import sys;
import binascii;
+import array;
from GoodFET import GoodFET;
from intelhex import IntelHex;
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')
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;
+ bytes=file.read();
+ while i<=stop:
+ client.SPIpokebyte(i,ord(bytes[i]));
+
+ i+=1;
+ if(i%0x100==0):
+ print "Flashed %06x."%i;
+ file.close()
+
+
if(sys.argv[1]=="erase"):
client.SPIchiperase();
if(len(sys.argv)>3):
val=int(sys.argv[3],16);
print "Poking %06x to become %02x." % (start,val);
- client.SPIpokebyte(start,val);
-
+
+ while client.SPIpeek(start)!=val:
+ client.SPIpokebyte(start,val);
+ print "Poked to %02x" % client.SPIpeek(start);
//! Grab the SPI flash status byte.
unsigned char spiflash_status(){
unsigned char c;
+ P5OUT|=SS; //Raise !SS to end transaction.
P5OUT&=~SS; //Drop !SS to begin transaction.
spitrans8(0x05);//GET STATUS
c=spitrans8(0xFF);
unsigned char verb,
unsigned char len){
unsigned char i;
+
+
+ //Raise !SS to end transaction, just in case we forgot.
+ P5OUT|=SS;
+
switch(verb){
//PEEK and POKE might come later.
case READ:
len=0x80;//128 byte chunk
for(i=0;i<len;i++)
cmddata[i]=spitrans8(0);
- txdata(app,verb,len);
P5OUT|=SS; //Raise !SS to end transaction.
+ txdata(app,verb,len);
break;
case POKE://Poke up bytes from an SPI Flash ROM.
spiflash_setstatus(0x02);
//First three bytes are address, then data.
for(i=0;i<len;i++)
spitrans8(cmddata[i]);
- P5OUT&=~SS; //Drop !SS to begin transaction.
+ P5OUT|=SS; //Raise !SS to end transaction.
while(spiflash_status()&0x01);//while busy
- spiflash_wrten();
txdata(app,verb,len);
break;
case SPI_ERASE://Erase the SPI Flash ROM.
txdata(app,verb,0);
break;
}
+
}