Merge branch 'release/v2.0.0'

Author: valeros

boards/az-delivery-devkit-v4.json

@@ -26,7 +26,7 @@
   ],
   "name": "AZ-Delivery ESP-32 Dev Kit C V4",
   "upload": {
-    "flash_size": "16MB",
+    "flash_size": "4MB",
     "maximum_ram_size": 532480,
     "maximum_size": 16777216,
     "require_upload_port": true,

builder/frameworks/_embed_files.py

@@ -103,7 +103,9 @@ def embed_files(files, files_type):
 
 
 def transform_to_asm(target, source, env):
-    return [join("$BUILD_DIR", s.name + ".S") for s in source], source
+    files = [join("$BUILD_DIR", s.name + ".S") for s in source]
+    env.AppendUnique(PIOBUILDFILES=files)
+    return files, source
 
 env.Append(
     BUILDERS=dict(