mbed library sources
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targets/hal/TARGET_Atmel/TARGET_SAM21/drivers/system/system.c
- Committer:
- mbed_official
- Date:
- 2015-07-17
- Revision:
- 592:a274ee790e56
- Parent:
- 579:53297373a894
File content as of revision 592:a274ee790e56:
#include <system.h> /** * \internal * Dummy initialization function, used as a weak alias target for the various * init functions called by \ref system_init(). */ void _system_dummy_init(void); void _system_dummy_init(void) { return; } #if !defined(__DOXYGEN__) # if defined(__GNUC__) void system_clock_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void system_board_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void _system_events_init(void) WEAK __attribute__((alias("_system_dummy_init"))); void _system_extint_init(void) WEAK __attribute__((alias("_system_dummy_init"))); # elif defined(__ICCARM__) void system_clock_init(void); void system_board_init(void); void _system_events_init(void); void _system_extint_init(void); # pragma weak system_clock_init=_system_dummy_init # pragma weak system_board_init=_system_dummy_init # pragma weak _system_events_init=_system_dummy_init # pragma weak _system_extint_init=_system_dummy_init # endif #endif /** * \brief Initialize system. * * This function will call the various initialization functions within the * system namespace. If a given optional system module is not available, the * associated call will effectively be a NOP (No Operation). * * Currently the following initialization functions are supported: * - System clock initialization (via the SYSTEM CLOCK sub-module) * - Board hardware initialization (via the Board module) * - Event system driver initialization (via the EVSYS module) * - External Interrupt driver initialization (via the EXTINT module) */ void system_init(void) { /* Configure GCLK and clock sources according to conf_clocks.h */ system_clock_init(); /* Initialize board hardware */ system_board_init(); /* Initialize EVSYS hardware */ _system_events_init(); /* Initialize External hardware */ _system_extint_init(); }