Johannes Stratmann / mbed-dev

added prescaler for 16 bit pwm in LPC1347 target

Fork of mbed-dev by mbed official

targets/cmsis/TARGET_ARM_SSG/TARGET_MPS2_M0P/system_CMSDK_CM0plus.c@144:ef7eb2e8f9f7, 2016-09-02 (annotated)

Committer:
<>
Date:
Fri Sep 02 15:07:44 2016 +0100
Revision:
144:ef7eb2e8f9f7
Parent:
80:bdf1132a57cf 
This updates the lib to the mbed lib v125

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* MPS2 CMSIS Library
<> 144:ef7eb2e8f9f7 2 *
<> 144:ef7eb2e8f9f7 3 * Copyright (c) 2006-2016 ARM Limited
<> 144:ef7eb2e8f9f7 4 * All rights reserved.
<> 144:ef7eb2e8f9f7 5 *
<> 144:ef7eb2e8f9f7 6 * Redistribution and use in source and binary forms, with or without
<> 144:ef7eb2e8f9f7 7 * modification, are permitted provided that the following conditions are met:
<> 144:ef7eb2e8f9f7 8 *
<> 144:ef7eb2e8f9f7 9 * 1. Redistributions of source code must retain the above copyright notice,
<> 144:ef7eb2e8f9f7 10 * this list of conditions and the following disclaimer.
<> 144:ef7eb2e8f9f7 11 *
<> 144:ef7eb2e8f9f7 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 144:ef7eb2e8f9f7 13 * this list of conditions and the following disclaimer in the documentation
<> 144:ef7eb2e8f9f7 14 * and/or other materials provided with the distribution.
<> 144:ef7eb2e8f9f7 15 *
<> 144:ef7eb2e8f9f7 16 * 3. Neither the name of the copyright holder nor the names of its contributors
<> 144:ef7eb2e8f9f7 17 * may be used to endorse or promote products derived from this software without
<> 144:ef7eb2e8f9f7 18 * specific prior written permission.
<> 144:ef7eb2e8f9f7 19 *
<> 144:ef7eb2e8f9f7 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 144:ef7eb2e8f9f7 21 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 144:ef7eb2e8f9f7 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
<> 144:ef7eb2e8f9f7 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
<> 144:ef7eb2e8f9f7 24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
<> 144:ef7eb2e8f9f7 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
<> 144:ef7eb2e8f9f7 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
<> 144:ef7eb2e8f9f7 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
<> 144:ef7eb2e8f9f7 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
<> 144:ef7eb2e8f9f7 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
<> 144:ef7eb2e8f9f7 30 * POSSIBILITY OF SUCH DAMAGE.
<> 144:ef7eb2e8f9f7 31 *******************************************************************************
<> 144:ef7eb2e8f9f7 32 * @file system_CMSDK_CM0plus.c
<> 144:ef7eb2e8f9f7 33 * @brief CMSIS Device System Source File for
<> 144:ef7eb2e8f9f7 34 * CMSDK_M0 Device
<> 144:ef7eb2e8f9f7 35 *
<> 144:ef7eb2e8f9f7 36 *******************************************************************************/
<> 144:ef7eb2e8f9f7 37
<> 144:ef7eb2e8f9f7 38
<> 144:ef7eb2e8f9f7 39 #include "CMSDK_CM0plus.h"
<> 144:ef7eb2e8f9f7 40
<> 144:ef7eb2e8f9f7 41 /*----------------------------------------------------------------------------
<> 144:ef7eb2e8f9f7 42 Define clocks
<> 144:ef7eb2e8f9f7 43 *----------------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 44 #define __XTAL (50000000UL) /* Oscillator frequency */
<> 144:ef7eb2e8f9f7 45
<> 144:ef7eb2e8f9f7 46 #define __SYSTEM_CLOCK (__XTAL / 2)
<> 144:ef7eb2e8f9f7 47
<> 144:ef7eb2e8f9f7 48
<> 144:ef7eb2e8f9f7 49 /*----------------------------------------------------------------------------
<> 144:ef7eb2e8f9f7 50 Clock Variable definitions
<> 144:ef7eb2e8f9f7 51 *----------------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 52 uint32_t SystemCoreClock = __SYSTEM_CLOCK;/*!< System Clock Frequency (Core Clock)*/
<> 144:ef7eb2e8f9f7 53
<> 144:ef7eb2e8f9f7 54
<> 144:ef7eb2e8f9f7 55 /*----------------------------------------------------------------------------
<> 144:ef7eb2e8f9f7 56 Clock functions
<> 144:ef7eb2e8f9f7 57 *----------------------------------------------------------------------------*/
<> 144:ef7eb2e8f9f7 58 /**
<> 144:ef7eb2e8f9f7 59 * Update SystemCoreClock variable
<> 144:ef7eb2e8f9f7 60 *
<> 144:ef7eb2e8f9f7 61 * @param none
<> 144:ef7eb2e8f9f7 62 * @return none
<> 144:ef7eb2e8f9f7 63 *
<> 144:ef7eb2e8f9f7 64 * @brief Updates the SystemCoreClock with current core Clock
<> 144:ef7eb2e8f9f7 65 * retrieved from cpu registers.
<> 144:ef7eb2e8f9f7 66 */
<> 144:ef7eb2e8f9f7 67 void SystemCoreClockUpdate (void)
<> 144:ef7eb2e8f9f7 68 {
<> 144:ef7eb2e8f9f7 69
<> 144:ef7eb2e8f9f7 70 SystemCoreClock = __SYSTEM_CLOCK;
<> 144:ef7eb2e8f9f7 71
<> 144:ef7eb2e8f9f7 72 }
<> 144:ef7eb2e8f9f7 73
<> 144:ef7eb2e8f9f7 74 /**
<> 144:ef7eb2e8f9f7 75 * Initialize the system
<> 144:ef7eb2e8f9f7 76 *
<> 144:ef7eb2e8f9f7 77 * @param none
<> 144:ef7eb2e8f9f7 78 * @return none
<> 144:ef7eb2e8f9f7 79 *
<> 144:ef7eb2e8f9f7 80 * @brief Setup the microcontroller system.
<> 144:ef7eb2e8f9f7 81 * Initialize the System.
<> 144:ef7eb2e8f9f7 82 */
<> 144:ef7eb2e8f9f7 83 void SystemInit (void)
<> 144:ef7eb2e8f9f7 84 {
<> 144:ef7eb2e8f9f7 85
<> 144:ef7eb2e8f9f7 86 SystemCoreClock = __SYSTEM_CLOCK;
<> 144:ef7eb2e8f9f7 87
<> 144:ef7eb2e8f9f7 88 }