+#!/usr/bin/env python
+
+#GoodFET I2C EEPROM Client
+#by Travis Goodspeed
+
+import sys;
+import binascii;
+import array;
+
+from GoodFET import GoodFET;
+from intelhex import IntelHex;
+
+if(len(sys.argv)==1):
+ print "Usage: %s verb [objects]\n" % sys.argv[0];
+ print "%s info" % sys.argv[0];
+ print "%s dump $foo.hex [0x$start 0x$stop]" % sys.argv[0];
+ print "%s erase" % sys.argv[0];
+ print "%s write $foo.hex [0x$start 0x$stop]" % sys.argv[0];
+ print "%s verify $foo.hex [0x$start 0x$stop]" % sys.argv[0];
+ print "%s peek 0x$start [0x$stop]" % sys.argv[0];
+ print "%s poke 0x$adr 0x$val" % sys.argv[0];
+ sys.exit();
+
+#Initailize FET and set baud rate
+client=GoodFET();
+client.serInit()
+
+
+client.I2Csetup();
+
+#Dummy read.
+#Might read as all ones if chip has a startup delay.
+#client.SPIjedec();
+
+if(sys.argv[1]=="foo"):
+ client.I2Cstart();
+
+ # Write AA55 at 0x00
+ #print "%i" % client.I2Cwrite([0xA0, 0x00, 0x00, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55]);
+ client.I2Cstop();
+
+ client.I2Cstart();
+ print "%i" % client.I2Cwrite([0xA0, 0x00, 0x00]); # Set ADR=0x00
+ client.I2Cstart();#restart
+ print "%i" % client.I2Cwrite([0xA1]); # Set ADR=0x00
+ data=client.I2Cread(128);
+ s="";
+ for d in data:
+ s+="%02x " % ord(d);
+ print s
+ client.I2Cstop();
+
+
+if(sys.argv[1]=="test"):
+ result="";
+ dropped=0;
+ for i in range(40):
+ data=client.SPIjedec();
+ if ord(data[1])==0xFF:
+ result+="-";
+ dropped=dropped+1;
+ else:
+ result+="+";
+ print "Connection Test: (- is bad)\n%s" % result;
+ print "%i misreads" % dropped;
+ if(dropped==40):
+ print "No successful reads. Is the chip wired correctly?";
+ elif(dropped>0):
+ print "Some success, some failures. Is a wire loose?";
+ else:
+ print "All reads succeeded. Wiring is probably good.";
+
+if(sys.argv[1]=="info"):
+ data=client.SPIjedec();
+ print "Ident as %s\nManufacturer: %02x %s\nType: %02x\nCapacity: %02x" % (
+ client.SPIjedecstr(),
+ ord(data[1]),client.SPIjedecmanstr(),
+ ord(data[2]),
+ ord(data[3]));
+
+if(sys.argv[1]=="dump"):
+ f = sys.argv[2];
+ start=0x0000;
+ stop=0x100000; #TODO, adjust this by the JEDEC size parameter.
+ if(len(sys.argv)>3):
+ start=int(sys.argv[3],16);
+ if(len(sys.argv)>4):
+ stop=int(sys.argv[4],16);
+
+ print "Dumping code from %06x to %06x as %s." % (start,stop,f);
+ file = open(f, mode='wb')
+
+ i=start;
+ while i<=stop:
+ data=client.SPIpeekblock(i);
+ if(i%0x1000==0):
+ print "Dumped %06x."%i;
+ for j in data:
+ file.write(j);
+ i+=1;
+ file.close()
+if(sys.argv[1]=="flash"):
+ f = sys.argv[2];
+ start=0x0000;
+ stop=0x100000; #TODO, adjust this by the JEDEC size parameter.
+ if(len(sys.argv)>3):
+ start=int(sys.argv[3],16);
+ if(len(sys.argv)>4):
+ stop=int(sys.argv[4],16);
+
+ print "Flashing code from %06x to %06x with %s." % (start,stop,f);
+ file = open(f, mode='rb')
+
+ i=start;
+ chars=list(file.read());
+ chunksize=0x80;
+
+ while i<=stop:
+ bytes=range(0,chunksize);
+ for j in range(0,chunksize):
+ bytes[j]=ord(chars[i+j]);
+ #client.SPIpokebyte(i,ord(chars[i]));
+ client.SPIpokebytes(i,bytes);
+
+ i+=chunksize;
+ if(i%0x100==0):
+ print "Flashed %06x."%i;
+ file.close()
+
+
+if(sys.argv[1]=="erase"):
+ client.SPIchiperase();
+
+if(sys.argv[1]=="peek"):
+ start=0x0000;
+ if(len(sys.argv)>2):
+ start=int(sys.argv[2],16);
+ stop=start;
+ if(len(sys.argv)>3):
+ stop=int(sys.argv[3],16);
+ print "Peeking from %06x to %06x." % (start,stop);
+ while start<=stop:
+ print "%06x: %02x" % (start,client.SPIpeek(start));
+ start=start+1;
+
+if(sys.argv[1]=="poke"):
+ start=0x0000;
+ val=0x00;
+ if(len(sys.argv)>2):
+ start=int(sys.argv[2],16);
+ if(len(sys.argv)>3):
+ val=int(sys.argv[3],16);
+ print "Poking %06x to become %02x." % (start,val);
+
+ while client.SPIpeek(start)!=val:
+ client.SPIpokebyte(start,val);
+ print "Poked to %02x" % client.SPIpeek(start);
+
projects / goodfet / commitdiff