LPCOpen Platform for LPC18XX/43XX microcontrollers: C:/w/lpcopen_docs/software/lpc_core/lpc_chip/chip_18xx_43xx/dac_18xx_43xx.h Source File

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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 {
79 DAC_MAX_UPDATE_RATE_1MHz = 0,
81 DAC_MAX_UPDATE_RATE_400kHz
83 } DAC_CURRENT_OPT_T;
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
129 STATIC INLINE void Chip_DAC_ConfigDAConverterControl(LPC_DAC_T *pDAC, uint32_t dacFlags)
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
153 STATIC INLINE IntStatus Chip_DAC_GetIntStatus(LPC_DAC_T *pDAC)
154 {
155 return (pDAC->CTRL & 0x01) ? SET : RESET;
156 }
157
162 #ifdef __cplusplus
163 }
164 #endif
165
166 #endif /* __DAC_18XX_43XX_H_ */