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Alex B.
2025-07-05 17:23:38 -04:00
parent 60ad840f65
commit 22c3a57351
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ESP-IDF_Robot/tutorial/docs/source/data.rst
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@@ -38,7 +38,9 @@ This enables fine-grained speed control, supports differential drive configurati
Why Use __attribute((packed))?
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
The *packed* attribute tells the compiler not to add any padding between fields in memory. This makes the struct:
ESP-NOW uses fixed-size data packets (up to 250 bytes). The *__attribute__((packed))* removes compiler-added padding for precise byte alignment.
As *packed* attribute tells the compiler not to add any padding between fields in memory. This makes the struct:
- Compact
- Predictable for serialization over protocols like UART or ESP-NOW