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27 lines
1019 B
Markdown
27 lines
1019 B
Markdown
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# CMSIS from Atmel Software Foundation (ASF)
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The include files in the directory tree are copied from ASF. See
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https://spaces.atmel.com/gf/project/asf/frs/?action=FrsReleaseBrowse&frs_package_id=4
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(dd. 2016-07-15 ASF version 3.30 was used)
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The directory tree was copied "as is" and its structure is as follows:
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cmsis
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└── samd21
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├── include
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│ ├── component
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│ ├── instance
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│ └── pio
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└── source
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├── gcc
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└── iar
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There is only one include file (per CPU variant) that should be included in
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the source code. For SAMD21 that is cmsis/samd21/include/samd21.h. But
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that will only work if the proper define is set. The define is named after
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the variant, for example `__SAMD21J18A__`. This define must be set in the
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`Makefile.include` of the board.
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Be aware that if you want to make changes to any file in this tree that the
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changes will be lost when a new ASF release is going to be used.
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