Prepare parsing RGN files.

grmn/rgnbin.py

@@ -0,0 +1,26 @@
+# -*- coding: utf-8 -*-
+# Thanks to Herbert Oppmann (herby) for all your work!
+
+from . import devices
+from .chksum import ChkSum
+from struct import unpack
+
+# RGN structure might be: RGN > BIN or RGN > RGN > BIN
+# RGN = outside hull
+# BIN = firmware + hwid + checksum
+
+class ParseException(Exception):
+    pass
+
+class RgnBin:
+    def __init__(self, filename: str=None):
+        self.filename = filename
+        self.struct = []
+        if filename is not None:
+            self.load()
+
+    def load(self):
+        if self.filename is None:
+            return False
+        with open(self.filename, "rb") as f:
+            f.close()