iamnotdorian / open-source-fpga-bitcoin-miner

VHDL implementation of a Bitcoin Miner targeting Altera Stratix IV FPGAs.

Stratix IV FPGA Open-Source Bitcoin Miner

OrphanedGland ([email protected])
Send donations to : 1PioyqqFWXbKryxysGqoq5XAu9MTRANCEP

In this fork I have added two new SHA256 core implementations written in VHDL, along the option to vary the number of parallel SHA256 pairs.
The top level file is projects/VHDL_StratixIV_OrphanedGland/top/rtl/top.vhd.
The number of parallel SHA256 pairs is set via the NUM_CORES constant.

Two different types of SHA256 cores can be selected by setting the constant SHA256_SEL:

• SHA256_SEL = 0 => Pre-calculation of H+K+W used
• SHA256_SEL = 1 => Quasi-pipelining used

I have compiled the project with NUM_CORES = 4 and SHA256_SEL = 0 for the Stratix IV EP4SE530. Logic utilization is 68% and clock rate is 195MHz (Slow 900mV 85C Model). Total hash rate is given by the clock rate multiplied by the number of cores. The PLL should be adjusted to match the clock rate that can be achieved.

Note that this design has been simulated but not tested on hardware.

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Original readme below:

Terasic DE2-115 FPGA Open-Source Bitcoin Miner

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Copyright (C) 2011 [email protected]

See LICENSE.txt

Purpose

To promote the free and open development of an FPGA based Bitcoin mining solution.

http://www.weusecoins.com/

http://bitcoin.org/

Project Status

Project is fully functional and allows mining of Bitcoins both in a Pool and Solo. It also supports Namecoins.

Current Performance: 80 MHash/s

Note: The included default configuration file, and source files, are built for 50 MHash/s performance (downclocked). This is meant to prevent damage to your valuable chip if you don't provide an appropriate cooling solution.

Installation Instructions

Required Equipment:

• DE2-115 Development Kit (this is not a DE2. It has a Cyclone IV EP4CE115.)
• USB Cable
• Windows PC (Linux is also supported, but not documented)
• Altera's Quartus II (installed on PC)

###Instructions:

####Do These Once:

1. IMPORTANT: Please remove the clear acrylic cover on your DE2-115 board. This will restrict air flow and may cause the chip to overheat.

2. Navigate to 'scripts/mine' and EDIT 'mine.tcl' (open in Notepad or other text editor)

3. Locate the following lines:

   set url "http://btcguild.com:8332" set userpass "[email protected]:yourpasswordhere"

Edit accordingly (N.B. the script has only been tested with btcguild and deepbit so far).

4. Save and close 'mine.tcl'

####Do these each time you want to run the miner:

1. Connect the DE2-115 Development Kit to your PC through USB, connect its power, and turn it on.

2. Ensure that the DE2-115's drivers have been installed successfully on your PC. Consult the DE2-115 User Guide for more information on setting up the DE2-115.

3. Navigate to 'scripts/program' and run 'program-fpga-board.bat'.

4. Follow the instructions provided by the program-fpga-board script. Select the correct cable and programming file. Once programming has succeeded, the DE2-115 is now ready to mine!

Note: This script sometimes fails immediately upon execution. Please try running it again.

5. Run 'mine.bat'

6. If working correctly, 'mine.bat' will leave a console window open which will fill with diagnostic information as it runs.

7. Profit!

####Notes:

• You need to re-program the DE2-115 every time it is powered off and on again. Repeat steps 1 through 7 for subsequent uses.
• Your PC needs to stay on and connected to the internet. It is acting like a controller for the FPGA, feeding it data and getting back valid hashes.

Thank You!

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[email protected]
Donation Address: 1E1XgiJAzm1Wn7ZWuhkryzBoViBJ7CcRCQ

Donations are most welcome! They will be used to buy more equipment. I'm currently trying to get
an ethernet module up and running so the miner can run all on its own.
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