68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdio.h>
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#include <string.h>
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#include "py/nlr.h"
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#include "py/runtime.h"
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#include "py/binary.h"
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#include "py/mphal.h"
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#include "common-hal/microcontroller/__init__.h"
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#include "shared-bindings/analogio/AnalogIn.h"
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#include "supervisor/shared/translate.h"
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#include "user_interface.h"
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void common_hal_analogio_analogin_construct(analogio_analogin_obj_t* self,
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const mcu_pin_obj_t *pin) {
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if (pin != &pin_TOUT) {
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nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_ValueError, translate("Pin %q does not have ADC capabilities"), pin->name));
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}
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claim_pin(pin);
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}
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bool common_hal_analogio_analogin_deinited(analogio_analogin_obj_t* self) {
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return self->deinited;
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}
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void common_hal_analogio_analogin_deinit(analogio_analogin_obj_t* self) {
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if (common_hal_analogio_analogin_deinited(self)) {
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return;
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}
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reset_pin(&pin_TOUT);
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self->deinited = true;
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}
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uint16_t common_hal_analogio_analogin_get_value(analogio_analogin_obj_t *self) {
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// ADC is 10 bit so shift by 6 to make it 16-bit.
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return system_adc_read() << 6;
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}
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float common_hal_analogio_analogin_get_reference_voltage(analogio_analogin_obj_t *self) {
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return 1.0f;
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}
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