kramble / fpga-blakecoin-miner Goto Github PK

All Ztex links are down (error 404). Can you upload bitstream for Ztex 1.15x fpga, please?

Hello Kramble. I am looking for someone to do some developing for a FPGA project for MaxCoin. I was told by the MAX devs that MAX is forked from Blakecoin and that you are a particularly talented programmer that might be able to help us out. Is there a way I can contact you privately about this issue without me posting my email? Thank you for your time.

Bitstream https://www.dropbox.com/s/bbevqb8792emll9/CM1-hv-v04a-175MHz-ucf-150-fmax-161.bit

contained in the CM1 Readme.txt is 404 not found.

Please can you update with a recent link.

There are 2 patches to cgminer of different versions.
They conflict to each other.
One patch to cgminer 3.1.1
FPGA-Blakecoin-Miner/cgminer/cgminer-3.1.1/driver-icarus.c says

`/* Blakecoin detection hash
N.B. golden_ob MUST take less time to calculate than the timeout set in icarus_open()
0000007002685447273026edebf62cf5e17454f35cc7b1f2da57caeb008cf4fb00000000dad683f2975c7e00a8088275099c69a3c589916aaa9c7c2501d136c1bf78422d5256fbaa1c01d9d1b48b4600000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000
{ midstate, data } = { 256'h553bf521cf6f816d21b2e3c660f29469f8b6ae935291176ef5dda6fe442ca6e4, 96'hd1d9011caafb56522d4278bf };
*/
const char golden_ob[] =
"553bf521cf6f816d21b2e3c660f29469"
"f8b6ae935291176ef5dda6fe442ca6e4"
"00000000000000000000000000000000"
"00000000d1d9011caafb56522d4278bf";

const char golden_nonce[] = "00468bb4";
const uint32_t golden_nonce_val = 0x00468bb4;

`
Another patch is for 3.4.3
FPGA-Blakecoin-Miner/cgminer/cgminer-3.4.3/driver-icarus.c

` /* Blakecoin detection hash
N.B. golden_ob MUST take less time to calculate than the timeout set in icarus_open()
0000007002685447273026edebf62cf5e17454f35cc7b1f2da57caeb008cf4fb00000000dad683f2975c7e00a8088275099c69a3c589916aaa9c7c2501d136c1bf78422d5256fbaa1c01d9d1b48b4600000000800000000000000000000000000000000000000000000000000000000000000000000000000000000080020000
{ midstate, data } = { 256'h553bf521cf6f816d21b2e3c660f29469f8b6ae935291176ef5dda6fe442ca6e4, 96'hd1d9011caafb56522d4278bf };
*/
const char golden_ob[] =
"553bf521cf6f816d21b2e3c660f29469"
"f8b6ae935291176ef5dda6fe442ca6e4"
"00000000000000000000000000000000"
"00000000d1d9011caafb56522d4278bf";

const char golden_nonce[] = "000187a2";
const uint32_t golden_nonce_val = 0x000187a2;`

So SAME data in icarus detection code BUT DIFFERENT NONCES!!!!!!!
Which one is correct? Not clear.

MOST AWFUL that when those data are inserted into verilog testbench then board does not detect nonce!

LX150-Unrolled/test_blakeminer.v
Has a line for tested task
reg [415:0] data = 416'h000007ffffbd9207ffff001e11f35052d554469e3171e6831d493f45254964259bc31bade1b5bb1ae3c327bc54073d19f0ea633b;

And this task works properly in simulator ().
Also same line is used to set data directly into
FPGA-Blakecoin-Miner/experimental/LX150-Unrolled/serial.v

``ifdef SIM // Sane data for simulation - NB disable if simulating serial data loading
assign target = input_copy[415:384]; // Not needed since no RxD_data_ready strobe to load targetreg
assign data1 = 256'h3171e6831d493f45254964259bc31bade1b5bb1ae3c327bc54073d19f0ea633b; // midstate
assign data2 = 128'hffbd9207ffff001e11f35052d554469e; // NB ffbd9207 is loaded into nonce
// assign data2 = 128'hffbd9206ffff001e11f35052d554469e; // Test using prior nonce ffbd9206
else

BUT when midstate and data from cgminer C source inserted into testmench then simulator shows that board is not detected - NONCE NOT FOUND..

When midstate and data taken from generated FPGA-Blakecoin-Miner/MiningSoftware/testblakeminer.py
data - THEN verilog simulator shows that NONCE is FOUND properly.