Kari Argillander
cb243c36a8
* Change MIT license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change GPL exception license texts to SPDX-License-Identifier SPDX-License-Identifier is much easier to understand and grep than license text so use that instead. * Change misc license texts to SPDX-License-Identifier There are some external code in repo which are not licenses as most of the stuff in this repo. We still want every file to have SPDX identifier to easily grep licenses. * Add currently used license files Even though Bacnet-Stack is using SPDX identifiers we still need to give those license files with source. For this reason add all license files to license/ folder. SPDX has also files which would make same thing but this is style which example Linux kernel is using and it is quite clear so I choose that one for now. I choosed not yet bring CC-PDDC as that is not right license for those files. --------- Co-authored-by: Kari Argillander <kari.argillander@fidelix.com>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2011 Steve Karg <skarg@users.sourceforge.net>
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*
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* SPDX-License-Identifier: MIT
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*********************************************************************/
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#include <stdbool.h>
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#include <stdint.h>
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#include "hardware.h"
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#include "bacnet/basic/sys/mstimer.h"
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/* counter for the the timer which wraps every 49.7 days */
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static volatile uint32_t Millisecond_Counter;
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/* forward prototype for interrupt service routine */
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void int_cmt0_isr(void);
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/*************************************************************************
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* Description: Timer Interrupt Handler
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* Returns: nothing
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* Notes: none
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*************************************************************************/
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static void timer_interrupt_handler(void)
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{
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Millisecond_Counter++;
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}
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/*************************************************************************
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* Description: Timer Interrupt Service Routine
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* Returns: nothing
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* Notes: none
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*************************************************************************/
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void int_cmt0_isr(void)
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{
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timer_interrupt_handler();
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}
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/*************************************************************************
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* Description: returns the current millisecond count
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* Returns: none
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* Notes: This method only disables the timer overflow interrupt.
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*************************************************************************/
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unsigned long mstimer_now(void)
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{
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unsigned long timer_value; /* return value */
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timer_value = Millisecond_Counter;
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return timer_value;
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}
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/*************************************************************************
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* Description: Initialization for Timer
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* Returns: none
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* Notes: none
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*************************************************************************/
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void timer_init(void)
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{
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/* Declare error flag */
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bool err = true;
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/* CMT is configured for a 1ms interval, and executes the callback
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function CB_CompareMatch on every compare match */
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err &= R_CMT_Create(3, PDL_CMT_PERIOD, 1E-3, int_cmt0_isr, 3);
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/* Halt in while loop when RPDL errors detected */
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while (!err)
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;
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}
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