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TARGET_NRF51822/TOOLCHAIN_ARM_STD/system_nrf51.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 171:3a7713b1edbc 1 /* Copyright (c) 2013, Nordic Semiconductor ASA
AnnaBridge 171:3a7713b1edbc 2 * All rights reserved.
AnnaBridge 171:3a7713b1edbc 3 *
AnnaBridge 171:3a7713b1edbc 4 * Redistribution and use in source and binary forms, with or without
AnnaBridge 171:3a7713b1edbc 5 * modification, are permitted provided that the following conditions are met:
AnnaBridge 171:3a7713b1edbc 6 *
AnnaBridge 171:3a7713b1edbc 7 * * Redistributions of source code must retain the above copyright notice, this
AnnaBridge 171:3a7713b1edbc 8 * list of conditions and the following disclaimer.
AnnaBridge 171:3a7713b1edbc 9 *
AnnaBridge 171:3a7713b1edbc 10 * * Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 171:3a7713b1edbc 11 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 171:3a7713b1edbc 12 * and/or other materials provided with the distribution.
AnnaBridge 171:3a7713b1edbc 13 *
AnnaBridge 171:3a7713b1edbc 14 * * Neither the name of Nordic Semiconductor ASA nor the names of its
AnnaBridge 171:3a7713b1edbc 15 * contributors may be used to endorse or promote products derived from
AnnaBridge 171:3a7713b1edbc 16 * this software without specific prior written permission.
AnnaBridge 171:3a7713b1edbc 17 *
AnnaBridge 171:3a7713b1edbc 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 171:3a7713b1edbc 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 171:3a7713b1edbc 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 171:3a7713b1edbc 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 171:3a7713b1edbc 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 171:3a7713b1edbc 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 171:3a7713b1edbc 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 171:3a7713b1edbc 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 171:3a7713b1edbc 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 171:3a7713b1edbc 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 171:3a7713b1edbc 28 *
AnnaBridge 171:3a7713b1edbc 29 */
AnnaBridge 171:3a7713b1edbc 30 #ifndef SYSTEM_NRF51_H
AnnaBridge 171:3a7713b1edbc 31 #define SYSTEM_NRF51_H
AnnaBridge 171:3a7713b1edbc 32
AnnaBridge 171:3a7713b1edbc 33 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 34 extern "C" {
AnnaBridge 171:3a7713b1edbc 35 #endif
AnnaBridge 171:3a7713b1edbc 36
AnnaBridge 171:3a7713b1edbc 37 #include <stdint.h>
AnnaBridge 171:3a7713b1edbc 38
AnnaBridge 171:3a7713b1edbc 39
AnnaBridge 171:3a7713b1edbc 40 extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
AnnaBridge 171:3a7713b1edbc 41
AnnaBridge 171:3a7713b1edbc 42 /**
AnnaBridge 171:3a7713b1edbc 43 * Initialize the system
AnnaBridge 171:3a7713b1edbc 44 *
AnnaBridge 171:3a7713b1edbc 45 * @param none
AnnaBridge 171:3a7713b1edbc 46 * @return none
AnnaBridge 171:3a7713b1edbc 47 *
AnnaBridge 171:3a7713b1edbc 48 * @brief Setup the microcontroller system.
AnnaBridge 171:3a7713b1edbc 49 * Initialize the System and update the SystemCoreClock variable.
AnnaBridge 171:3a7713b1edbc 50 */
AnnaBridge 171:3a7713b1edbc 51 extern void SystemInit (void);
AnnaBridge 171:3a7713b1edbc 52
AnnaBridge 171:3a7713b1edbc 53 /**
AnnaBridge 171:3a7713b1edbc 54 * Update SystemCoreClock variable
AnnaBridge 171:3a7713b1edbc 55 *
AnnaBridge 171:3a7713b1edbc 56 * @param none
AnnaBridge 171:3a7713b1edbc 57 * @return none
AnnaBridge 171:3a7713b1edbc 58 *
AnnaBridge 171:3a7713b1edbc 59 * @brief Updates the SystemCoreClock with current core Clock
AnnaBridge 171:3a7713b1edbc 60 * retrieved from cpu registers.
AnnaBridge 171:3a7713b1edbc 61 */
AnnaBridge 171:3a7713b1edbc 62 extern void SystemCoreClockUpdate (void);
AnnaBridge 171:3a7713b1edbc 63
AnnaBridge 171:3a7713b1edbc 64 #ifdef __cplusplus
AnnaBridge 171:3a7713b1edbc 65 }
AnnaBridge 171:3a7713b1edbc 66 #endif
AnnaBridge 171:3a7713b1edbc 67
AnnaBridge 171:3a7713b1edbc 68 #endif /* SYSTEM_NRF51_H */