rt-thread-official/bsp/xplorer4330/libraries/lpc_ip/ritimer_001.c

101 lines
3.2 KiB
C

/*
* @brief Repetitive Interrupt Timer registers and 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 "ritimer_001.h"
/*****************************************************************************
* Private types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Public types/enumerations/variables
****************************************************************************/
/*****************************************************************************
* Private functions
****************************************************************************/
/*****************************************************************************
* Public functions
****************************************************************************/
/* Initialize the RIT */
void IP_RIT_Init(IP_RITIMER_001_Type *RITx)
{
RITx->COMPVAL = 0xFFFFFFFF;
RITx->MASK = 0x00000000;
RITx->CTRL = 0x0C;
RITx->COUNTER = 0x00000000;
}
/* DeInitialize the RIT */
void IP_RIT_DeInit(IP_RITIMER_001_Type *RITx)
{
IP_RIT_Init(RITx);
}
/* Enable/Disable Timer */
void IP_RIT_Enable(IP_RITIMER_001_Type *RITx, FunctionalState NewState)
{
if (NewState == ENABLE) {
RITx->CTRL |= RIT_CTRL_TEN;
}
else {
RITx->CTRL &= ~RIT_CTRL_TEN;
}
}
/* Enable or disable timer debug */
void IP_RIT_TimerDebugCmd(IP_RITIMER_001_Type *RITx, FunctionalState NewState)
{
if (NewState == ENABLE) {
RITx->CTRL |= RIT_CTRL_ENBR;
}
else {
RITx->CTRL &= ~RIT_CTRL_ENBR;
}
}
/* Check whether interrupt is pending */
IntStatus IP_RIT_GetIntStatus(IP_RITIMER_001_Type *RITx)
{
uint8_t result;
if ((RITx->CTRL & RIT_CTRL_INT) == 1) {
result = SET;
}
else {
return RESET;
}
return (IntStatus) result;
}