forked from ARMmbed/mbed-os
-
Notifications
You must be signed in to change notification settings - Fork 0
/
analogout_api.h
104 lines (86 loc) · 2.54 KB
/
analogout_api.h
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
/** \addtogroup hal */
/** @{*/
/* mbed Microcontroller Library
* Copyright (c) 2006-2013 ARM Limited
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef MBED_ANALOGOUT_API_H
#define MBED_ANALOGOUT_API_H
#include "device.h"
#include "pinmap.h"
#if DEVICE_ANALOGOUT
#ifdef __cplusplus
extern "C" {
#endif
/** Analogout hal structure. dac_s is declared in the target's hal
*/
typedef struct dac_s dac_t;
/**
* \defgroup hal_analogout Analogout hal functions
* @{
*/
/** Initialize the analogout peripheral
*
* Configures the pin used by analogout.
* @param obj The analogout object to initialize
* @param pin The analogout pin name
*/
void analogout_init(dac_t *obj, PinName pin);
/** Release the analogout object
*
* Note: This is not currently used in the mbed-drivers
* @param obj The analogout object
*/
void analogout_free(dac_t *obj);
/** Set the output voltage, specified as a percentage (float)
*
* @param obj The analogin object
* @param value The floating-point output voltage to be set
*/
void analogout_write(dac_t *obj, float value);
/** Set the output voltage, specified as unsigned 16-bit
*
* @param obj The analogin object
* @param value The unsigned 16-bit output voltage to be set
*/
void analogout_write_u16(dac_t *obj, uint16_t value);
/** Read the current voltage value on the pin
*
* @param obj The analogin object
* @return A floating-point value representing the current voltage on the pin,
* measured as a percentage
*/
float analogout_read(dac_t *obj);
/** Read the current voltage value on the pin, as a normalized unsigned 16bit value
*
* @param obj The analogin object
* @return An unsigned 16-bit value representing the current voltage on the pin
*/
uint16_t analogout_read_u16(dac_t *obj);
/** Get the pins that support analogout
*
* Return a PinMap array of pins that support analogout. The
* array is terminated with {NC, NC, 0}.
*
* @return PinMap array
*/
const PinMap *analogout_pinmap(void);
/**@}*/
#ifdef __cplusplus
}
#endif
#endif
#endif
/** @}*/