2 # GoodFET Client Library
4 # (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
6 # This code is ugly as sin, for bootstrapping the firmware only.
7 # Rewrite cleanly as soon as is convenient.
9 import sys, time, string, cStringIO, struct
10 sys.path.append("/usr/lib/tinyos")
15 def __init__(self, *args, **kargs):
19 def serInit(self, port):
20 """Open the serial port"""
21 self.serialport = serial.Serial(
25 parity = serial.PARITY_NONE
27 #Drop DTR, which is !RST, low to begin the app.
28 self.serialport.setDTR(0);
29 self.serialport.flushInput()
30 self.serialport.flushOutput()
32 #Read and handle the initial command.
34 self.readcmd(); #Read the first command.
36 print "Verb is wrong. Incorrect firmware?";
38 def writecmd(self, app, verb, count, data):
39 """Write a command and some data to the GoodFET."""
40 self.serialport.write(chr(app));
41 self.serialport.write(chr(verb));
42 self.serialport.write(chr(count));
43 #print "count=%02x, len(data)=%04x" % (count,len(data));
46 self.serialport.write(chr(d));
47 self.readcmd(); #Uncomment this later, to ensure a response.
49 """Read a reply from the GoodFET."""
50 self.app=ord(self.serialport.read(1));
51 self.verb=ord(self.serialport.read(1));
52 self.count=ord(self.serialport.read(1));
54 self.data=self.serialport.read(self.count);
55 #print "READ %02x %02x %02x " % (self.app, self.verb, self.count);
58 def peekbyte(self,address):
59 """Read a byte of memory from the monitor."""
60 self.data=[address&0xff,address>>8];
61 self.writecmd(0,0x02,2,self.data);
63 return ord(self.data[0]);
64 def peekword(self,address):
65 """Read a word of memory from the monitor."""
66 return self.peekbyte(address)+(self.peekbyte(address+1)<<8);
67 def pokebyte(self,address,value):
68 """Set a byte of memory by the monitor."""
69 self.data=[address&0xff,address>>8,value];
70 self.writecmd(0,0x03,3,self.data);
71 return ord(self.data[0]);
72 def setBaud(self,baud):
73 rates=[9600, 9600, 19200, 38400];
75 print "Changing FET baud."
76 self.serialport.write(chr(0x00));
77 self.serialport.write(chr(0x80));
78 self.serialport.write(chr(1));
79 self.serialport.write(chr(baud));
81 print "Changed host baud."
82 self.serialport.setBaudrate(rates[baud]);
84 self.serialport.flushInput()
85 self.serialport.flushOutput()
87 print "Baud is now %i." % rates[baud];
89 def monitortest(self):
90 """Self-test several functions through the monitor."""
91 print "Performing monitor self-test.";
93 if self.peekword(0x0c00)!=0x0c04:
94 print "ERROR Fetched wrong value from 0x0c04.";
95 self.pokebyte(0x0021,0); #Drop LED
96 if self.peekbyte(0x0021)!=0:
97 print "ERROR, P1OUT not cleared.";
98 self.pokebyte(0x0021,1); #Light LED
100 print "Self-test complete.";
103 """Moved the FET into the SPI application."""
104 self.writecmd(1,0x10,0,self.data); #SPI/SETUP
106 def spitrans8(self,byte):
107 """Read and write 8 bits by SPI."""
109 self.writecmd(1,0,1,self.data); #SPI exchange
112 if self.app!=1 or self.verb!=0:
113 print "Error in SPI transaction; app=%02x, verb=%02x" % (self.app, self.verb);
114 return ord(self.data[0]);
115 def MSP430setup(self):
116 """Move the FET into the MSP430 JTAG application."""
117 print "Initializing MSP430.";
118 self.writecmd(0x11,0x10,0,self.data);
120 """Move the FET into the CC2430/CC2530 application."""
121 print "Initializing Chipcon.";
122 self.writecmd(0x30,0x10,0,self.data);
123 def CCrd_config(self):
124 """Read the config register of a Chipcon."""
125 self.writecmd(0x30,0x82,0,self.data);
126 return ord(self.data[0]);
127 def CCwr_config(self,config):
128 """Write the config register of a Chipcon."""
129 self.writecmd(0x30,0x81,1,[config&0xFF]);
131 """Get a chipcon's ID."""
132 self.writecmd(0x30,0x8B,0,None);
133 chip=ord(self.data[0]);
134 rev=ord(self.data[1]);
135 return (chip<<8)+rev;
136 def MSP430peek(self,adr):
137 """Read the contents of memory at an address."""
138 self.data=[adr&0xff, (adr&0xff00)>>8];
139 self.writecmd(0x11,0x02,2,self.data);
140 return ord(self.data[0])+(ord(self.data[1])<<8);
141 def MSP430poke(self,adr,val):
142 """Read the contents of memory at an address."""
143 self.data=[adr&0xff, (adr&0xff00)>>8, val&0xff, (val&0xff00)>>8];
144 self.writecmd(0x11,0x03,4,self.data);
145 return;# ord(self.data[0])+(ord(self.data[1])<<8);
147 def MSP430start(self):
148 """Start debugging."""
149 self.writecmd(0x11,0x20,0,self.data);
150 ident=self.MSP430ident();
151 print "Target identifies as %04x." % ident;
154 """Start debugging."""
155 self.writecmd(0x30,0x20,0,self.data);
156 ident=self.CCident();
157 print "Target identifies as %04x." % ident;
159 """Stop debugging."""
160 self.writecmd(0x30,0x21,0,self.data);
162 def MSP430stop(self):
163 """Stop debugging."""
164 self.writecmd(0x11,0x21,0,self.data);
165 def MSP430haltcpu(self):
167 self.writecmd(0x11,0xA0,0,self.data);
168 def MSP430releasecpu(self):
169 """Resume the CPU."""
170 self.writecmd(0x11,0xA1,0,self.data);
172 def MSP430shiftir8(self,ins):
173 """Shift the 8-bit Instruction Register."""
175 self.writecmd(0x11,0x80,1,data);
176 return ord(self.data[0]);
177 def MSP430shiftdr16(self,dat):
178 """Shift the 16-bit Data Register."""
179 data=[dat&0xFF,(dat&0xFF00)>>8];
180 self.writecmd(0x11,0x81,2,data);
181 return ord(self.data[0])#+(ord(self.data[1])<<8);
182 def MSP430setinstrfetch(self):
183 """Set the instruction fetch mode."""
184 self.writecmd(0x11,0xC1,0,self.data);
186 def MSP430ident(self):
187 """Grab self-identification word from 0x0FF0 as big endian."""
188 i=self.MSP430peek(0x0ff0);
189 return ((i&0xFF00)>>8)+((i&0xFF)<<8)
190 def MSP430test(self):
191 """Test MSP430 JTAG. Requires that a chip be attached."""
192 if self.MSP430ident()==0xffff:
193 print "Is anything connected?";
194 print "Testing RAM.";
195 temp=self.MSP430peek(0x0200);
196 self.MSP430poke(0x0200,0xdead);
197 if(self.MSP430peek(0x0200)!=0xdead):
198 print "Poke of 0x0200 did not set to 0xDEAD properly.";
200 self.MSP430poke(0x0200,temp); #restore old value.
201 def MSP430flashtest(self):
202 self.MSP430masserase();
205 if(self.MSP430peek(i)!=0xFFFF):
206 print "ERROR: Unerased flash at %04x."%i;
207 self.MSP430writeflash(i,0xDEAD);
209 def MSP430masserase(self):
210 """Erase MSP430 flash memory."""
211 self.writecmd(0x11,0xE3,0,None);
212 def MSP430writeflash(self,adr,val):
213 """Write a word of flash memory."""
214 if(self.MSP430peek(adr)!=0xFFFF):
215 print "FLASH ERROR: %04x not clear." % adr;
216 data=[adr&0xFF,(adr&0xFF00)>>8,val&0xFF,(val&0xFF00)>>8];
217 self.writecmd(0x11,0xE1,4,data);
218 rval=ord(self.data[0])+(ord(self.data[1])<<8);
220 print "FLASH WRITE ERROR AT %04x. Found %04x, wrote %04x." % (adr,rval,val);
222 def MSP430dumpbsl(self):
223 self.MSP430dumpmem(0xC00,0xfff);
224 def MSP430dumpallmem(self):
225 self.MSP430dumpmem(0x200,0xffff);
226 def MSP430dumpmem(self,begin,end):
229 print "%04x %04x" % (i, self.MSP430peek(i));