Allow to configure upload offset address using board_upload.offset_address option

Author: ivankravets

boards/mxchip_az3166.json

@@ -29,7 +29,7 @@
   ],
   "name": "Microsoft Azure IoT Development Kit (MXChip AZ3166)",
   "upload": {
-    "flash_start": "0x0800C000",
+    "offset_address": "0x0800C000",
     "maximum_ram_size": 262144,
     "maximum_size": 1048576,
     "protocol": "stlink",

builder/main.py

@@ -146,7 +146,13 @@ def _jlink_cmd_script(env, source):
         if not isdir(build_dir):
             makedirs(build_dir)
         script_path = join(build_dir, "upload.jlink")
-        commands = ["h", "loadbin %s,0x0" % source, "r", "q"]
+        commands = [
+            "h",
+            "loadbin %s, %s" % (source, env.BoardConfig().get(
+                "upload.offset_address", "0x08000000")),
+            "r",
+            "q"
+        ]
         with open(script_path, "w") as fp:
             fp.write("\n".join(commands))
         return script_path
@@ -193,13 +199,14 @@ def __configure_upload_port(env):
     env.Replace(
         UPLOADER="openocd",
         UPLOADERFLAGS=["-s", platform.get_package_dir("tool-openocd") or ""] +
-        debug_tools.get(upload_protocol).get("server").get("arguments", []) +
-        ["-c",
-            "program {{$SOURCE}} %s verify reset; shutdown;" % env.BoardConfig().get(
-                "upload").get("flash_start", "")],
+        debug_tools.get(upload_protocol).get("server").get("arguments", []) + [
+            "-c",
+            "program {{$SOURCE}} verify reset %s; shutdown;" %
+            env.BoardConfig().get("upload.offset_address", "")
+        ],
         UPLOADCMD="$UPLOADER $UPLOADERFLAGS")
 
-    if not env.BoardConfig().get("upload").get("flash_start"):
+    if not env.BoardConfig().get("upload").get("offset_address"):
         upload_source = target_elf
     upload_actions = [env.VerboseAction("$UPLOADCMD", "Uploading $SOURCE")]