25fd3c3400
* iButton: Add DS1971 Support refactored for v2 * Fix requested by gsurkov * Fix DALLAS_COMMON_CMD_* use, cusotm data field to Eeprom and COPY_SCRAPTCHPAD * Fix Emulation + Memory Info + Docs * Fix docs, strings, refactor code Co-authored-by: Georgii Surkov <georgii.surkov@outlook.com> Co-authored-by: あく <alleteam@gmail.com>
52 lines
2.1 KiB
Markdown
52 lines
2.1 KiB
Markdown
# iButton key file format
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## Example
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```
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Filetype: Flipper iButton key
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Version: 2
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Protocol: DS1992
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Rom Data: 08 DE AD BE EF FA CE 4E
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Sram Data: 4E 65 76 65 72 47 6F 6E 6E 61 47 69 76 65 59 6F 75 55 70 4E 65 76 65 72 47 6F 6E 6E 61 4C 65 74 59 6F 75 44 6F 77 6E 4E 65 76 65 72 47 6F 6E 6E 61 52 75 6E 41 72 6F 75 6E 64 41 6E 64 44 65 73 65 72 74 59 6F 75 4E 65 76 65 72 47 6F 6E 6E 61 4D 61 6B 65 59 6F 75 43 72 79 4E 65 76 65 72 47 6F 6E 6E 61 53 61 79 47 6F 6F 64 62 79 65 4E 65 76 65 72 47 6F 6E 6E 61 54 65 6C 6C 41 4C 69 65
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```
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## Description
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Filename extension: `.ibtn`
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The file stores a single iButton key, complete with all data required by the protocol.
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## Version history
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### 2. Current version.
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Changelog:
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- Added support for different Dallas protocols
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- Fields after `Protocol` are protocol-dependent for flexibiliy
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#### Format fields
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| Name | Type | Description |
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| ----------- | ------ | -------------------------------------------- |
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| Protocol | string | Currently supported: DS1990, DS1992, DS1996, DS1997, DSGeneric*, Cyfral, Metakom |
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| Rom Data | hex | Read-only memory data (Dallas protocols only) |
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| Sram Data | hex | Static RAM data (DS1992 and DS1996 only)
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| Eeprom Data | hex | EEPROM data (DS1971 only)
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| Data | hex | Key data (Cyfral & Metakom only) |
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NOTE 1: DSGeneric is a catch-all protocol for all unknown 1-Wire devices. It reads only the ROM and does not perform any checks on the read data.
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It can also be used if a key with a deliberately invalid family code or checksum is required.
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NOTE 2: When adding new protocols, it is not necessarily to increase the format version, define the format in the protocol implementation instead.
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### 1. Initial version.
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Deprecated, will be converted to current version upon saving.
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#### Format fields
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| Name | Type | Description |
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| -------- | ------ | -------------------------------------------- |
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| Key type | string | Currently supported: Cyfral, Dallas, Metakom |
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| Data | hex | Key data |
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