added prescaler for 16 bit pwm in LPC1347 target
Fork of mbed-dev by
targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/src/em_int.c@0:9b334a45a8ff, 2015-10-01 (annotated)
- Committer:
- bogdanm
- Date:
- Thu Oct 01 15:25:22 2015 +0300
- Revision:
- 0:9b334a45a8ff
- Child:
- 50:a417edff4437
Initial commit on mbed-dev
Replaces mbed-src (now inactive)
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 0:9b334a45a8ff | 1 | /**************************************************************************//** |
bogdanm | 0:9b334a45a8ff | 2 | * @file em_int.c |
bogdanm | 0:9b334a45a8ff | 3 | * @brief Interrupt enable/disable unit API |
bogdanm | 0:9b334a45a8ff | 4 | * @version 3.20.12 |
bogdanm | 0:9b334a45a8ff | 5 | ****************************************************************************** |
bogdanm | 0:9b334a45a8ff | 6 | * @section License |
bogdanm | 0:9b334a45a8ff | 7 | * <b>(C) Copyright 2014 Silicon Labs, http://www.silabs.com</b> |
bogdanm | 0:9b334a45a8ff | 8 | ******************************************************************************* |
bogdanm | 0:9b334a45a8ff | 9 | * |
bogdanm | 0:9b334a45a8ff | 10 | * Permission is granted to anyone to use this software for any purpose, |
bogdanm | 0:9b334a45a8ff | 11 | * including commercial applications, and to alter it and redistribute it |
bogdanm | 0:9b334a45a8ff | 12 | * freely, subject to the following restrictions: |
bogdanm | 0:9b334a45a8ff | 13 | * |
bogdanm | 0:9b334a45a8ff | 14 | * 1. The origin of this software must not be misrepresented; you must not |
bogdanm | 0:9b334a45a8ff | 15 | * claim that you wrote the original software. |
bogdanm | 0:9b334a45a8ff | 16 | * 2. Altered source versions must be plainly marked as such, and must not be |
bogdanm | 0:9b334a45a8ff | 17 | * misrepresented as being the original software. |
bogdanm | 0:9b334a45a8ff | 18 | * 3. This notice may not be removed or altered from any source distribution. |
bogdanm | 0:9b334a45a8ff | 19 | * |
bogdanm | 0:9b334a45a8ff | 20 | * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no |
bogdanm | 0:9b334a45a8ff | 21 | * obligation to support this Software. Silicon Labs is providing the |
bogdanm | 0:9b334a45a8ff | 22 | * Software "AS IS", with no express or implied warranties of any kind, |
bogdanm | 0:9b334a45a8ff | 23 | * including, but not limited to, any implied warranties of merchantability |
bogdanm | 0:9b334a45a8ff | 24 | * or fitness for any particular purpose or warranties against infringement |
bogdanm | 0:9b334a45a8ff | 25 | * of any proprietary rights of a third party. |
bogdanm | 0:9b334a45a8ff | 26 | * |
bogdanm | 0:9b334a45a8ff | 27 | * Silicon Labs will not be liable for any consequential, incidental, or |
bogdanm | 0:9b334a45a8ff | 28 | * special damages, or any other relief, or for any claim by any third party, |
bogdanm | 0:9b334a45a8ff | 29 | * arising from your use of this Software. |
bogdanm | 0:9b334a45a8ff | 30 | * |
bogdanm | 0:9b334a45a8ff | 31 | ******************************************************************************/ |
bogdanm | 0:9b334a45a8ff | 32 | |
bogdanm | 0:9b334a45a8ff | 33 | |
bogdanm | 0:9b334a45a8ff | 34 | #include <stdint.h> |
bogdanm | 0:9b334a45a8ff | 35 | #include "em_int.h" |
bogdanm | 0:9b334a45a8ff | 36 | |
bogdanm | 0:9b334a45a8ff | 37 | /***************************************************************************//** |
bogdanm | 0:9b334a45a8ff | 38 | * @addtogroup EM_Library |
bogdanm | 0:9b334a45a8ff | 39 | * @{ |
bogdanm | 0:9b334a45a8ff | 40 | ******************************************************************************/ |
bogdanm | 0:9b334a45a8ff | 41 | |
bogdanm | 0:9b334a45a8ff | 42 | /***************************************************************************//** |
bogdanm | 0:9b334a45a8ff | 43 | * @addtogroup INT |
bogdanm | 0:9b334a45a8ff | 44 | * @brief Safe nesting interrupt disable/enable API |
bogdanm | 0:9b334a45a8ff | 45 | * @{ |
bogdanm | 0:9b334a45a8ff | 46 | * @details |
bogdanm | 0:9b334a45a8ff | 47 | * This module contains functions to safely disable and enable interrupts |
bogdanm | 0:9b334a45a8ff | 48 | * at cpu level. INT_Disable() disables interrupts and increments a lock |
bogdanm | 0:9b334a45a8ff | 49 | * level counter. INT_Enable() decrements the lock level counter and enable |
bogdanm | 0:9b334a45a8ff | 50 | * interrupts if the counter was decremented to zero. |
bogdanm | 0:9b334a45a8ff | 51 | * |
bogdanm | 0:9b334a45a8ff | 52 | * These functions would normally be used to secure critical regions. |
bogdanm | 0:9b334a45a8ff | 53 | * |
bogdanm | 0:9b334a45a8ff | 54 | * These functions should also be used inside interrupt handlers: |
bogdanm | 0:9b334a45a8ff | 55 | * @verbatim |
bogdanm | 0:9b334a45a8ff | 56 | * void SysTick_Handler(void) |
bogdanm | 0:9b334a45a8ff | 57 | * { |
bogdanm | 0:9b334a45a8ff | 58 | * INT_Disable(); |
bogdanm | 0:9b334a45a8ff | 59 | * . |
bogdanm | 0:9b334a45a8ff | 60 | * . |
bogdanm | 0:9b334a45a8ff | 61 | * . |
bogdanm | 0:9b334a45a8ff | 62 | * INT_Enable(); |
bogdanm | 0:9b334a45a8ff | 63 | * } |
bogdanm | 0:9b334a45a8ff | 64 | * @endverbatim |
bogdanm | 0:9b334a45a8ff | 65 | ******************************************************************************/ |
bogdanm | 0:9b334a45a8ff | 66 | |
bogdanm | 0:9b334a45a8ff | 67 | /** Interrupt lock level counter. Set to zero initially as we normally enter |
bogdanm | 0:9b334a45a8ff | 68 | * main with interrupts enabled */ |
bogdanm | 0:9b334a45a8ff | 69 | uint32_t INT_LockCnt = 0; |
bogdanm | 0:9b334a45a8ff | 70 | |
bogdanm | 0:9b334a45a8ff | 71 | |
bogdanm | 0:9b334a45a8ff | 72 | /** @} (end addtogroup INT) */ |
bogdanm | 0:9b334a45a8ff | 73 | /** @} (end addtogroup EM_Library) */ |