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doc/porting-boards.md: update documentation of board_init()

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Benjamin Valentin 2021-10-18 12:33:48 +02:00
parent fc88c4c4e5
commit ccae474cf8
1 changed files with 3 additions and 7 deletions
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10
doc/doxygen/src/porting-boards.md
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@ -62,17 +62,13 @@ somewhere else then they must be added to the include path. In
`Makefile.include`: `INCLUDES += -I<some>/<directory>/<path>`
Board initialization functions are defined in `board.c`. This file must at
least define a `board_init()` function that is called at startup. This
function initializes the `CPU` by calling`cpu_init()` among others. It is run
before the scheduler is started, so it must not block (e.g. by performing I2C
operations).
least define a `board_init()` function that is called at startup.
It is run before the scheduler is started, so it must not block (e.g. by
performing I2C operations).
```c
void board_init(void)
{
/* initialize the CPU core */
cpu_init();
/* initialize GPIO or others... */
...
}