441 lines
14 KiB
C
441 lines
14 KiB
C
/*
|
|
* @brief LPC11u6x State Configurable Timer (SCT) Chip driver
|
|
*
|
|
* @note
|
|
* Copyright(C) NXP Semiconductors, 2013
|
|
* 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 licenser 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.
|
|
*/
|
|
|
|
#ifndef __SCT_11U6X_H_
|
|
#define __SCT_11U6X_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/** @defgroup SCT_11U6X CHIP: LPC11u6x State Configurable Timer driver
|
|
* @ingroup CHIP_11U6X_Drivers
|
|
* @{
|
|
*/
|
|
|
|
/*
|
|
* @brief SCT Module configuration
|
|
*/
|
|
#define CONFIG_SCT_nEV (6) /*!< Number of events */
|
|
#define CONFIG_SCT_nRG (5) /*!< Number of match/compare registers */
|
|
#define CONFIG_SCT_nOU (4) /*!< Number of outputs */
|
|
|
|
/**
|
|
* @brief State Configurable Timer register block structure
|
|
*/
|
|
typedef struct {
|
|
__IO uint32_t CONFIG; /*!< Configuration Register */
|
|
union {
|
|
__IO uint32_t CTRL_U; /*!< Control Register */
|
|
struct {
|
|
__IO uint16_t CTRL_L; /*!< Low control register */
|
|
__IO uint16_t CTRL_H; /*!< High control register */
|
|
};
|
|
|
|
};
|
|
|
|
union {
|
|
__IO uint32_t LIMIT; /*!< limit Register */
|
|
struct {
|
|
__IO uint16_t LIMIT_L; /*!< limit register for counter L */
|
|
__IO uint16_t LIMIT_H; /*!< limit register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
union {
|
|
__IO uint32_t HALT; /*!< Halt Register */
|
|
struct {
|
|
__IO uint16_t HALT_L; /*!< halt register for counter L */
|
|
__IO uint16_t HALT_H; /*!< halt register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
union {
|
|
__IO uint32_t STOP; /*!< Stop Register */
|
|
struct {
|
|
__IO uint16_t STOP_L; /*!< stop register for counter L */
|
|
__IO uint16_t STOP_H; /*!< stop register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
union {
|
|
__IO uint32_t START; /*!< start Register */
|
|
struct {
|
|
__IO uint16_t START_L; /*!< start register for counter L */
|
|
__IO uint16_t START_H; /*!< start register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
uint32_t RESERVED1[10]; /*!< 0x03C reserved */
|
|
union {
|
|
__IO uint32_t COUNT_U; /*!< counter register */
|
|
struct {
|
|
__IO uint16_t COUNT_L; /*!< counter register for counter L */
|
|
__IO uint16_t COUNT_H; /*!< counter register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
union {
|
|
__IO uint32_t STATE; /*!< State register */
|
|
struct {
|
|
__IO uint16_t STATE_L; /*!< state register for counter L */
|
|
__IO uint16_t STATE_H; /*!< state register for counter H */
|
|
};
|
|
|
|
};
|
|
|
|
__I uint32_t INPUT; /*!< input register */
|
|
union {
|
|
__IO uint32_t REGMODE; /*!< RegMode register */
|
|
struct {
|
|
__IO uint16_t REGMODE_L; /*!< match - capture registers mode register L */
|
|
__IO uint16_t REGMODE_H; /*!< match - capture registers mode register H */
|
|
};
|
|
|
|
};
|
|
|
|
__IO uint32_t OUTPUT; /*!< output register */
|
|
__IO uint32_t OUTPUTDIRCTRL; /*!< output counter direction Control Register */
|
|
__IO uint32_t RES; /*!< conflict resolution register */
|
|
__IO uint32_t DMA0REQUEST; /*!< DMA0 Request Register */
|
|
__IO uint32_t DMA1REQUEST; /*!< DMA1 Request Register */
|
|
uint32_t RESERVED2[35];
|
|
__IO uint32_t EVEN; /*!< event enable register */
|
|
__IO uint32_t EVFLAG; /*!< event flag register */
|
|
__IO uint32_t CONEN; /*!< conflict enable register */
|
|
__IO uint32_t CONFLAG; /*!< conflict flag register */
|
|
union {
|
|
__IO union { /*!< ... Match / Capture value */
|
|
uint32_t U; /*!< SCTMATCH[i].U Unified 32-bit register */
|
|
struct {
|
|
uint16_t L; /*!< SCTMATCH[i].L Access to L value */
|
|
uint16_t H; /*!< SCTMATCH[i].H Access to H value */
|
|
};
|
|
|
|
} MATCH[CONFIG_SCT_nRG];
|
|
|
|
__I union {
|
|
uint32_t U; /*!< SCTCAP[i].U Unified 32-bit register */
|
|
struct {
|
|
uint16_t L; /*!< SCTCAP[i].L Access to L value */
|
|
uint16_t H; /*!< SCTCAP[i].H Access to H value */
|
|
};
|
|
|
|
} CAP[CONFIG_SCT_nRG];
|
|
|
|
};
|
|
|
|
uint32_t RESERVED3[64 - CONFIG_SCT_nRG]; /*!< ...-0x1FC reserved */
|
|
|
|
union {
|
|
__IO union { /*!< ... Match reload value */
|
|
uint32_t U; /*!< MATCHREL[i].U Unified 32-bit register */
|
|
struct {
|
|
uint16_t L; /*!< MATCHREL[i].L Access to L value */
|
|
uint16_t H; /*!< MATCHREL[i].H Access to H value */
|
|
};
|
|
|
|
} MATCHREL[CONFIG_SCT_nRG];
|
|
|
|
__I union {
|
|
uint32_t U; /*!< CAPCTRL[i].U Unified 32-bit register */
|
|
struct {
|
|
uint16_t L; /*!< CAPCTRL[i].L Access to L value */
|
|
uint16_t H; /*!< CAPCTRL[i].H Access to H value */
|
|
};
|
|
|
|
} CAPCTRL[CONFIG_SCT_nRG];
|
|
|
|
};
|
|
|
|
uint32_t RESERVED4[64 - CONFIG_SCT_nRG]; /*!< ...-0x2FC reserved */
|
|
|
|
__IO struct { /*!< SCTEVENT[i].STATE / SCTEVENT[i].CTRL*/
|
|
uint32_t STATE; /*!< Event State Register */
|
|
uint32_t CTRL; /*!< Event Control Register */
|
|
} EVENT[CONFIG_SCT_nEV];
|
|
|
|
uint32_t RESERVED9[128 - 2 * CONFIG_SCT_nEV]; /*!< ...-0x4FC reserved */
|
|
__IO struct { /*!< SCTOUT[i].SET / SCTOUT[i].CLR */
|
|
uint32_t SET; /*!< Output n Set Register */
|
|
uint32_t CLR; /*!< Output n Clear Register */
|
|
} OUT[CONFIG_SCT_nOU];
|
|
|
|
} LPC_SCT_T;
|
|
|
|
/*
|
|
* @brief Macro defines for SCT configuration register
|
|
*/
|
|
#define SCT_CONFIG_16BIT_COUNTER 0x00000000 /*!< Operate as 2 16-bit counters */
|
|
#define SCT_CONFIG_32BIT_COUNTER 0x00000001 /*!< Operate as 1 32-bit counter */
|
|
|
|
#define SCT_CONFIG_CLKMODE_BUSCLK (0x0 << 1) /*!< Bus clock */
|
|
#define SCT_CONFIG_CLKMODE_SCTCLK (0x1 << 1) /*!< SCT clock */
|
|
#define SCT_CONFIG_CLKMODE_INCLK (0x2 << 1) /*!< Input clock selected in CLKSEL field */
|
|
#define SCT_CONFIG_CLKMODE_INEDGECLK (0x3 << 1) /*!< Input clock edge selected in CLKSEL field */
|
|
|
|
#define SCT_CONFIG_NORELOADL_U (0x1 << 7) /*!< Operate as 1 32-bit counter */
|
|
#define SCT_CONFIG_NORELOADH (0x1 << 8) /*!< Operate as 1 32-bit counter */
|
|
|
|
/*
|
|
* @brief Macro defines for SCT control register
|
|
*/
|
|
#define COUNTUP_TO_LIMIT_THEN_CLEAR_TO_ZERO 0 /*!< Direction for low or unified counter */
|
|
#define COUNTUP_TO LIMIT_THEN_COUNTDOWN_TO_ZERO 1
|
|
|
|
#define SCT_CTRL_STOP_L (1 << 1) /*!< Stop low counter */
|
|
#define SCT_CTRL_HALT_L (1 << 2) /*!< Halt low counter */
|
|
#define SCT_CTRL_CLRCTR_L (1 << 3) /*!< Clear low or unified counter */
|
|
#define SCT_CTRL_BIDIR_L(x) (((x) & 0x01) << 4) /*!< Bidirectional bit */
|
|
#define SCT_CTRL_PRE_L(x) (((x) & 0xFF) << 5) /*!< Prescale clock for low or unified counter */
|
|
|
|
#define COUNTUP_TO_LIMIT_THEN_CLEAR_TO_ZERO 0 /*!< Direction for high counter */
|
|
#define COUNTUP_TO LIMIT_THEN_COUNTDOWN_TO_ZERO 1
|
|
#define SCT_CTRL_STOP_H (1 << 17) /*!< Stop high counter */
|
|
#define SCT_CTRL_HALT_H (1 << 18) /*!< Halt high counter */
|
|
#define SCT_CTRL_CLRCTR_H (1 << 19) /*!< Clear high counter */
|
|
#define SCT_CTRL_BIDIR_H(x) (((x) & 0x01) << 20)
|
|
#define SCT_CTRL_PRE_H(x) (((x) & 0xFF) << 21) /*!< Prescale clock for high counter */
|
|
|
|
/*
|
|
* @brief Macro defines for SCT Conflict resolution register
|
|
*/
|
|
#define SCT_RES_NOCHANGE (0)
|
|
#define SCT_RES_SET_OUTPUT (1)
|
|
#define SCT_RES_CLEAR_OUTPUT (2)
|
|
#define SCT_RES_TOGGLE_OUTPUT (3)
|
|
|
|
/**
|
|
* SCT Match register values enum
|
|
*/
|
|
typedef enum CHIP_SCT_MATCH_REG {
|
|
SCT_MATCH_0 = 0, /*!< SCT Match register 0 */
|
|
SCT_MATCH_1 = 1, /*!< SCT Match register 1 */
|
|
SCT_MATCH_2 = 2, /*!< SCT Match register 2 */
|
|
SCT_MATCH_3 = 3, /*!< SCT Match register 3 */
|
|
SCT_MATCH_4 = 4 /*!< SCT Match register 4 */
|
|
} CHIP_SCT_MATCH_REG_T;
|
|
|
|
/**
|
|
* SCT Event values enum
|
|
*/
|
|
typedef enum CHIP_SCT_EVENT {
|
|
SCT_EVT_0 = (1 << 0), /*!< Event 0 */
|
|
SCT_EVT_1 = (1 << 1), /*!< Event 1 */
|
|
SCT_EVT_2 = (1 << 2), /*!< Event 2 */
|
|
SCT_EVT_3 = (1 << 3), /*!< Event 3 */
|
|
SCT_EVT_4 = (1 << 4), /*!< Event 4 */
|
|
SCT_EVT_5 = (1 << 5) /*!< Event 5 */
|
|
} CHIP_SCT_EVENT_T;
|
|
|
|
/**
|
|
* @brief Configures the State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param value : The 32-bit CONFIG register value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_Config(LPC_SCT_T *pSCT, uint32_t value)
|
|
{
|
|
pSCT->CONFIG = value;
|
|
}
|
|
|
|
/**
|
|
* @brief Set or Clear the Control register
|
|
* @param pSCT : Pointer to SCT register block
|
|
* @param value : SCT Control register value
|
|
* @param ena : ENABLE - To set the fields specified by value
|
|
* : DISABLE - To clear the field specified by value
|
|
* @return Nothing
|
|
* Set or clear the control register bits as specified by the \a value
|
|
* parameter. If \a ena is set to ENABLE, the mentioned register fields
|
|
* will be set. If \a ena is set to DISABLE, the mentioned register
|
|
* fields will be cleared
|
|
*/
|
|
void Chip_SCT_SetClrControl(LPC_SCT_T *pSCT, uint32_t value, FunctionalState ena);
|
|
|
|
/**
|
|
* @brief Set the conflict resolution
|
|
* @param pSCT : Pointer to SCT register block
|
|
* @param outnum : Output number
|
|
* @param value : Output value
|
|
* - SCT_RES_NOCHANGE :No change
|
|
* - SCT_RES_SET_OUTPUT :Set output
|
|
* - SCT_RES_CLEAR_OUTPUT :Clear output
|
|
* - SCT_RES_TOGGLE_OUTPUT :Toggle output
|
|
* : SCT_RES_NOCHANGE
|
|
* : DISABLE - To clear the field specified by value
|
|
* @return Nothing
|
|
* Set conflict resolution for the output \a outnum
|
|
*/
|
|
void Chip_SCT_SetConflictResolution(LPC_SCT_T *pSCT, uint8_t outnum, uint8_t value);
|
|
|
|
/**
|
|
* @brief Set unified count value in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param count : The 32-bit count value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetCount(LPC_SCT_T *pSCT, uint32_t count)
|
|
{
|
|
pSCT->COUNT_U = count;
|
|
}
|
|
|
|
/**
|
|
* @brief Set lower count value in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param count : The 16-bit count value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetCountL(LPC_SCT_T *pSCT, uint16_t count)
|
|
{
|
|
pSCT->COUNT_L = count;
|
|
}
|
|
|
|
/**
|
|
* @brief Set higher count value in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param count : The 16-bit count value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetCountH(LPC_SCT_T *pSCT, uint16_t count)
|
|
{
|
|
pSCT->COUNT_H = count;
|
|
}
|
|
|
|
/**
|
|
* @brief Set unified match count value in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param n : Match register value
|
|
* @param value : The 32-bit match count value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetMatchCount(LPC_SCT_T *pSCT, CHIP_SCT_MATCH_REG_T n, uint32_t value)
|
|
{
|
|
pSCT->MATCH[n].U = value;
|
|
}
|
|
|
|
/**
|
|
* @brief Set unified match reload count value in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param n : Match register value
|
|
* @param value : The 32-bit match count reload value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetMatchReload(LPC_SCT_T *pSCT, CHIP_SCT_MATCH_REG_T n, uint32_t value)
|
|
{
|
|
pSCT->MATCHREL[n].U = value;
|
|
}
|
|
|
|
/**
|
|
* @brief Enable the interrupt for the specified event in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param evt : Event value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_EnableEventInt(LPC_SCT_T *pSCT, CHIP_SCT_EVENT_T evt)
|
|
{
|
|
pSCT->EVEN |= evt;
|
|
}
|
|
|
|
/**
|
|
* @brief Disable the interrupt for the specified event in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param evt : Event value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_DisableEventInt(LPC_SCT_T *pSCT, CHIP_SCT_EVENT_T evt)
|
|
{
|
|
pSCT->EVEN &= ~(evt);
|
|
}
|
|
|
|
/**
|
|
* @brief Clear the specified event flag in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param evt : Event value
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_ClearEventFlag(LPC_SCT_T *pSCT, CHIP_SCT_EVENT_T evt)
|
|
{
|
|
pSCT->EVFLAG |= evt;
|
|
}
|
|
|
|
/**
|
|
* @brief Set control register in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param value : Value (ORed value of SCT_CTRL_* bits)
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_SetControl(LPC_SCT_T *pSCT, uint32_t value)
|
|
{
|
|
pSCT->CTRL_U |= value;
|
|
}
|
|
|
|
/**
|
|
* @brief Clear control register in State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @param value : Value (ORed value of SCT_CTRL_* bits)
|
|
* @return Nothing
|
|
*/
|
|
STATIC INLINE void Chip_SCT_ClearControl(LPC_SCT_T *pSCT, uint32_t value)
|
|
{
|
|
pSCT->CTRL_U &= ~(value);
|
|
}
|
|
|
|
/**
|
|
* @brief Initializes the State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @return Nothing
|
|
*/
|
|
void Chip_SCT_Init(LPC_SCT_T *pSCT);
|
|
|
|
/**
|
|
* @brief Deinitializes the State Configurable Timer
|
|
* @param pSCT : The base of SCT peripheral on the chip
|
|
* @return Nothing
|
|
*/
|
|
void Chip_SCT_DeInit(LPC_SCT_T *pSCT);
|
|
|
|
/**
|
|
* @}
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* __SCT_11U6X_H_ */
|