1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
|
/******************************************************************************
* The MIT License
*
* Copyright (c) 2010 Bryan Newbold.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*****************************************************************************/
/*
* See ../notes/dac.txt for more info
*/
/**
* @file dac.h
*/
#ifndef _DAC_H_
#define _DAC_H_
#ifdef __cplusplus
extern "C"{
#endif
#define DAC_BASE 0x40007400
typedef struct {
volatile uint32 CR;
volatile uint32 SWTRIGR;
volatile uint32 DHR12R1;
volatile uint32 DHR12L1;
volatile uint32 DHR8R1;
volatile uint32 DHR12R2;
volatile uint32 DHR12L2;
volatile uint32 DHR8R2;
volatile uint32 DHR12RD;
volatile uint32 DHR12LD;
volatile uint32 DHR8RD;
volatile uint32 DOR1;
volatile uint32 DOR2;
} DAC_Map;
// And here are the register bit ranges
#define DAC_CR_EN1 BIT(0)
#define DAC_CR_BOFF1 BIT(1)
#define DAC_CR_TEN1 BIT(2)
#define DAC_CR_TSEL1 (BIT(3) | BIT(4) | BIT(5))
#define DAC_CR_WAVE1 (BIT(6) | BIT(7))
#define DAC_CR_MAMP1 (BIT(8) | BIT(9) | BIT(10) | BIT(11))
#define DAC_CR_DMAEN1 BIT(12)
#define DAC_CR_EN2 BIT(16)
#define DAC_CR_BOFF2 BIT(17)
#define DAC_CR_TEN2 BIT(18)
#define DAC_CR_TSEL2 (BIT(19) | BIT(20) | BIT(21))
#define DAC_CR_WAVE2 (BIT(22) | BIT(23))
#define DAC_CR_MAMP2 (BIT(24) | BIT(25) | BIT(26) | BIT(27))
#define DAC_CR_DMAEN2 BIT(28)
#define DAC_SWTRIGR_SWTRIG1 BIT(0)
#define DAC_SWTRIGR_SWTRIG2 BIT(1)
#define DAC_DHR12R1_DACC1DHR 0x00000FFF
#define DAC_DHR12L1_DACC1DHR 0x0000FFF0
#define DAC_DHR8R1_DACC1DHR 0x000000FF
#define DAC_DHR12R2_DACC2DHR 0x00000FFF
#define DAC_DHR12L2_DACC2DHR 0x0000FFF0
#define DAC_DHR8R2_DACC2DHR 0x000000FF
#define DAC_DHR12RD_DACC1DHR 0x00000FFF
#define DAC_DHR12RD_DACC2DHR 0x0FFF0000
#define DAC_DHR12LD_DACC1DHR 0x0000FFF0
#define DAC_DHR12LD_DACC2DHR 0xFFF00000
#define DAC_DHR8RD_DACC1DHR 0x000000FF
#define DAC_DHR8RD_DACC2DHR 0x0000FF00
#define DAC_DOR1 0x00000FFF
#define DAC_DOR2 0x00000FFF
void dac_init(void);
void dac_write(uint8 chan, uint16 val);
#ifdef __cplusplus
} // extern "C"
#endif
#endif
|
