update

.platformio/platforms/at32/builder/frameworks/_bare.py

@@ -24,7 +24,7 @@ env.Append(
     ASFLAGS=["-x", "assembler-with-cpp"],
 
     CCFLAGS=[
-        "-O3",  # optimize for size
+        "-Os",  # optimize for size
         "-ffunction-sections",  # place each function in its own section
         "-fdata-sections",
         "-Wall",
@@ -41,7 +41,7 @@ env.Append(
     ],
 
     LINKFLAGS=[
-        "-O3",
+        "-Os",
         "-Wl,--gc-sections,--relax",
         "-mthumb",
     ],
@@ -50,15 +50,14 @@ env.Append(
 )
 
 #Floating point unit: hard (hardware) | softfp (software)
-
-#if (
-#    any(cpu in board_config.get("build.cpu") for cpu in ("cortex-m4"))
-#):
-#    env.Append(
-#        CFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
-#        CCFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
-#        LINKFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard", "-u _printf_float"],
-#    )
+if (
+    any(cpu in board_config.get("build.cpu") for cpu in ("cortex-m4"))
+):
+    env.Append(
+        CFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
+        CCFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
+        LINKFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
+    )
 
 if "BOARD" in env:
     env.Append(

.platformio/platforms/at32/builder/frameworks/cmsis.py

@@ -48,8 +48,10 @@ print("-------------------------------------------------------------------------
 print("Version: 2024-12");
 
 #env.SConscript("_bare.py")
+#print("framework: "+"framework-cmsis-" + mcu[0:8]);
+
 #build_script = "_bare.py"
-build_script = join(env.PioPlatform().get_package_dir("framework-cmsis-" + mcu[0:7]), 
+build_script = join(env.PioPlatform().get_package_dir("framework-cmsis-" + mcu[0:8]), 
     "tools", "platformio", "platformio-build.py")
 
 if not isfile(build_script):
@@ -60,7 +62,7 @@ SConscript(build_script)
 
 
 CMSIS_DIR = platform.get_package_dir("framework-cmsis")
-CMSIS_DEVICE_DIR = platform.get_package_dir("framework-cmsis-" + mcu[0:7])
+CMSIS_DEVICE_DIR = platform.get_package_dir("framework-cmsis-" + mcu[0:8])
 LDSCRIPTS_DIR = platform.get_package_dir("tool-ldscripts-at32")
 print("Environment:");
 print("     CMSIS_DIR: "+CMSIS_DIR);

.platformio/platforms/at32/builder/main.py

@@ -235,14 +235,13 @@ elif upload_protocol == "serial":
         __configure_upload_port=__configure_upload_port,
         UPLOADER=join(
             '%s' % platform.get_dir() or "",
-            "tools", "at32flash", "at32flash"),
+            "tools", "stm32flash", "stm32flash"),
         UPLOADERFLAGS=[
             "-g", board.get("upload.offset_address", "0x08000000"),
             "-b", env.subst("$UPLOAD_SPEED") or "115200", "-w"
         ],
         UPLOADCMD='"$UPLOADER" $UPLOADERFLAGS $SOURCE ${__configure_upload_port(__env__)}'
     )
-    #print(env.subst("$UPLOADCMD"))
 
     upload_actions = [
         env.VerboseAction(env.AutodetectUploadPort, "Looking for upload port..."),