I2C master app and client. Impressively ugly. Might work occasionally.

[goodfet] / client / GoodFETI2C.py

diff --git a/client/GoodFETI2C.py b/client/GoodFETI2C.py
new file mode 100644 (file)
index 0000000..614be83
--- /dev/null
+++ b/client/GoodFETI2C.py
@@ -0,0 +1,32 @@
+#!/usr/bin/env python
+# GoodFET I2C and I2Ceeprom Client Library
+# 
+# Pre-alpha.  You've been warned!
+
+#import sys, time, string, cStringIO, struct, glob, serial, os
+
+from GoodFET import GoodFET
+
+class GoodFETI2C(GoodFET):
+    def I2Csetup(self):
+        """Move the FET into the I2C application."""
+        self.writecmd(0x02,0x10)
+        
+    def I2Cstart(self):
+       """Produce Start condition on I2C bus"""
+        self.writecmd(0x02,0x20)
+    def I2Cstop(self):
+       """Produce Stop condition on I2C bus"""
+        self.writecmd(0x02,0x21)
+    def I2Cread(self,count=1):
+        """Read data from I2C."""
+        self.writecmd(0x02,0x00,1,[count])
+    def I2Cwritebytes(self,data):
+       """Write multiple bytes to I2C."""
+        self.writecmd(0x02,0x01,len(data),data)
+    def I2Cwritebyte(self,val):
+       """Write a single byte to I2C."""
+        self.I2Cwritebytes([val])
+    def I2Ctrans(self,readcount,data):
+       """Use PEEK to do a multi-start transaction"""
+       return self.writecmd(0x02,0x02,len(data)+1,[readcount]+data)