LPCOpen Platform for LPC18XX/43XX microcontrollers  18XX43XX
LPCOpen Platform for the NXP LPC18XX/43XX family of Microcontrollers
sct_pwm_18xx_43xx.h
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1 /*
2  * @brief LPC18xx_43xx State Configurable Timer (SCT/PWM) Chip driver
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2013
6  * All rights reserved.
7  *
8  * @par
9  * Software that is described herein is for illustrative purposes only
10  * which provides customers with programming information regarding the
11  * LPC products. This software is supplied "AS IS" without any warranties of
12  * any kind, and NXP Semiconductors and its licenser disclaim any and
13  * all warranties, express or implied, including all implied warranties of
14  * merchantability, fitness for a particular purpose and non-infringement of
15  * intellectual property rights. NXP Semiconductors assumes no responsibility
16  * or liability for the use of the software, conveys no license or rights under any
17  * patent, copyright, mask work right, or any other intellectual property rights in
18  * or to any products. NXP Semiconductors reserves the right to make changes
19  * in the software without notification. NXP Semiconductors also makes no
20  * representation or warranty that such application will be suitable for the
21  * specified use without further testing or modification.
22  *
23  * @par
24  * Permission to use, copy, modify, and distribute this software and its
25  * documentation is hereby granted, under NXP Semiconductors' and its
26  * licensor's relevant copyrights in the software, without fee, provided that it
27  * is used in conjunction with NXP Semiconductors microcontrollers. This
28  * copyright, permission, and disclaimer notice must appear in all copies of
29  * this code.
30  */
31 
32 #ifndef __SCT_PWM_18XX_43XX_H_
33 #define __SCT_PWM_18XX_43XX_H_
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
57 {
58  return pSCT->MATCHREL[0].U;
59 }
60 
71 STATIC INLINE uint32_t Chip_SCTPWM_PercentageToTicks(LPC_SCT_T *pSCT, uint8_t percent)
72 {
73  return (Chip_SCTPWM_GetTicksPerCycle(pSCT) * percent) / 100;
74 }
75 
86 STATIC INLINE uint32_t Chip_SCTPWM_GetDutyCycle(LPC_SCT_T *pSCT, uint8_t index)
87 {
88  return pSCT->MATCHREL[index].U;
89 }
90 
103 STATIC INLINE void Chip_SCTPWM_SetDutyCycle(LPC_SCT_T *pSCT, uint8_t index, uint32_t ticks)
104 {
105  Chip_SCT_SetMatchReload(pSCT, (CHIP_SCT_MATCH_REG_T)index, ticks);
106 }
107 
114 {
115  Chip_SCT_Init(pSCT);
116 }
117 
130 {
132 }
133 
140 {
141  /* Stop SCT */
143 
144  /* Clear the counter */
146 }
147 
154 void Chip_SCTPWM_SetRate(LPC_SCT_T *pSCT, uint32_t freq);
155 
167 void Chip_SCTPWM_SetOutPin(LPC_SCT_T *pSCT, uint8_t index, uint8_t pin);
168 
173 #ifdef __cplusplus
174 }
175 
176 #endif
177 
178 #endif /* __SCT_PWM_18XX_43XX_H_ */