Reverting modularization.

[goodfet] / client / GoodFETAVR.py

diff --git a/client/GoodFETAVR.py b/client/GoodFETAVR.py
new file mode 100644 (file)
index 0000000..f480017
--- /dev/null
+++ b/client/GoodFETAVR.py
@@ -0,0 +1,130 @@
+#!/usr/bin/env python
+# GoodFET SPI and SPIFlash Client Library
+# 
+# (C) 2009 Travis Goodspeed <travis at radiantmachines.com>
+#
+# This code is being rewritten and refactored.  You've been warned!
+
+import sys, time, string, cStringIO, struct, glob, serial, os;
+
+from GoodFET import GoodFET;
+
+class GoodFETAVR(GoodFET):
+    AVRAPP=0x32;
+    APP=AVRAPP;
+    AVRVendors={0x1E: "Atmel",
+                0x00: "Locked",
+                };
+    
+    #List from avr910.asm and other sources.
+    #More devices at http://avr.fenceline.de/device_data.html
+    AVRDevices={
+        0x9003: "tiny10",
+        0x9004: "tiny11",
+        0x9005: "tiny12",
+        0x9006: "tiny15",
+        0x9007: "tiny13",
+        0x9108: "tiny25",
+        0x930B: "tiny85",
+        0x9206: "tiny45",
+        
+        0x9001: "S1200",
+        
+        0x9101: "S1213",
+        0x9102: "S2323",
+        0x9105: "S2333",
+        0x9103: "S2343",
+        
+        0x9201: "S4414",
+        0x9203: "S4433",
+        0x9202: "S4434",
+        
+        0x9301: "S8515",
+        0x9303: "S8535",
+        
+        0x9305: "mega83",
+        0x930a: "mega88",
+        0x9701: "mega103",
+        0x9401: "mega161",
+        0x9402: "mega163",
+        0x9406: "mega168",
+        
+        0x950f: "mega328",
+        0x950d: "mega325",
+        0x9508: "mega32"
+        };
+    
+    def setup(self):
+        """Move the FET into the AVR application."""
+        self.writecmd(self.AVRAPP,0x10,0,self.data); #SPI/SETUP
+    
+    def trans(self,data):
+        """Exchange data by AVR.
+        Input should probably be 4 bytes."""
+        self.data=data;
+        self.writecmd(self.AVRAPP,0x00,len(data),data);
+        return self.data;
+
+    def start(self):
+        """Start the connection."""
+        self.writecmd(self.AVRAPP,0x20,0,None);
+    def forcestart(self):
+        """Forcibly start a connection."""
+        
+        for i in range(0x880,0xfff):
+            #self.glitchVoltages(0x880, i);
+            self.start();
+            bits=self.lockbits();
+            print "At %04x, Lockbits: %02x" % (i,bits);
+            if(bits==0xFF): return;
+    def erase(self):
+        """Erase the target chip."""
+        self.writecmd(self.AVRAPP,0xF0,0,None);
+    def lockbits(self):
+        """Read the target's lockbits."""
+        self.writecmd(self.AVRAPP,0x82,0,None);
+        return ord(self.data[0]);
+    def setlockbits(self,bits=0x00):
+        """Read the target's lockbits."""
+        self.writecmd(self.AVRAPP,0x92,1,[bits]);
+        return self.lockbits();
+    
+    def eeprompeek(self, adr):
+        """Read a byte of the target's EEPROM."""
+        self.writecmd(self.AVRAPP,0x81 ,2,
+                      [ (adr&0xFF), (adr>>8)]
+                      );#little-endian address
+        return ord(self.data[0]);
+    def flashpeek(self, adr):
+        """Read a byte of the target's EEPROM."""
+        self.writecmd(self.AVRAPP,0x02 ,2,
+                      [ (adr&0xFF), (adr>>8)]
+                      );#little-endian address
+        return ord(self.data[0]);
+    def flashpeekblock(self, adr):
+        """Read a byte of the target's EEPROM."""
+        self.writecmd(self.AVRAPP,0x02 ,4,
+                      [ (adr&0xFF), (adr>>8) &0xFF, 0x80, 0x00]
+                      );
+        return self.data;
+    
+    def eeprompoke(self, adr, val):
+        """Write a byte of the target's EEPROM."""
+        self.writecmd(self.AVRAPP,0x91 ,3,
+                      [ (adr&0xFF), (adr>>8), val]
+                      );#little-endian address
+        return ord(self.data[0]);
+    
+    def identstr(self):
+        """Return an identifying string."""
+        self.writecmd(self.AVRAPP,0x83,0, None);
+        vendor=self.AVRVendors.get(ord(self.data[0]));
+        deviceid=(ord(self.data[1])<<8)+ord(self.data[2]);
+        device=self.AVRDevices.get(deviceid);
+        
+        #Return hex if device is unknown.
+        #They are similar enough that it needn't be known.
+        if device==None:
+            device=("0x%04x" % deviceid);
+        
+        return "%s %s" % (vendor,device);