156 lines
4.5 KiB
C
156 lines
4.5 KiB
C
/*
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* @brief LPC5410X Micro Tick chip driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2014
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* All rights reserved.
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*
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* @par
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* Software that is described herein is for illustrative purposes only
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* which provides customers with programming information regarding the
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* LPC products. This software is supplied "AS IS" without any warranties of
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* any kind, and NXP Semiconductors and its licensor disclaim any and
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* all warranties, express or implied, including all implied warranties of
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* merchantability, fitness for a particular purpose and non-infringement of
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* intellectual property rights. NXP Semiconductors assumes no responsibility
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* or liability for the use of the software, conveys no license or rights under any
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* patent, copyright, mask work right, or any other intellectual property rights in
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* or to any products. NXP Semiconductors reserves the right to make changes
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* in the software without notification. NXP Semiconductors also makes no
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* representation or warranty that such application will be suitable for the
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* specified use without further testing or modification.
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*
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* @par
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* Permission to use, copy, modify, and distribute this software and its
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* documentation is hereby granted, under NXP Semiconductors' and its
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* licensor's relevant copyrights in the software, without fee, provided that it
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* is used in conjunction with NXP Semiconductors microcontrollers. This
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* copyright, permission, and disclaimer notice must appear in all copies of
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* this code.
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*/
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#ifndef __UTICK_5410X_H_
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#define __UTICK_5410X_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** @defgroup UTICK_5410X CHIP: LPC5410X Micro Tick driver
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* @ingroup CHIP_5410X_DRIVERS
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* @{
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*/
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/**
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* @brief Micro Tick register block structure
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*/
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typedef struct {
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__IO uint32_t CTRL; /*!< UTick Control register */
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__IO uint32_t STATUS; /*!< UTick Status register */
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} LPC_UTICK_T;
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/**
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* @brief UTick register definitions
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*/
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/** UTick repeat delay bit */
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#define UTICK_CTRL_REPEAT ((uint32_t) 1UL << 31)
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/** UTick Delay Value Mask */
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#define UTICK_CTRL_DELAY_MASK ((uint32_t) 0x7FFFFFFF)
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/** UTick Interrupt Status bit */
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#define UTICK_STATUS_INTR ((uint32_t) 1 << 0)
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/** UTick Active Status bit */
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#define UTICK_STATUS_ACTIVE ((uint32_t) 1 << 1)
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/** UTick Status Register Mask */
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#define UTICK_STATUS_MASK ((uint32_t) 0x03)
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/**
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* @brief Initialize the UTICK peripheral
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* @param pUTICK : UTICK peripheral selected
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* @return Nothing
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*/
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STATIC INLINE void Chip_UTICK_Init(LPC_UTICK_T *pUTICK)
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{
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Chip_Clock_EnablePeriphClock(SYSCON_CLOCK_UTICK);
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Chip_SYSCON_PeriphReset(RESET_UTICK);
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}
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/**
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* @brief De-initialize the UTICK peripheral
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* @param pUTICK : UTICK peripheral selected
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* @return Nothing
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*/
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STATIC INLINE void Chip_UTICK_DeInit(LPC_UTICK_T *pUTICK)
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{
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Chip_Clock_DisablePeriphClock(SYSCON_CLOCK_UTICK);
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}
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/**
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* @brief Setup UTICK
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* @param pUTICK : The base address of UTICK block
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* @param tick_value : Tick value, should not exceed UTICK_CTRL_DELAY_MASK
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* @param repeat : If true then delay repeats continuously else it is one time
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* @return Nothing
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*/
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void Chip_UTICK_SetTick(LPC_UTICK_T *pUTICK, uint32_t tick_value, bool repeat);
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/**
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* @brief Setup UTICK for the passed delay (in mS)
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* @param pUTICK : The base address of UTICK block
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* @param delayMs : Delay value in mS (Maximum is 1000mS)
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* @param repeat : If true then delay repeats continuously else it is one time
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* @return Nothing
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* @note The WDT oscillator runs at about 500KHz, so delays in uS won't be
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* too accurate.
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*/
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void Chip_UTICK_SetDelayMs(LPC_UTICK_T *pUTICK, uint32_t delayMs, bool repeat);
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/**
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* @brief Read UTICK Value
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* @param pUTICK : The base address of UTICK block
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* @return Current tick value
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*/
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STATIC INLINE uint32_t Chip_UTICK_GetTick(LPC_UTICK_T *pUTICK)
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{
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return pUTICK->CTRL & UTICK_CTRL_DELAY_MASK;
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}
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/**
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* @brief Halt UTICK timer
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* @param pUTICK : The base address of UTICK block
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* @return Nothing
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*/
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STATIC INLINE void Chip_UTICK_Halt(LPC_UTICK_T *pUTICK)
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{
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pUTICK->CTRL = 0;
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}
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/**
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* @brief Returns the status of UTICK
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* @param pUTICK : The base address of UTICK block
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* @return Micro tick timer status register value
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*/
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STATIC INLINE uint32_t Chip_UTICK_GetStatus(LPC_UTICK_T *pUTICK)
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{
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return pUTICK->STATUS;
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}
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/**
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* @brief Clears UTICK Interrupt flag
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* @param pUTICK : The base address of UTICK block
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* @return Nothing
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*/
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STATIC INLINE void Chip_UTICK_ClearInterrupt(LPC_UTICK_T *pUTICK)
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{
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pUTICK->STATUS = UTICK_STATUS_INTR;
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}
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/**
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* @}
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*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* __UTICK_5410X_H_ */
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