Speculators paid me about $700 for the use of my 4 5830s in the past few months. I'd be willing to throw some of that away on a similar project if only I thought I had the know-how.
Topic: Ultra-Low-Cost DIY FPGA Miner - 175MH/s @ $1/MH - page 12. (Read 125892 times)
The anticipation is palpable.
agreed.....too bad all of my funds went towards gpus, I will have to wait for a while even after they are ready.
Just a quick update - I've started work on a new multi-FPGA carrier design.
Time to stop messing around, and build something badass.
-rph
Time to stop messing around, and build something badass.
-rph
The anticipation is palpable.
Just a quick update - I've started work on a new multi-FPGA carrier design.
Time to stop messing around, and build something badass.
-rph
Time to stop messing around, and build something badass.
-rph
something bad ass we can buy!
Just a quick update - I've started work on a new multi-FPGA carrier design.
Time to stop messing around, and build something badass.
-rph
Time to stop messing around, and build something badass.
-rph
on the real, if you get this working and can package it in some way to ship and plug and mine I will buy 5 right away, and more in the future.
Got the carrier PCB!
http://bitcoinfpga.com/pix/s6fg484-carrier-1.jpg
It supports FPGA download & mining over micro-USB, with the on-board Cortex-M3.
No need for a $200 JTAG probe.
Most importantly.. it'll finally let me run the 6s150..
-rph
http://bitcoinfpga.com/pix/s6fg484-carrier-1.jpg
It supports FPGA download & mining over micro-USB, with the on-board Cortex-M3.
No need for a $200 JTAG probe.
Most importantly.. it'll finally let me run the 6s150..
-rph
Man that looks awesome; I have been following this thread from the first post. I am researching everything I can about building some of these myself. I am majoring in Computer Programming, unfortunately I am still in Gen Ed classes and haven't got to the good stuff yet. You are my Mr. Miyagi rph!
Got the carrier PCB!
It supports FPGA download & mining over micro-USB, with the on-board ARM Cortex-M3.
No need for a $200 JTAG probe.
If all goes well it'll be running the 6s150 in a couple days.
And then The Cluster begins.
-rph
It supports FPGA download & mining over micro-USB, with the on-board ARM Cortex-M3.
No need for a $200 JTAG probe.
If all goes well it'll be running the 6s150 in a couple days.
And then The Cluster begins.
-rph
Reading this.
My code is full-custom VHDL, based on some good ideas in the ztex Verilog (which might or might not be
a derived work of the fpgaminer code, which is probably derived from some random guy's C code, etc).
I made enhancements for 2 cycles per SHA256 stage, and major changes to efficiently roll the core,
on smaller devices such as 6s25.
TBH I'm undecided on releasing full source. But ArtForz, ztex, and I have publically discussed the 6s150
optimizations in the ztex thread, and I released a snippet showing my changes for 2-cycles-per-stage,
so the concepts + optimization strategies are already public.
-rph
a derived work of the fpgaminer code, which is probably derived from some random guy's C code, etc).
I made enhancements for 2 cycles per SHA256 stage, and major changes to efficiently roll the core,
on smaller devices such as 6s25.
TBH I'm undecided on releasing full source. But ArtForz, ztex, and I have publically discussed the 6s150
optimizations in the ztex thread, and I released a snippet showing my changes for 2-cycles-per-stage,
so the concepts + optimization strategies are already public.
-rph
Got the 6s25 miner working! 11.25MH/s @ 180MHz
Wow, that is an amazing clock rate. I understand that your code is based on the ztex miner with some changes to go from 128Mhz to 156Mhz+... any chance you'll release your changes? I know you aren't required to...
Yeah, crazy, but it really works.
-rph
-rph
Keep in mind that sales prices for fully assembled/tested boards will be ~$100
over the raw BOM costs. For a 100 FPGA cluster, that is like $10k..
Assuming things go well, that $20 skillet is going to save me a lot of money.
-rph
over the raw BOM costs. For a 100 FPGA cluster, that is like $10k..
Assuming things go well, that $20 skillet is going to save me a lot of money.
-rph
hell yea I would buy a load of these. I'm pretty good at soldering my self and probably make some extra $$ reselling premade ones.
I'm up to 19.5MH/s in 6s25 -2, after working on it over the weekend.
It's mining for btcguild right now, drawing around 1W.
My 6s150 design meets timing at 156MH/s in 6s150 -3, and should easily
overclock to 175MH/s (1MH/$ at Avnet qty1 pricing). Might even reach 200MH/s
assuming the boards/ power supplies/cooling can handle that and keep it cool..
That would really reduce the gap b/t FPGAs and ATI GPUs.
Stay tuned..
-rph
It's mining for btcguild right now, drawing around 1W.
My 6s150 design meets timing at 156MH/s in 6s150 -3, and should easily
overclock to 175MH/s (1MH/$ at Avnet qty1 pricing). Might even reach 200MH/s
assuming the boards/ power supplies/cooling can handle that and keep it cool..
That would really reduce the gap b/t FPGAs and ATI GPUs.
Stay tuned..
-rph
If you are getting 11MH/s on a 6s25, what is that going to scale up to on a 6s150?
Wanted a video 
but that works just as well very impressed can't wait to see the 150 model running and hopefully buy some
but that works just as well very impressed can't wait to see the 150 model running and hopefully buy some
It's been making money with the GPL'd mpbm code from TheSeven:
-rph
-rph
Got the 6s25 miner working! 11.25MH/s @ 180MHz using 35% of the device.
Not exactly fast, but it validates the SW and MCU<->FPGA interface in preparation for the 6s150.
-rph
Not exactly fast, but it validates the SW and MCU<->FPGA interface in preparation for the 6s150.
-rph
Could you make a quick screen recording of that?
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