LPCOpen Platform for LPC18XX/43XX microcontrollers  18XX43XX
LPCOpen Platform for the NXP LPC18XX/43XX family of Microcontrollers
dac_18xx_43xx.h
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1 /*
2  * @brief LPC18xx/43xx D/A conversion driver
3  *
4  * @note
5  * Copyright(C) NXP Semiconductors, 2012
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 licensor 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 __DAC_18XX_43XX_H_
33 #define __DAC_18XX_43XX_H_
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
47 typedef struct {
48  __IO uint32_t CR;
49  __IO uint32_t CTRL;
50  __IO uint32_t CNTVAL;
51 } LPC_DAC_T;
52 
56 #define DAC_VALUE(n) ((uint32_t) ((n & 0x3FF) << 6))
57 
62 #define DAC_BIAS_EN ((uint32_t) (1 << 16))
63 
64 #define DAC_CCNT_VALUE(n) ((uint32_t) (n & 0xffff))
65 
67 #define DAC_DBLBUF_ENA ((uint32_t) (1 << 1))
68 
69 #define DAC_CNT_ENA ((uint32_t) (1 << 2))
70 
71 #define DAC_DMA_ENA ((uint32_t) (1 << 3))
72 
73 #define DAC_DACCTRL_MASK ((uint32_t) (0x0F))
74 
78 typedef enum IP_DAC_CURRENT_OPT {
84 
92 void Chip_DAC_Init(LPC_DAC_T *pDAC);
93 
99 void Chip_DAC_DeInit(LPC_DAC_T *pDAC);
100 
107 void Chip_DAC_UpdateValue(LPC_DAC_T *pDAC, uint32_t dac_value);
108 
117 void Chip_DAC_SetBias(LPC_DAC_T *pDAC, uint32_t bias);
118 
130 {
131  uint32_t temp;
132 
133  temp = pDAC->CTRL & ~DAC_DACCTRL_MASK;
134  pDAC->CTRL = temp | dacFlags;
135 }
136 
143 STATIC INLINE void Chip_DAC_SetDMATimeOut(LPC_DAC_T *pDAC, uint32_t time_out)
144 {
145  pDAC->CNTVAL = DAC_CCNT_VALUE(time_out);
146 }
147 
154 {
155  return (pDAC->CTRL & 0x01) ? SET : RESET;
156 }
157 
162 #ifdef __cplusplus
163 }
164 #endif
165 
166 #endif /* __DAC_18XX_43XX_H_ */