Topic: First GENUE LTC FPGA - page 2. (Read 3361 times)

for those who know nothing about chip design, First FPGA, then to hard silicon. FPGA allows you to work the bugs out of your design before you dump 25K to have it masked in silicon.
2nd off, Scrypt is completely possible to build an ASIC for. math is what computers do best. Scrypt just requires some external ram. big deal. ram is cheap. I dont doubt the authenticity of this. there are a couple other people working on fpga scrypt machines. They just arent posting their work here for kudos and warm pats on the back.

unless it is a asic device, it wont be a game changer

Twas not me, meaning John K most likely locked your original thread. *Wonders...*

Boy howdy...this could be a game changer if legit

it look very ugly, when complete can you give better look?

Hi,
I just got my old thread locked, showing a fpga hashing at 22 Khs, lol. Bord can do really more..
 https://vimeo.com/m/74955720

I'm considering going on reddit with full story!

Nah r3wt that's not how I am.

Nice that at least we've come to an agreement.

Indeed, let's see what he says.

Post the source to test_miner.py, since all it is is a mining client and would not release any confidential information. If it shows legitimate USB or serial port interfacing code of some sort then I'll believe you.

import usb.core
import usb.util
import time
from threading import Thread, Event, RLock
import sys
import re
import struct

# find our device
dev = usb.core.find(idVendor=0x1234, idProduct=0x1010)

# was it found?
if dev is None:
    raise ValueError('Device not found')

# set the active configuration. With no arguments, the first
# configuration will be the active one
dev.set_configuration()

run_app = 1

def get_time_str():
   lt = time.localtime(time.time())
   return "%d:%d:%d" %(lt.tm_hour, lt.tm_min, lt.tm_sec)

#######################################################################################      
#######################################################################################      
class   EP2_listener(Thread):
   def   __init__(self):
      Thread.__init__(self)
      self.count = [0, 0]
      self.starttime = time.time()
      self.daemon = True
   def run(self):
      global run_app
      print "[%s]EP2_listener started" % get_time_str()
      while run_app:
         ret = ''
         try:
            ret = dev.read(0x82, 64, 0, 100)
            log_msg = ''.join([chr(x) for x in ret])
            sys.stdout.write(log_msg)
         except Exception as e:
            pass      
         if len(ret) == 0:
            time.sleep(0.01)

############ startez thread #########
listener = EP2_listener()            
listener.start()
#####################################

def wr_dev_ok_err(msg):

   try:
      dev.write(1, msg, 0, 3100)
      tick = time.time()   
      while time.time() < tick + 1.0:
         try:
            ret = dev.read(0x81, 64, 0, 3100)
            retbuf = ''.join([chr(x) for x in ret])
            if re.search("OK", retbuf):
               print retbuf
               return 1
            if re.search("ERR", retbuf):
               print retbuf
               return -1
            if re.search("BUSY", retbuf):
               print retbuf
               return -2
            print "retbuf="+retbuf
         except Exception as e:
            print e
            pass
   except Exception as e:
      print e
      pass
   return 0


def get_ok():
   tick = time.time()   
   while time.time() < tick + 1.0:
      try:
         ret = dev.read(0x81, 256, 0, 3100)
         retbuf = ''.join([chr(x) for x in ret])
         if re.search("OK", retbuf):
            print "got OK:" + retbuf
            return 1
         if re.search("ERR", retbuf):
            print retbuf
            return -1
         if re.search("BUSY", retbuf):
            print retbuf
            return -2
         print "retbuf="+retbuf
      except Exception as e:
         print e
         pass
   

def wr_dev(msg):

   try:
      dev.write(1, msg, 0, 3100)
      tick = time.time()   
      while time.time() < tick + 1.0:
         try:
            ret = dev.read(0x81, 64, 0, 3100)
            retbuf = ''.join([chr(x) for x in ret])
            if len(retbuf):
               #print "retbuf="+retbuf
               return retbuf
         except Exception as e:
            #print e
            pass
   except Exception as e:
      #print e
      pass
   return 0   

def ask_op(op):
   wr_dev("Z7X,00000000%02x"% (op &0xff))
   retcode = wr_dev("Z7X,0100000200")
   return retcode
   
def memvar_dump(ram_off, len, name):

   wr_dev("Z7X,%08lx05" % ram_off)
   
   ar = []
   for j in xrange(len):
      retcode = ask_op(0x07)
      val = 0
      try:
         val = int(retcode, 16)
      except:
         pass
      ar.append(val)
   return ar   
tick = time.time()
run_once = 1
time.sleep(0.5)
print "GET_ID=%s" % ask_op(1)


########################################################
#### dll result ####
########################################################
#######################################################################################      
#######################################################################################      

def uint32(x):
   return x & 0xffffffffL

def bytereverse(x):
   return uint32(( ((x) << 24) | (((x) << & 0x00ff0000) |
         (((x) >> & 0x0000ff00) | ((x) >> 24) ))

def bufreverse(in_buf):
   out_words = []
   for i in range(0, len(in_buf), 4):
      word = struct.unpack('@I', in_buf[i:i+4])[0]
      out_words.append(struct.pack('@I', bytereverse(word)))
   return ''.join(out_words)

#######################################################################################      
host = "127.0.0.1"
http_port = 8337
#host = "mine.pool-x.eu"
#http_port = 8337
#host = "pool1.us.multipool.us"
#http_port = 17777
host = "mining.eu.hypernova.pw"
http_port = 9332
host = "pooledbits.com"
http_port = 8332
user = "xxxx"
password = "x"
#######################################################################################      



import json
import base64

from ctypes import cdll, byref
lib = cdll.LoadLibrary('./scrypt.dll')
#print lib
import ctypes
class Scrypt(object):
   def __init__(self):
      #self.obj = lib.say_hello()
      none = 0
   def scanhash(self, pdata, ptarget, max_nonce, c_long_last_nonce, n):
      return lib.scanhash_scrypt(pdata, ptarget, max_nonce, c_long_last_nonce, n)


scr = Scrypt()
long_polling_path = ''

import time

while 1:
   #try:
   if 1:
      #print "getwork->con_init()"
      import httplib
      conn = httplib.HTTPConnection(host, http_port, True, 10)
      #print "getwork->con_established"
      
      req = json.dumps({"method": "getwork", "params": [], "id": 'json'})
      auth = "Basic " + base64.b64encode(user+ ":" + password)
      headers = {"User-Agent": "lt_miner", "Content-type": "application/json", "Content-Length": len(req), "Authorization": auth}
      #print "getwork->req_sent"
      conn.request("POST", '/', req, headers)
      #print "getwork->req_answered"
      http_response = conn.getresponse()
      buf = http_response.read()
      #print "http_response=%s" % buf
      response = json.loads(buf)
      #print "getwork->got_data"
      if response["error"] != None:
         print "error [%s]" % response["error"]
         sys.exit(1)
      if response["result"]:
            #print("getwork() ok\n")
            work = response['result']   
            #print work
            if long_polling_path == '':
               headers = http_response.getheaders()                                 
               for (key,val) in headers:
                  if key == "x-long-polling":
                     long_polling_path = val
            if long_polling_path != '':
               do_long_poll = True
               
            ######################################################
            stime = time.time()
            last_nonce = ctypes.c_long(0)
            #n = 0
            #data = work['data'].decode('hex')
            data_orig = work['data']
            data_pt_c = work['data'].decode('hex')
            #target = work['target'].decode('hex')
            target_pt_c = work['target'].decode('hex')
            target = work['target']
            #print "data_orig=%s" % data_orig
            #print "target(full, bytereversed)=%s" % target
            print "data=%s." % data_orig[:73]
            # sys.exit(1)
            #res = scr.scanhash(data, target, 0xffff, byref(last_nonce), n )
            
            
            ######################################################
            target_short = 0xffffffff
            if len(target) > 8:
               #target_short = bufreverse(target[56:].decode('hex'))
               target_short = bytereverse(int(target[56:], 16)) ^ 0xffffffff
            target_short = 0xffff0000   #wired diff 1
            #print "target(bit_complemented)=%08lx" % target_short
            data = data_orig.decode('hex')
            data = bufreverse(data)
            #print data.encode('hex')
            
            ram_off = 4262
            wr_dev("Z7X,%08lx05" % ram_off)
            for i in xrange(19):
               word = struct.unpack('@I', data[i*4:i*4+4])[0]
               wr_dev("Z7X,%08lx06" % word)
            wr_dev("Z7X,0000000006")   #### nonce
            wr_dev("Z7X,0000ffff06")   #### range
            wr_dev("Z7X,%08lx06" % target_short)
            wr_dev("Z7X,000000000e")   
            start = time.time()
            tick = time.time() + 1.0
            while 1:
               time.sleep(0.1)
               retcode = wr_dev("Z7X,0000000000")
               if re.search("515151", retcode):
                  time.sleep(0.01)
               else:
                  retcode = wr_dev("Z7X,0000000000")
                  if not re.search("515151", retcode):
                     time.sleep(0.01)
                     delta_time = (time.time() - start) * 1000
                     print "Scanhash took %d ms" % (delta_time),
                     rram = memvar_dump(4281, 1, "nonce")
                     print "/ Approximate speed = %.2f kHash" %((float(rram[0])) / (delta_time))
                     break
               if time.time() > tick:
                  tick = time.time() + 1.0
                  print ".",

            rram = memvar_dump(4281, 1, "nonce")
            nonce = rram[0]
            res = 0
            if nonce < 0x10000:
               res = 1
            ###########################################################################
            nonce_str = "%08lx" %(nonce & 0xffffffff)
            data_new = data_orig[:156] + nonce_str[4:] + data_orig[160:]
            n = nonce - 1   
            res2 = scr.scanhash(data_pt_c, target_pt_c, nonce + 1, byref(last_nonce), n )
            if res != 0 and res2 != 0:
               f = open("succ.txt", "a")
               f.write("----NEW BLOCK----\n")
               f.write("data_orig:\n%s\n" % data_orig)
               f.write("data_new:\n%s\n" % data_new)
               f.write("nonce=%08lx\n" % nonce)
               try:
                  sconn = httplib.HTTPConnection(host, http_port, True, 10)
                  req = json.dumps({"method": "getwork", "params": [data_new], "id": 0})
                  auth = "Basic " + base64.b64encode(user+ ":" + password)
                  headers = {"User-Agent": "lt_miner", "Content-type": "application/json", "Content-Length": len(req), "Authorization": auth}
                  sconn.request("POST", '/', req, headers)
                  response = json.loads(sconn.getresponse().read())
                  if response["error"] != None:
                     print ("Server reported error: %s\n" % response["error"])
                     f.write("Server reported error: %s\n" % response["error"]);
                     time.sleep(1.0)
                  if response["result"]:
                     print "%04x accepted"  % (nonce)
                     f.write("accepted nonce=%04x %s\n"  % (nonce, response["result"]));
                  else:
                     f.write("rejected share [%s]\n" % response["result"]);
                     
               except Exception as e:
                  print("Error while uploading share e=%s\n" % e)
                  f.write("Error while uploading share e=%s\n" % e);
                  time.sleep(1.0)            
               f.write("----END BLOCK----\n\n")
               f.close()

   # except Exception as e:
      # print e
      # sys.exit(1)
   time.sleep(1.0)

How can you know that test_miner.py isn't just a script full of echo commands with a time.sleep in between? Or hell, even a CPU miner, which is more or less correct as to what the speed you'd get would be.

Just look at the text output when the script was given a ^C.



Suspicious.

Post the source to test_miner.py, since all it is is a mining client and would not release any confidential information. If it shows legitimate USB or serial port interfacing code of some sort then I'll believe you.

its funny you should mention it as well. if  you watched the video it becomes obvious in about 15 fucking seconds that this is real

I find it highly suspicious that someone with such a terrible trust rating is defending this guy. :/

are you stupid? he's talking dollar khash ratio. he wasn't talking about a 1 dollar, complete unit. get off of your horse.