SPI Flash writing is now performed in chunks,

[goodfet] / client / goodfet.spiflash

diff --git a/client/goodfet.spiflash b/client/goodfet.spiflash
index 5c73eda..354d502 100755 (executable)
--- a/client/goodfet.spiflash
+++ b/client/goodfet.spiflash
@@ -8,6 +8,7 @@
 
 import sys;
 import binascii;
+import array;
 
 from GoodFET import GoodFET;
 from intelhex import IntelHex;
@@ -27,8 +28,13 @@ if(len(sys.argv)==1):
 client=GoodFET();
 client.serInit("/dev/ttyUSB0")
 
+
 client.SPIsetup();
 
+#Dummy read.
+#Might read as all ones if chip has a startup delay.
+client.SPIjedec();
+
 if(sys.argv[1]=="test"):
     result="";
     dropped=0;
@@ -65,8 +71,6 @@ if(sys.argv[1]=="dump"):
     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')
 
@@ -81,6 +85,35 @@ if(sys.argv[1]=="dump"):
             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;
+    chars=list(file.read());
+    chunksize=0x80;
+    
+    while i<=stop:
+        bytes=range(0,chunksize);
+        for j in range(0,chunksize):
+            bytes[j]=ord(chars[i+j]);
+        #client.SPIpokebyte(i,ord(chars[i]));
+        client.SPIpokebytes(i,bytes);
+        
+        i+=chunksize;
+        if(i%0x100==0):
+            print "Flashed %06x."%i;
+    file.close()
+
+
 if(sys.argv[1]=="erase"):
   client.SPIchiperase();
 
@@ -104,6 +137,8 @@ if(sys.argv[1]=="poke"):
     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);