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targets/hal/TARGET_Atmel/TARGET_SAM21/drivers/system/system.c@592:a274ee790e56, 2015-07-17 (annotated)
- Committer:
- mbed_official
- Date:
- Fri Jul 17 09:15:10 2015 +0100
- Revision:
- 592:a274ee790e56
- Parent:
- 579:53297373a894
Synchronized with git revision e7144f83a8d75df80c4877936b6ffe552b0be9e6
Full URL: https://github.com/mbedmicro/mbed/commit/e7144f83a8d75df80c4877936b6ffe552b0be9e6/
More API implementation for SAMR21
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
mbed_official | 579:53297373a894 | 1 | #include <system.h> |
mbed_official | 579:53297373a894 | 2 | |
mbed_official | 579:53297373a894 | 3 | /** |
mbed_official | 579:53297373a894 | 4 | * \internal |
mbed_official | 579:53297373a894 | 5 | * Dummy initialization function, used as a weak alias target for the various |
mbed_official | 579:53297373a894 | 6 | * init functions called by \ref system_init(). |
mbed_official | 579:53297373a894 | 7 | */ |
mbed_official | 579:53297373a894 | 8 | void _system_dummy_init(void); |
mbed_official | 579:53297373a894 | 9 | void _system_dummy_init(void) |
mbed_official | 579:53297373a894 | 10 | { |
mbed_official | 579:53297373a894 | 11 | return; |
mbed_official | 579:53297373a894 | 12 | } |
mbed_official | 579:53297373a894 | 13 | |
mbed_official | 579:53297373a894 | 14 | #if !defined(__DOXYGEN__) |
mbed_official | 579:53297373a894 | 15 | # if defined(__GNUC__) |
mbed_official | 579:53297373a894 | 16 | void system_clock_init(void) WEAK __attribute__((alias("_system_dummy_init"))); |
mbed_official | 579:53297373a894 | 17 | void system_board_init(void) WEAK __attribute__((alias("_system_dummy_init"))); |
mbed_official | 579:53297373a894 | 18 | void _system_events_init(void) WEAK __attribute__((alias("_system_dummy_init"))); |
mbed_official | 579:53297373a894 | 19 | void _system_extint_init(void) WEAK __attribute__((alias("_system_dummy_init"))); |
mbed_official | 579:53297373a894 | 20 | # elif defined(__ICCARM__) |
mbed_official | 579:53297373a894 | 21 | void system_clock_init(void); |
mbed_official | 579:53297373a894 | 22 | void system_board_init(void); |
mbed_official | 579:53297373a894 | 23 | void _system_events_init(void); |
mbed_official | 579:53297373a894 | 24 | void _system_extint_init(void); |
mbed_official | 579:53297373a894 | 25 | # pragma weak system_clock_init=_system_dummy_init |
mbed_official | 579:53297373a894 | 26 | # pragma weak system_board_init=_system_dummy_init |
mbed_official | 579:53297373a894 | 27 | # pragma weak _system_events_init=_system_dummy_init |
mbed_official | 579:53297373a894 | 28 | # pragma weak _system_extint_init=_system_dummy_init |
mbed_official | 579:53297373a894 | 29 | # endif |
mbed_official | 579:53297373a894 | 30 | #endif |
mbed_official | 579:53297373a894 | 31 | |
mbed_official | 579:53297373a894 | 32 | /** |
mbed_official | 579:53297373a894 | 33 | * \brief Initialize system. |
mbed_official | 579:53297373a894 | 34 | * |
mbed_official | 579:53297373a894 | 35 | * This function will call the various initialization functions within the |
mbed_official | 579:53297373a894 | 36 | * system namespace. If a given optional system module is not available, the |
mbed_official | 579:53297373a894 | 37 | * associated call will effectively be a NOP (No Operation). |
mbed_official | 579:53297373a894 | 38 | * |
mbed_official | 579:53297373a894 | 39 | * Currently the following initialization functions are supported: |
mbed_official | 579:53297373a894 | 40 | * - System clock initialization (via the SYSTEM CLOCK sub-module) |
mbed_official | 579:53297373a894 | 41 | * - Board hardware initialization (via the Board module) |
mbed_official | 579:53297373a894 | 42 | * - Event system driver initialization (via the EVSYS module) |
mbed_official | 579:53297373a894 | 43 | * - External Interrupt driver initialization (via the EXTINT module) |
mbed_official | 579:53297373a894 | 44 | */ |
mbed_official | 579:53297373a894 | 45 | void system_init(void) |
mbed_official | 579:53297373a894 | 46 | { |
mbed_official | 579:53297373a894 | 47 | /* Configure GCLK and clock sources according to conf_clocks.h */ |
mbed_official | 579:53297373a894 | 48 | system_clock_init(); |
mbed_official | 579:53297373a894 | 49 | |
mbed_official | 579:53297373a894 | 50 | /* Initialize board hardware */ |
mbed_official | 579:53297373a894 | 51 | system_board_init(); |
mbed_official | 579:53297373a894 | 52 | |
mbed_official | 579:53297373a894 | 53 | /* Initialize EVSYS hardware */ |
mbed_official | 579:53297373a894 | 54 | _system_events_init(); |
mbed_official | 579:53297373a894 | 55 | |
mbed_official | 579:53297373a894 | 56 | /* Initialize External hardware */ |
mbed_official | 579:53297373a894 | 57 | _system_extint_init(); |
mbed_official | 579:53297373a894 | 58 | } |
mbed_official | 579:53297373a894 | 59 |