EM260 client.

[goodfet] / client / GoodFETEM260.py

diff --git a/client/GoodFETEM260.py b/client/GoodFETEM260.py
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+++ b/client/GoodFETEM260.py
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+#!/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);