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Adjust flash size from 2M to 4M for Arduino MMU compatibility #399

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Merged
Jason2866 merged 2 commits into from
Feb 23, 2026
Merged

Adjust flash size from 2M to 4M for Arduino MMU compatibility #399

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50f69c8
Adjust flash size from 2M to 4M for Arduino MMU compatibility
Jason2866 Feb 23, 2026
c97b447
Fix print statement formatting for flash size info
Jason2866 Feb 23, 2026
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6 changes: 5 additions & 1 deletion builder/frameworks/espidf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -419,7 +419,11 @@ def generate_board_specific_config():
# Fallback to board.json manifest
if not flash_size:
flash_size = board.get("upload", {}).get("flash_size", None)


if flash_size == "2MB":
print("Info: Detected 2MB flash size setting, override to 4MB for Arduino MMU page size compatibility")
flash_size = "4MB"
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if flash_size:
# Configure both string and boolean flash size formats
# Disable other flash size options first
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