RAM usage monitor, see blog for details.

[goodfet] / client / GoodFET.py

diff --git a/client/GoodFET.py b/client/GoodFET.py
index 952ae98..8d588ed 100755 (executable)
--- a/client/GoodFET.py
+++ b/client/GoodFET.py
@@ -6,9 +6,7 @@
 # This code is ugly as sin, for bootstrapping the firmware only.
 # Rewrite cleanly as soon as is convenient.
 
-import sys, time, string, cStringIO, struct
-#sys.path.append("/usr/lib/tinyos")
-import serial
+import sys, time, string, cStringIO, struct, glob, serial
 
 
 class GoodFET:
@@ -16,8 +14,18 @@ class GoodFET:
         self.data=[0];
     def timeout(self):
         print "timout\n";
-    def serInit(self, port):
+    def serInit(self, port=None):
         """Open the serial port"""
+        
+        if port is None:
+            glob_list = glob.glob("/dev/tty.usbserial*");
+            if len(glob_list) > 0:
+                port = glob_list[0];
+        if port is None:
+            glob_list = glob.glob("/dev/ttyUSB*");
+            if len(glob_list) > 0:
+                port = glob_list[0];
+        
         self.serialport = serial.Serial(
             port,
             #9600,
@@ -69,6 +77,19 @@ class GoodFET:
         self.data=[address&0xff,address>>8,value];
         self.writecmd(0,0x03,3,self.data);
         return ord(self.data[0]);
+    def dumpmem(self,begin,end):
+        i=begin;
+        while i<end:
+            print "%04x %04x" % (i, self.peekword(i));
+            i+=2;
+    def monitor_ram_pattern(self):
+        """Overwrite all of RAM with 0xBEEF."""
+        self.writecmd(0,0x90,0,self.data);
+        return;
+    def monitor_ram_depth(self):
+        """Determine how many bytes of RAM are unused by looking for 0xBEEF.."""
+        self.writecmd(0,0x91,0,self.data);
+        return ord(self.data[0])+(ord(self.data[1])<<8);
     def setBaud(self,baud):
         rates=[9600, 9600, 19200, 38400];
         self.data=[baud];
@@ -102,7 +123,7 @@ class GoodFET:
     def SPIsetup(self):
         """Moved the FET into the SPI application."""
         self.writecmd(0x01,0x10,0,self.data); #SPI/SETUP
-        #self.readcmd();
+        
     def SPItrans8(self,byte):
         """Read and write 8 bits by SPI."""
         data=self.SPItrans([byte]);
@@ -115,11 +136,20 @@ class GoodFET:
         return self.data;
     
     JEDECmanufacturers={0xFF: "MISSING",
-                        0xEF: "Winbond"};
-    JEDECdevices={0xEF3014: "W25X80L",
+                        0xEF: "Winbond",
+                        0xC2: "MXIC",
+                        0x20: "Numonyx/ST"
+                        };
+
+    JEDECdevices={0xFFFFFF: "MISSING",
+                  0xEF3014: "W25X80L",
                   0xEF3013: "W25X40L",
                   0xEF3012: "W25X20L",
-                  0xEF3011: "W25X10L"};
+                  0xEF3011: "W25X10L",
+                  0xC22014: "MX25L8005",
+                  0xC22013: "MX25L4005",
+                  0x204011: "M45PE10"
+                  };
     def SPIjedec(self):
         """Grab an SPI Flash ROM's JEDEC bytes."""
         data=[0x9f, 0, 0, 0];
@@ -148,19 +178,38 @@ class GoodFET:
         self.writecmd(0x01,0x02,3,data);
         return self.data;
     
+    def SPIpokebyte(self,adr,val):
+        self.SPIpokebytes(adr,[val]);
+    def SPIpokebytes(self,adr,data):
+        #self.SPIwriteenable();
+        adranddata=[(adr&0xFF0000)>>16,
+              (adr&0xFF00)>>8,
+              adr&0xFF
+              ]+data;
+        self.writecmd(0x01,0x03,
+                      len(adranddata),adranddata);
+        
+    def SPIchiperase(self):
+        """Mass erase an SPI Flash ROM."""
+        self.writecmd(0x01,0x81,0,[]);
+    def SPIwriteenable(self):
+        """SPI Flash Write Enable"""
+        data=[0x06];
+        self.SPItrans(data);
+        
     def SPIjedecmanstr(self):
         """Grab the JEDEC manufacturer string.  Call after SPIjedec()."""
-        man=self.JEDECmanufacturers[self.JEDECmanufacturer];
+        man=self.JEDECmanufacturers.get(self.JEDECmanufacturer)
         if man==0:
             man="UNKNOWN";
         return man;
     
     def SPIjedecstr(self):
         """Grab the JEDEC manufacturer string.  Call after SPIjedec()."""
-        man=self.JEDECmanufacturers[self.JEDECmanufacturer];
+        man=self.JEDECmanufacturers.get(self.JEDECmanufacturer);
         if man==0:
             man="UNKNOWN";
-        device=self.JEDECdevices[self.JEDECdevice];
+        device=self.JEDECdevices.get(self.JEDECdevice);
         if device==0:
             device="???"
         return "%s %s" % (man,device);
@@ -191,7 +240,7 @@ class GoodFET:
                 0xFF00:"CCmissing"};
     def CCidentstr(self):
         ident=self.CCident();
-        chip=self.CCversions[ident&0xFF00];
+        chip=self.CCversions.get(ident&0xFF00);
         return "%s/r%02x" % (chip, ident&0xFF); 
     def CCident(self):
         """Get a chipcon's ID."""
@@ -269,10 +318,11 @@ class GoodFET:
         self.writecmd(0x30,0x20,0,self.data);
         ident=self.CCidentstr();
         print "Target identifies as %s." % ident;
-        print "Status: %s." % self.CCstatusstr();
+        #print "Status: %s." % self.CCstatusstr();
         self.CCreleasecpu();
         self.CChaltcpu();
         print "Status: %s." % self.CCstatusstr();
+        
     def CCstop(self):
         """Stop debugging."""
         self.writecmd(0x30,0x21,0,self.data);