45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
/* time-STM32F2.c
|
|
*
|
|
* Copyright (C) 2006-2023 wolfSSL Inc.
|
|
*
|
|
* This file is part of wolfSSL.
|
|
*
|
|
* wolfSSL is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* wolfSSL is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
|
|
*/
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
|
|
#include <wolfssl/wolfcrypt/settings.h>
|
|
|
|
#include <stdint.h>
|
|
#define DWT ((DWT_Type *) (0xE0001000UL) )
|
|
typedef struct
|
|
{
|
|
uint32_t CTRL; /*!< Offset: 0x000 (R/W) Control Register */
|
|
uint32_t CYCCNT; /*!< Offset: 0x004 (R/W) Cycle Count Register */
|
|
} DWT_Type;
|
|
|
|
extern uint32_t SystemCoreClock ;
|
|
|
|
double current_time(int reset)
|
|
{
|
|
if(reset) DWT->CYCCNT = 0 ;
|
|
return ((double)DWT->CYCCNT/SystemCoreClock) ;
|
|
}
|
|
|