Fix FPU settings for Cortex-M33, affects E50x series

Author: maxgerhardt

tools/platformio/platformio-build.py

@@ -134,16 +134,15 @@ def configure_application_offset(mcu, upload_protocol):
     # LD_FLASH_OFFSET is mandatory even if there is no offset
     env.Append(LINKFLAGS=["-Wl,--defsym=LD_FLASH_OFFSET=%s" % hex(offset)])
 
-
-if any(mcu in board_config.get("build.cpu") for mcu in ("cortex-m4", "cortex-m7")):
+if any(mcu in board_config.get("build.cpu") for mcu in ("cortex-m4")):
     env.Append(
         CCFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
         LINKFLAGS=["-mfpu=fpv4-sp-d16", "-mfloat-abi=hard"],
     )
 if board_config.get("build.cpu") == "cortex-m33":
     env.Append(
-        CCFLAGS=["-mfpu=fp-armv8", "-mfloat-abi=softfp"],
-        LINKFLAGS=["-mfpu=fp-armv8", "-mfloat-abi=softfp"],
+        CCFLAGS=["-mfpu=auto", "-mfloat-abi=softfp"],
+        LINKFLAGS=["-mfpu=auto", "-mfloat-abi=softfp"],
     )