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Re: [ANN][DCR] Decred - Hybrid PoW/PoS | btcsuite Devs | Tons of New Features | Go
by
sprocket_fpga
on 20/03/2016, 12:14:32 UTC
I would doubt ztex fpgas are the source of any sort of spike in hash rate.  They only perform at the hash rate of a smaller gpu.
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Re: [ANN][DCR] Decred - Hybrid PoW/PoS | btcsuite Devs | Tons of New Features | Go
by
sprocket_fpga
on 20/03/2016, 01:38:50 UTC
Quote from: evanjdevs on March 20, 2016, 01:26:23 AM
Nice job; I've been debating on whether or not to get my hands on some FPGA boards rather than GPUs but I'm not sure what some of the best choices are nowadays (considering Spartan-6 chips are a bit dated). Any suggestions like maybe the artix-7s?

I agree that the Spartan-6 chips are outdated.  That was actually why I created the bitstream.   I was hoping to find other devs that wanted to collaborate to push the Spartan-6 further and breath a little more life into these ztex boards.  I didn't find any so I just decided to post what I had.  The newer chips/boards are certainly better, but I'm not sure anyone is creating bitstreams for them.  Maybe you can lead the way :-)
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Re: [ANN][DCR] Decred - Hybrid PoW/PoS | btcsuite Devs | Tons of New Features | Go
by
sprocket_fpga
on 20/03/2016, 01:12:22 UTC
I created a bitstream for the ZTEX 1.15y board and want to share it with the decred community.  If you have a ZTEX 1.15y board, you should be able to mine DCR using this modified cgminer and bitstream.

I have put the bitstream at the following link.  It gets about 800Mh/s.

    https://www.dropbox.com/s/j1d12ixhfthj0y7/ztex_ufm1_15y1.bit?dl=0

The cgminer is located at the following link:

    https://github.com/sprocket-fpga/cgminer_3.7.2_ztex

Below are the steps I used to modify Decred cgminer 0.0.5 to run on my Raspberry Pi.

    1) sudo apt-get update
    2) sudo apt-get install libusb-1.0-0-dev libusb-1.0-0 libcurl4-openssl-dev libncurses5-dev libudev-dev screen libtool automake pkg-config libjansson-dev
    3) git clone https://github.com/decred/cgminer
    4) cd cgminer
    5) sudo ./autogen.sh
    6) sudo ./configure --disable-adl --enable-icarus
    7) copy .c and .h files to cgminer directory
    8 ) copy .bit to cgminer\bitstreams
    9) sudo make
    10) Command Line: cgminer --disable-gpu --blake256 -o < url:port > -u < username > -p < password > --ztex-clock 100:100

Note: This miner only works on Getwork pools. It does not have the Stratum logic incorporated yet.

Open Issue: This miner seems to work fine for up to 4 ztex boards. More than 4 boards is causing the cgminer to crash after 10 minutes.  If you have any ideas how to fix this issue, please PM me.

-----------------------------------------------------------------------------------------------

If you find this miner useful, please feel free to leave a tip:

  BTC: 14QcqFWZ9Y1j1aUHeUNySoMr4t9ZWJYt2a
  DCR: Dsj6WcnPYDPxDr99pQkTKeFsfh55KBJS2jY