From fcc7db4fe655ae58c57a81f390c7b5aaf417ec0f Mon Sep 17 00:00:00 2001
From: travisutk <travisutk@12e2690d-a6be-4b82-a7b7-67c4a43b65c8>
Date: Wed, 7 Jul 2010 15:26:47 +0000
Subject: [PATCH] EM260 client. This is the SPI EZSP protocol, not the SIF
 debugging protocol.

git-svn-id: https://svn.code.sf.net/p/goodfet/code/trunk@659 12e2690d-a6be-4b82-a7b7-67c4a43b65c8
---
 client/GoodFETEM260.py | 46 +++++++++++++++++++++++++++
 client/goodfet.em260   | 72 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 118 insertions(+)
 create mode 100644 client/GoodFETEM260.py
 create mode 100755 client/goodfet.em260

diff --git a/client/GoodFETEM260.py b/client/GoodFETEM260.py
new file mode 100644
index 0000000..edee5b2
--- /dev/null
+++ b/client/GoodFETEM260.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+# GoodFET EM260 Radio Client
+# 
+# (C) 2010 Travis Goodspeed <travis at radiantmachines.com>
+#
+# This code is being rewritten and refactored.  You've been warned!
+
+# The EM260 is almost textbook SPI, except that the response cannot be
+# read until after the nHOST_INT pin of the EM260 drops low and a dummy
+# byte is read.  That is, the sequence will look like the following:
+
+# Transmit Host->Slave Data
+# while(nHOST_INT); //Sleep until ready.
+# Recv Dummy Byte
+# Recv Slave->Host Data
+
+# The delay is mandatory.
+
+import sys, time, string, cStringIO, struct, glob, serial, os;
+
+from GoodFETSPI import GoodFETSPI;
+
+class GoodFETEM260(GoodFETSPI):
+    EM260APP=0x01;
+    def peek8(self,adr):
+        """Read a byte from the given address."""
+        data=self.SPItrans([0xfe,0x01,0x00,
+                            0x49,
+                            0xA7,0,0,0,0,0,0,0,0]);
+        return ord(data[7]);
+    def poke8(self,adr, byte):
+        """Poke a byte to the given address."""
+    def info(self):
+        """Read the info bytes."""
+        data=self.SPItrans([0x0B,0xA7,
+                            0xFF,
+                            0xFF,0xFF,0xFF,     #00 02 A7
+                            0,0,0,0,0,0,0,0,0,0,
+                            0,0,0,0,0,0,0,0,0,0,
+                            0,0,0,0,0,0,0,0,0,0,
+                            0,0,0,0,0,0,0,0,0,0,
+                            0,0,0,0,0,0,0,0,0,0,
+                            0,0,0,0,0,0,0,0,0,0
+                            ]); 
+        for foo in data:
+            print "%02x" % ord(foo);
diff --git a/client/goodfet.em260 b/client/goodfet.em260
new file mode 100755
index 0000000..ff29934
--- /dev/null
+++ b/client/goodfet.em260
@@ -0,0 +1,72 @@
+#!/usr/bin/env python
+
+#GoodFET SPI Flash Client
+#by Travis Goodspeed
+
+#N.B.,
+#Might be Winbond W25x80-specific.
+
+import sys;
+import binascii;
+import array;
+
+from GoodFETEM260 import GoodFETEM260;
+from intelhex import IntelHex;
+
+if(len(sys.argv)==1):
+    print "Usage: %s verb [objects]\n" % sys.argv[0];
+    print "%s info" % sys.argv[0];
+    print "%s dump $foo.rom [0x$start 0x$stop]" % sys.argv[0];
+    #print "%s erase" % sys.argv[0];
+    #print "%s flash $foo.rom [0x$start 0x$stop]" % sys.argv[0];
+    #print "%s verify $foo.rom [0x$start 0x$stop]" % sys.argv[0];
+    print "%s peek 0x$start [0x$stop]" % sys.argv[0];
+    #print "%s poke 0x$adr 0x$val" % sys.argv[0];
+    sys.exit();
+
+#Initialize FET and set baud rate
+client=GoodFETEM260();
+client.serInit()
+#client.verbose=1;
+
+client.SPIsetup();
+
+#Dummy read.
+#Might read as all ones if chip has a startup delay.
+
+if(sys.argv[1]=="info"):
+	client.info();
+if(sys.argv[1]=="test"):
+	for adr in range(0,32): #*1024):
+            val=client.peek8(adr);
+            print "%04x:=%02x" % (adr,val);
+if(sys.argv[1]=="dump"):
+    f = sys.argv[2];
+    start=0x0000;
+    stop=4*1024;
+    if(len(sys.argv)>3):
+        start=int(sys.argv[3],16);
+    if(len(sys.argv)>4):
+        stop=int(sys.argv[4],16);
+    
+    print "Dumping from %04x to %04x as %s." % (start,stop,f);
+    h = IntelHex(None);
+    i=start;
+    while i<=stop:
+        data=client.peek8(i);
+        print "Dumped %04x=%02x."%(i,data);
+        h[i]=data;
+        i+=1;
+    h.write_hex_file(f);
+
+if(sys.argv[1]=="peek"):
+    start=0x0000;
+    if(len(sys.argv)>2):
+        start=int(sys.argv[2],16);
+    stop=start;
+    if(len(sys.argv)>3):
+        stop=int(sys.argv[3],16);
+    print "Peeking from %04x to %04x." % (start,stop);
+    while start<=stop:
+        print "%04x: %02x" % (start,client.peek8(start));
+        start=start+1;
-- 
2.20.1