: 250

I made pcb for my adapter project.It's not well designed but what the hell,it works.I'm waiting right 20 pin connectors from Germany.It can be connected with S3 cables even now.
http://kuvapilvi.fi/k/y3ev.jpg

pinhead666

sr. member

Activity: 265

Merit: 250

Quote from: Mineit on August 20, 2015, 06:43:54 AM

Yes sorry meant transistors. Alright ill try to get it work with 2 blades thanks!
If i get it right im gonna start to make a fine pcb with connectors. Im getting crazy of all this mess! Shocked

Just remember that you have +12V connected only from one blade. If both (S3 20pin) connectors are provided with 12V and cables attached but only other blade is powered with psu,you'll end up burning something.But that is quite obvious.

HerbPean

legendary

Activity: 1638

Merit: 1005

Quote from: bmoscato on August 22, 2015, 09:24:49 PM

What happened to the guys that were building boards? Did we settle on using the CP2102 adapters?

he's busy with other project... he had one prototype running.

bmoscato

sr. member

Activity: 361

Merit: 267

What happened to the guys that were building boards? Did we settle on using the CP2102 adapters?

adib

sr. member

Activity: 368

Merit: 250

Quote from: Mineit on August 20, 2015, 06:43:54 AM

Yes sorry meant transistors. Alright ill try to get it work with 2 blades thanks!
If i get it right im gonna start to make a fine pcb with connectors. Im getting crazy of all this mess! Shocked

About my try to repair my S3+ blades:

After i took the whole thing apart again i found the oscillators on the S3+ blades, which i first thought there weren't any on it.

I had an old, still working S1 miner. First i checked how the oscillators responded with an oscilloscope and they where working fine as expected.
Then i checked my S3+ blades and they where dead indeed. No signals, no voltage, nothing.
The donated oscillator works after replacing it on the S3+ blades, again i checked it with an oscilloscope. It gets it voltage and signals on all sides again.

But STILL no signal on the RX. The TX still around 1.8v

So there's got to be something else that is fried and i cant find out what it is. Im about to give up on it now.

If you look closely you will see that there are two places where you can put those oscillators, i wanted to try to move the osc from the side to tha middle of the blades(i have seen blades with ocs in the middle).
I dont have a controller or the components to build one anymore.
You should try that.

You also have to desolder some very small resitors and condensors surrounding the original osc and move them toghter with the new placed osc as those components are also missing and i belive they are needed for the new placed osc to function.

Let me know how it goes.

Mineit

member

Activity: 74

Merit: 10

Yes sorry meant transistors. Alright ill try to get it work with 2 blades thanks!
If i get it right im gonna start to make a fine pcb with connectors. Im getting crazy of all this mess! Shocked

About my try to repair my S3+ blades:

After i took the whole thing apart again i found the oscillators on the S3+ blades, which i first thought there weren't any on it.

I had an old, still working S1 miner. First i checked how the oscillators responded with an oscilloscope and they where working fine as expected.
Then i checked my S3+ blades and they where dead indeed. No signals, no voltage, nothing.
The donated oscillator works after replacing it on the S3+ blades, again i checked it with an oscilloscope. It gets it voltage and signals on all sides again.

But STILL no signal on the RX. The TX still around 1.8v

So there's got to be something else that is fried and i cant find out what it is. Im about to give up on it now.

pinhead666

sr. member

Activity: 265

Merit: 250

If by "mosfet" you mean transistors t1 and t2 so yes you need separate lines for each blade.Same regs but 4 trannys and 2 resistor voltage dividers for two blades.Every tx and rx line must be separated,otherwise you get signals mixed and that's not so good.
About oscillators: If you have old S1 blades you can salvage it from there.

Mineit

member

Activity: 74

Merit: 10

right, like i thought they only work separately. That why u got 2 more mosfets on your new version right? To control 2 blades?

Mineit

member

Activity: 74

Merit: 10

Ill try to solder it rq, i prepared the cables already. ill post my results

Mineit

member

Activity: 74

Merit: 10

The board is the same as your 'corrected scheme' that u removed.

Yeah i saw that about the dead blades but mine doesn't have oscillators on it. So i cant try that

Edit

Found the oscillators on the blades, i need to order the replacements first before i can try it

pinhead666

sr. member

Activity: 265

Merit: 250

Do you mean to use same regulators for two controller? I think they should handle that. Could you please clarify how is your T1 connected now? And about dead blades there's been talk about dead oscillators. I think "somebody said somewhere" that he had replaced one and got the blade running again. Or it might have been S1 blade but they are so similar that I would try replacing it anyway.It's pretty easy to solder if you have hot air solder station.

Mineit

member

Activity: 74

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Thank you too mate!

Well then i guess the S3+ blades died sadly, but i still wont give up lol. There's got to be something there, ill check it later.

EDIT

I wanted to solder my second connector, but to think of it. Do i need to add another mosfet curcuit or can i just add it to the same group?

pinhead666

sr. member

Activity: 265

Merit: 250

I also came to conclusion that those resistors are the reason.I used other values in first prototype than my second one.I was gonna try 100k trimmer there but I will remove them and watch what will happen.Thank you mate! I don't know about s3+ blades 'cause don't have any.I try to buy one to play with. But I remember that when I had S3+ and S3's, I mixed controllers and blades and they did work.I had one with s3 controller driving 1 s3+ blade and 1 s3 blade.

Mineit

member

Activity: 74

Merit: 10

Your new schematic sended me in the right direction!

After i saw that u changed the 33k resistor location. I found out that there where some loose connection and that is why it worked only for a little while when i just builded it. it worked when the 33k resistor where loose but when it makes contact it didnt work. So after changing that it where all running fine, even on my BM1117.

Then i ran into some other problem. I thought it where running on S3+ blades but they where just normal S3 Blades. When i connect the prototype to the S3+ blades they wont do anything. Even a original controlboard ( S3 versions) wont work. The blade only gives values on the TX, the RX ones dont do anything Huh

Are my S3+ blades dead Cry

Other that that the prototype works! i just connected the fan wires and they all work fine.

Ill let it hash over the night and see how it goes.

I only have one question though, maybe someone knows it... Does a S3 Controller work on S3+ Blades? Else its 100% sure that the blades died with the controller when it where fried.

pinhead666

sr. member

Activity: 265

Merit: 250

Now I wonder if I have killed that blade.I removed link to my schematic.I will try with original S3 controller and see if the blade still works.But 'cause I don't have cables it will be painfull solder job again.
Edit: Good news is that board works still with original controller. I might take a break,do other things and then re-think this thing.I have ordered bi-directional level shifters from ebay,but I think it'll be maybe two weeks or so when they arrive.

pinhead666

sr. member

Activity: 265

Merit: 250

There is problem with transistor driver.Disconnect pin 3 from controller(s) and blades should be recognised. When I connect pin 3 on the fly,blade starts hashing but quite quickly dies. You can measure pin 14,which should be 1V8 when blade is recognised.It drops little over 1V when it's not working.And controller pin 3 is little over 2V when it should be 3V3. I have this problem too with my second adapter. First one worked so long with no problems.I'll have to connect it again and see if it still works.I used little different value resistors connected from t1 to ground.And different transistors.But I have to sleep sometimes,so I'll be back later.

Mineit

member

Activity: 74

Merit: 10

3.3v from the blade is also 3.34/3.35 so i think thats good

Mineit

member

Activity: 74

Merit: 10

My 3.3V reports 3.34 with my multimeter and my 1.8v is between 1.79 and 1.8v

I have the same problem as u, no connection between controller and the blade.

pinhead666

sr. member

Activity: 265

Merit: 250

Now I'm pretty sure there is problem with 3V3 regulator. My prototype board worked well over 12 hours but my second version reported 16 blades with 1 chip each when I woke up this morning! Prototype board has better heat-sink for 3V3 regulator. L1117 should handle that drop from 3V3 to 1V8 but my version is D-PAK2 so it would be better to use TO-220 version which would be easier to cool. Right now I'm gonna feed 3V3 from lab-power supply and leave it on for next night to confirm my conclusions.

Edit: It doesn't work with external 3V3. Voltages are good but no communication between controller and blades. I sadly don't have logic analyser so I'm only guessing here.Too much interference from external psu? I replaced heatsink with bigger-one and it works right away.Now I leave it on and do other things.I'll check in the evening if it's still working.

Topic: [DIY] - Reward $100 | Antminer S1/S3 Blade on Raspberry Pi - page 2. (Read 82114 times)