klipper-dgus/lib/samd21/samd21a/include/system_samd21.h

49 lines
1.2 KiB
C

/**
* \file
*
* \brief Low-level initialization functions called upon chip startup
*
* Copyright (c) 2018 Microchip Technology Inc.
*
* \asf_license_start
*
* \page License
*
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the Licence at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* \asf_license_stop
*
*/
#ifndef _SYSTEM_SAMD21_H_INCLUDED_
#define _SYSTEM_SAMD21_H_INCLUDED_
#ifdef __cplusplus
extern "C" {
#endif
#include <stdint.h>
extern uint32_t SystemCoreClock; /*!< System Clock Frequency (Core Clock) */
void SystemInit(void);
void SystemCoreClockUpdate(void);
#ifdef __cplusplus
}
#endif
#endif /* SYSTEM_SAMD21_H_INCLUDED */