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57 lines
2.8 KiB
ReStructuredText
57 lines
2.8 KiB
ReStructuredText
.. pybricks-requirements:: stm32-extra
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:mod:`ustruct` -- Pack and unpack binary data
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====================================================
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.. automodule:: ustruct
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The following byte orders are supported:
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+-----------+------------------------+----------+-----------+
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| Character | Byte order | Size | Alignment |
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+===========+========================+==========+===========+
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| @ | native | native | native |
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+-----------+------------------------+----------+-----------+
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| < | little-endian | standard | none |
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+-----------+------------------------+----------+-----------+
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| > | big-endian | standard | none |
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+-----------+------------------------+----------+-----------+
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| ! | network (= big-endian) | standard | none |
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+-----------+------------------------+----------+-----------+
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The following data types are supported:
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+--------+--------------------+-------------+---------------+
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| Format | C Type | Python type | Standard size |
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+========+====================+=============+===============+
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| b | signed char | integer | 1 |
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+--------+--------------------+-------------+---------------+
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| B | unsigned char | integer | 1 |
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+--------+--------------------+-------------+---------------+
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| h | short | integer | 2 |
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+--------+--------------------+-------------+---------------+
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| H | unsigned short | integer | 2 |
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+--------+--------------------+-------------+---------------+
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| i | int | integer | 4 |
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+--------+--------------------+-------------+---------------+
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| I | unsigned int | integer | 4 |
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+--------+--------------------+-------------+---------------+
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| l | long | integer (1) | 4 |
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+--------+--------------------+-------------+---------------+
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| L | unsigned long | integer (1) | 4 |
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+--------+--------------------+-------------+---------------+
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| q | long long | integer (1) | 8 |
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+--------+--------------------+-------------+---------------+
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| Q | unsigned long long | integer (1) | 8 |
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+--------+--------------------+-------------+---------------+
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| f | float | float | 4 |
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+--------+--------------------+-------------+---------------+
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| d | double | float | 8 |
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+--------+--------------------+-------------+---------------+
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| s | char[] | bytes | |
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+--------+--------------------+-------------+---------------+
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| P | void * | integer | |
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+--------+--------------------+-------------+---------------+
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- \(1\) Supports values up to +/-1073741823
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