74 lines
2.1 KiB
C
74 lines
2.1 KiB
C
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/* current-time.c
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*
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* Copyright (C) 2006-2023 wolfSSL Inc.
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*
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* This file is part of wolfSSL.
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*
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* wolfSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* wolfSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <wolfssl/wolfcrypt/settings.h>
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#ifdef WOLFSSL_TI_CURRTIME
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include "inc/hw_ints.h"
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#include "inc/hw_memmap.h"
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#include "inc/hw_timer.h"
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#include "driverlib/rom.h"
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#include "driverlib/sysctl.h"
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#include "driverlib/timer.h"
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void InitTimer(void) {
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uint32_t ui32SysClock = ROM_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
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SYSCTL_OSC_MAIN |
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SYSCTL_USE_PLL |
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SYSCTL_CFG_VCO_480), 120000000);
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printf("Clock=%dMHz\n", (int)(ui32SysClock/1000000));
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ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
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ROM_TimerConfigure(TIMER0_BASE, TIMER_CFG_PERIODIC);
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ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, -1);
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ROM_TimerEnable(TIMER0_BASE, TIMER_A);
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}
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static int initFlag = false ;
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double current_time(int reset)
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{
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if(!initFlag)InitTimer() ;
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initFlag = true ;
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if(reset)ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, -1);
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return (double)(-(int)ROM_TimerValueGet(TIMER0_BASE, TIMER_A ))/120000000.0 ;
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}
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#else
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/* dummy */
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double current_time(int reset) {
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static double t;
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t += 1.0; /* for avoid infinite loop of waiting time */
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if(reset)t = 0.0;
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return t ;
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}
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#endif
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