class GoodFET:
def __init__(self, *args, **kargs):
- print "inited\n";
self.data=[0];
def timeout(self):
print "timout\n";
if(self.verb!=0x7F):
print "Verb is wrong. Incorrect firmware?";
-
def writecmd(self, app, verb, count, data):
"""Write a command and some data to the GoodFET."""
self.serialport.write(chr(app));
self.data=[address&0xff,address>>8,value];
self.writecmd(0,0x03,3,self.data);
return ord(self.data[0]);
-
+ def setBaud(self,baud):
+ rates=[9600, 9600, 19200, 38400];
+ self.data=[baud];
+ print "Changing baud."
+ self.serialport.write(chr(0x00));
+ self.serialport.write(chr(0x80));
+ self.serialport.write(chr(1));
+ self.serialport.write(chr(baud));
+
+ print "Changed baud."
+ self.serialport.setBaudrate(rates[baud]);
+ return;
def monitortest(self):
"""Self-test several functions through the monitor."""
print "Performing monitor self-test.";
def spisetup(self):
"""Moved the FET into the SPI application."""
- print "Initializing SPI.";
self.writecmd(1,0x10,0,self.data); #SPI/SETUP
#self.readcmd();
def spitrans8(self,byte):
def MSP430start(self):
"""Start debugging."""
self.writecmd(0x11,0x20,0,self.data);
+ ident=self.MSP430ident();
+ print "Target identifies as %04x." % ident;
+
+ def MSP430stop(self):
+ """Stop debugging."""
+ self.writecmd(0x11,0x21,0,self.data);
def MSP430haltcpu(self):
"""Halt the CPU."""
self.writecmd(0x11,0xA0,0,self.data);
"""Set the instruction fetch mode."""
self.writecmd(0x11,0xC1,0,self.data);
return self.data[0];
+ def MSP430ident(self):
+ """Grab self-identification word from 0x0FF0 as big endian."""
+ i=self.MSP430peek(0x0ff0);
+ return ((i&0xFF00)>>8)+((i&0xFF)<<8)
def MSP430test(self):
"""Test MSP430 JTAG. Requires that a chip be attached."""
- self.MSP430setup();
- self.MSP430start();
- self.MSP430haltcpu();
-
- ident=self.MSP430peek(0x0ff0);
- print "Target identifies as %04x." % ident;
- if ident==0xffff:
+ if self.MSP430ident()==0xffff:
print "Is anything connected?";
print "Testing RAM.";
temp=self.MSP430peek(0x0200);
self.MSP430poke(0x0200,0xdead);
if(self.MSP430peek(0x0200)!=0xdead):
print "Poke of 0x0200 did not set to 0xDEAD properly.";
- exit;
+ return;
self.MSP430poke(0x0200,temp); #restore old value.
- self.MSP430releasecpu();
-
+ def MSP430flashtest(self):
+ self.MSP430masserase();
+ i=0x2500;
+ while(i<0x2600):
+ if(self.MSP430peek(i)!=0xFFFF):
+ print "ERROR: Unerased flash at %04x."%i;
+ self.MSP430writeflash(i,0x0000);
+ i+=2;
+ def MSP430masserase(self):
+ """Erase MSP430 flash memory."""
+ self.writecmd(0x11,0xE3,0,None);
+ def MSP430writeflash(self,adr,val):
+ """Write a word of flash memory."""
+ data=[adr&0xFF,(adr&0xFF00)>>8,val&0xFF,(val&0xFF00)>>8];
+ self.writecmd(0x11,0xE1,4,data);
+ rval=ord(self.data[0])+(ord(self.data[1])<<8);
+ if(val!=rval):
+ print "FLASH WRITE ERROR AT %04x. Found %04x, wrote %04x." % (adr,rval,val);
+ sys.exit(1);
def MSP430dumpbsl(self):
- i=0xC00;
- while i<0x1000:
+ self.MSP430dumpmem(0xC00,0xfff);
+ def MSP430dumpallmem(self):
+ self.MSP430dumpmem(0x200,0xffff);
+ def MSP430dumpmem(self,begin,end):
+ i=begin;
+ while i<end:
print "%04x %04x" % (i, self.MSP430peek(i));
i+=2;
-
+