LPCOpen Platform for LPC18XX/43XX microcontrollers
18XX43XX
LPCOpen Platform for the NXP LPC18XX/43XX family of Microcontrollers
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sct_pwm_18xx_43xx.h
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/*
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* @brief LPC18xx_43xx State Configurable Timer (SCT/PWM) Chip driver
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*
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* @note
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* Copyright(C) NXP Semiconductors, 2013
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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 licenser 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 __SCT_PWM_18XX_43XX_H_
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#define __SCT_PWM_18XX_43XX_H_
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#ifdef __cplusplus
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extern
"C"
{
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#endif
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STATIC
INLINE
uint32_t
Chip_SCTPWM_GetTicksPerCycle
(
LPC_SCT_T
*pSCT)
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{
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return
pSCT->
MATCHREL
[0].U;
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}
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STATIC
INLINE
uint32_t
Chip_SCTPWM_PercentageToTicks
(
LPC_SCT_T
*pSCT, uint8_t percent)
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{
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return
(
Chip_SCTPWM_GetTicksPerCycle
(pSCT) * percent) / 100;
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}
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STATIC
INLINE
uint32_t
Chip_SCTPWM_GetDutyCycle
(
LPC_SCT_T
*pSCT, uint8_t index)
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{
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return
pSCT->
MATCHREL
[index].U;
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}
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STATIC
INLINE
void
Chip_SCTPWM_SetDutyCycle
(
LPC_SCT_T
*pSCT, uint8_t index, uint32_t ticks)
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{
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Chip_SCT_SetMatchReload
(pSCT, (
CHIP_SCT_MATCH_REG_T
)index, ticks);
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}
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STATIC
INLINE
void
Chip_SCTPWM_Init
(
LPC_SCT_T
*pSCT)
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{
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Chip_SCT_Init
(pSCT);
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}
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STATIC
INLINE
void
Chip_SCTPWM_Start
(
LPC_SCT_T
*pSCT)
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{
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Chip_SCT_ClearControl
(pSCT,
SCT_CTRL_HALT_L
|
SCT_CTRL_HALT_H
);
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}
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STATIC
INLINE
void
Chip_SCTPWM_Stop
(
LPC_SCT_T
*pSCT)
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{
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/* Stop SCT */
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Chip_SCT_SetControl
(pSCT,
SCT_CTRL_HALT_L
|
SCT_CTRL_HALT_H
);
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/* Clear the counter */
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Chip_SCT_SetControl
(pSCT,
SCT_CTRL_CLRCTR_L
|
SCT_CTRL_CLRCTR_H
);
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}
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void
Chip_SCTPWM_SetRate
(
LPC_SCT_T
*pSCT, uint32_t freq);
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void
Chip_SCTPWM_SetOutPin
(
LPC_SCT_T
*pSCT, uint8_t index, uint8_t pin);
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#ifdef __cplusplus
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}
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#endif
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#endif
/* __SCT_PWM_18XX_43XX_H_ */
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