o cleanup

o refactor debug function
o add ifeq platform to makefile
o get crc working on bank 0

scripts/crc_xmodem.py

@@ -34,7 +34,7 @@ def test_performance():
 
 def test_algo():
     data='david'
-    data='d'
+    data='da'
     print "%x" % do_crc(data)
   
 
@@ -60,7 +60,7 @@ def main():
     #print result
 
 if __name__ == '__main__':
-    test_algo()
+    #test_algo()
     main()