mirror of https://github.com/ARMmbed/mbed-os.git
105 lines
2.5 KiB
C
105 lines
2.5 KiB
C
|
|
/** \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
|
|
|
|
/** @}*/
|