ccbb5e84f9
Docs are here: http://tannewt-micropython.readthedocs.io/en/microcontroller/ It differs from upstream's machine in the following ways: * Python API is identical across ports due to code structure. (Lives in shared-bindings) * Focuses on abstracting common functionality (AnalogIn) and not representing structure (ADC). * Documentation lives with code making it easy to ensure they match. * Pin is split into references (board.D13 and microcontroller.pin.PA17) and functionality (DigitalInOut). * All nativeio classes claim underlying hardware resources when inited on construction, support Context Managers (aka with statements) and have deinit methods which release the claimed hardware. * All constructors take pin references rather than peripheral ids. Its up to the implementation to find hardware or throw and exception.
122 lines
4.2 KiB
C
122 lines
4.2 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2013, 2014 Damien P. George
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
#include <string.h>
|
|
|
|
#include "py/objproperty.h"
|
|
#include "py/runtime.h"
|
|
#include "shared-bindings/nativeio/AnalogOut.h"
|
|
|
|
//| .. currentmodule:: nativeio
|
|
//|
|
|
//| :class:`AnalogOut` -- output analog voltage
|
|
//| ============================================
|
|
//|
|
|
//| The AnalogOut is used to output analog values (a specific voltage).
|
|
//|
|
|
//| Example usage::
|
|
//|
|
|
//| import nativeio
|
|
//| from microcontroller import pin
|
|
//|
|
|
//| with nativeio.AnalogOut(pin.PA02) as dac: # output on pin PA02
|
|
//| dac.value = 32768 # makes PA02 1.65V
|
|
//|
|
|
|
|
//| .. class:: AnalogOut(pin)
|
|
//|
|
|
//| Use the AnalogOut on the given pin.
|
|
//|
|
|
//| :param ~microcontroller.Pin pin: the pin to output to
|
|
//|
|
|
STATIC mp_obj_t nativeio_analogout_make_new(const mp_obj_type_t *type, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args) {
|
|
// check arguments
|
|
mp_arg_check_num(n_args, n_kw, 1, MP_OBJ_FUN_ARGS_MAX, true);
|
|
|
|
nativeio_analogout_obj_t *self = m_new_obj(nativeio_analogout_obj_t);
|
|
self->base.type = &nativeio_analogout_type;
|
|
|
|
const mcu_pin_obj_t *pin = MP_OBJ_TO_PTR(args[0]);
|
|
|
|
common_hal_nativeio_analogout_construct(self, pin);
|
|
|
|
return self;
|
|
}
|
|
|
|
//| .. method:: deinit()
|
|
//|
|
|
//| Turn off the AnalogOut and release the pin for other use.
|
|
//|
|
|
STATIC mp_obj_t nativeio_analogout_deinit(mp_obj_t self_in) {
|
|
nativeio_analogout_obj_t *self = self_in;
|
|
|
|
common_hal_nativeio_analogout_deinit(self);
|
|
|
|
return mp_const_none;
|
|
}
|
|
STATIC MP_DEFINE_CONST_FUN_OBJ_1(nativeio_analogout_deinit_obj, nativeio_analogout_deinit);
|
|
|
|
//| .. attribute:: value
|
|
//|
|
|
//| The value on the analog pin. The value must be between 0 and 65535
|
|
//| inclusive (16-bit). Even if the underlying digital to analog converter
|
|
//| is lower resolution, the input must be scaled to be 16-bit.
|
|
//|
|
|
//| :return: the last value written
|
|
//| :rtype: int
|
|
//|
|
|
STATIC mp_obj_t nativeio_analogout_obj_set_value(mp_obj_t self_in, mp_obj_t value) {
|
|
nativeio_analogout_obj_t *self = MP_OBJ_TO_PTR(self_in);
|
|
common_hal_nativeio_analogout_set_value(self, mp_obj_get_int(value));
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(nativeio_analogout_set_value_obj, nativeio_analogout_obj_set_value);
|
|
|
|
mp_obj_property_t nativeio_analogout_value_obj = {
|
|
.base.type = &mp_type_property,
|
|
.proxy = {(mp_obj_t)&mp_const_none_obj,
|
|
(mp_obj_t)&nativeio_analogout_set_value_obj,
|
|
(mp_obj_t)&mp_const_none_obj},
|
|
};
|
|
|
|
STATIC const mp_rom_map_elem_t nativeio_analogout_locals_dict_table[] = {
|
|
// instance methods
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_deinit), (mp_obj_t)&nativeio_analogout_deinit_obj },
|
|
|
|
// Properties
|
|
{ MP_OBJ_NEW_QSTR(MP_QSTR_value), (mp_obj_t)&nativeio_analogout_value_obj },
|
|
};
|
|
|
|
STATIC MP_DEFINE_CONST_DICT(nativeio_analogout_locals_dict, nativeio_analogout_locals_dict_table);
|
|
|
|
const mp_obj_type_t nativeio_analogout_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_AnalogOut,
|
|
.make_new = nativeio_analogout_make_new,
|
|
.locals_dict = (mp_obj_t)&nativeio_analogout_locals_dict,
|
|
};
|