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44 lines
1.4 KiB
Markdown
44 lines
1.4 KiB
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 (verion 3.35.1).
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The directory tree was copied "as is" from ASF path `sam0/utils/cmsis/` and its
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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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.
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.
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.
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├── samr21
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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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However, as only the header files in `include` and its subfolders are required,
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all `source` folders are removed.
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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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# Usage and porting for SAM based CPUs
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SAM based CPU should include `sam0.h` in this directory, which will resolve any
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CPU family specific includes required.
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Currently only SAMD21, SAML21, and SAMR21 based CPUs are supported, i.e., only
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their CMSIS header files are copied from the ASF. If other CPUs are needed copy
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CMSIS files from the ASF for the respective CPU family here and adapt `sam0.h`
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accordingly.
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