84 lines
3.3 KiB
C
84 lines
3.3 KiB
C
/*
|
|
* @brief 32-bit Timer/PWM control functions
|
|
*
|
|
* @note
|
|
* Copyright(C) NXP Semiconductors, 2012
|
|
* All rights reserved.
|
|
*
|
|
* @par
|
|
* Software that is described herein is for illustrative purposes only
|
|
* which provides customers with programming information regarding the
|
|
* LPC products. This software is supplied "AS IS" without any warranties of
|
|
* any kind, and NXP Semiconductors and its licensor disclaim any and
|
|
* all warranties, express or implied, including all implied warranties of
|
|
* merchantability, fitness for a particular purpose and non-infringement of
|
|
* intellectual property rights. NXP Semiconductors assumes no responsibility
|
|
* or liability for the use of the software, conveys no license or rights under any
|
|
* patent, copyright, mask work right, or any other intellectual property rights in
|
|
* or to any products. NXP Semiconductors reserves the right to make changes
|
|
* in the software without notification. NXP Semiconductors also makes no
|
|
* representation or warranty that such application will be suitable for the
|
|
* specified use without further testing or modification.
|
|
*
|
|
* @par
|
|
* Permission to use, copy, modify, and distribute this software and its
|
|
* documentation is hereby granted, under NXP Semiconductors' and its
|
|
* licensor's relevant copyrights in the software, without fee, provided that it
|
|
* is used in conjunction with NXP Semiconductors microcontrollers. This
|
|
* copyright, permission, and disclaimer notice must appear in all copies of
|
|
* this code.
|
|
*/
|
|
|
|
#include "timer_001.h"
|
|
|
|
/*****************************************************************************
|
|
* Private types/enumerations/variables
|
|
****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* Public types/enumerations/variables
|
|
****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* Private functions
|
|
****************************************************************************/
|
|
|
|
/*****************************************************************************
|
|
* Public functions
|
|
****************************************************************************/
|
|
|
|
/* Resets the timer terminal and prescale counts to 0 */
|
|
void IP_TIMER_Reset(IP_TIMER_001_Type *timer)
|
|
{
|
|
uint32_t reg;
|
|
|
|
/* Disable timer, set terminal count to non-0 */
|
|
reg = timer->TCR;
|
|
timer->TCR = 0;
|
|
timer->TC = 1;
|
|
|
|
/* Reset timer counter */
|
|
timer->TCR = TIMER_RESET;
|
|
|
|
/* Wait for terminal count to clear */
|
|
while (timer->TC != 0) {}
|
|
|
|
/* Restore timer state */
|
|
timer->TCR = reg;
|
|
}
|
|
|
|
/* Sets external match control (MATn.matchnum) pin control */
|
|
void IP_TIMER_ExtMatchControlSet(IP_TIMER_001_Type *timer, int8_t initial_state,
|
|
IP_TIMER_PIN_MATCH_STATE_Type matchState, int8_t matchnum)
|
|
{
|
|
timer->EMR = (((uint32_t) initial_state) << matchnum) |
|
|
(((uint32_t) matchState) << (4 + (matchnum * 2)));
|
|
}
|
|
|
|
/* Sets timer count source and edge with the selected passed from CapSrc */
|
|
void IP_TIMER_SetTimerClockSrc(IP_TIMER_001_Type *timer,
|
|
IP_TIMER_CAP_SRC_STATE_Type capSrc, int8_t capnum)
|
|
{
|
|
timer->CTCR = (uint32_t) capSrc | ((uint32_t) capnum) << 2;
|
|
}
|