em_common.h File Reference

Detailed Description

General purpose utilities.

Version

5.1.2

License

Copyright 2016 Silicon Laboratories, Inc. http://www.silabs.com

Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:

1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.

DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no obligation to support this Software. Silicon Labs is providing the Software "AS IS", with no express or implied warranties of any kind, including, but not limited to, any implied warranties of merchantability or fitness for any particular purpose or warranties against infringement of any proprietary rights of a third party.

Silicon Labs will not be liable for any consequential, incidental, or special damages, or any other relief, or for any claim by any third party, arising from your use of this Software.

Definition in file em_common.h.

#include "em_device.h"
#include <stdbool.h>

Go to the source code of this file.

Macros
#define	SL_ALIGN(X)
	Macro for aligning a variable. Use this macro before the variable definition. X denotes the storage alignment value in bytes. To be gcc compatible use SL_ATTRIBUTE_ALIGN(X) before the ; on normal variables. Use SL_ATTRIBUTE_ALIGN(X) before the opening { on struct variables.
#define	SL_ATTRIBUTE_ALIGN(X)   __attribute__ ((aligned(X)))
	GCC style macro for aligning a variable.
#define	SL_ATTRIBUTE_PACKED   __attribute__ ((packed))
	GCC style macro for handling packed structs.
#define	SL_ATTRIBUTE_SECTION(X)   __attribute__ ((section(X)))
#define	SL_MAX(a, b)   __extension__({__typeof__(a) _a = (a); __typeof__(b) _b = (b); _a > _b ? _a : _b;})
	Macro for getting maximum value. No sideeffects, a and b are evaluated once only.
#define	SL_MIN(a, b)   __extension__({__typeof__(a) _a = (a); __typeof__(b) _b = (b); _a < _b ? _a : _b;})
	Macro for getting minimum value. No sideeffects, a and b are evaluated once only.
#define	SL_NORETURN   __attribute__ ((noreturn))
	Macro for handling non-returning functions.
#define	SL_PACK_END()
	Macro for handling packed structs. Use this macro after the struct definition. With GCC, add SL_ATTRIBUTE_PACKED after the closing } of the struct definition.
#define	SL_PACK_START(x)
	Macro for handling packed structs. Use this macro before the struct definition. X denotes the maximum alignment of struct members. X is not supported with GCC. GCC always use 1 byte maximum alignment.
#define	SL_WEAK   __attribute__ ((weak))
	Macro for defining a weak symbol.

Functions
__STATIC_INLINE uint32_t	EFM32_CTZ (uint32_t value)
__STATIC_INLINE uint32_t	SL_CTZ (uint32_t value)
	Count trailing number of zeros. Use CLZ instruction if available. More...