f5da77b5ce
It suuports 1 channel @ 10 bit for SAMD21, 2 channels @ 12 bit for SAMD51.
Instantiation by:
dac = machine.DAC(ch) # 0 or 1
Method write:
dac.write(value)
The output voltage range is 0..Vdd.
92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
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* This file is part of the MicroPython 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) 2022 Robert Hammelrath
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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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* This file initialises provides and checks pin capabilities as required
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* for USART, I2C, SPI, PWM, ADC
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*
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*/
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#if defined(MCU_SAMD21)
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typedef struct {
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uint8_t pin_id;
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uint8_t eic;
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uint8_t adc0;
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uint8_t sercom1;
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uint8_t sercom2;
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uint8_t tcc1;
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uint8_t tcc2;
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} pin_af_t;
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#define ALT_FCT_TC 4
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#define ALT_FCT_TCC1 4
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#define ALT_FCT_TCC2 5
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#elif defined(MCU_SAMD51)
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typedef struct {
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uint8_t pin_id;
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uint8_t eic;
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uint8_t adc0;
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uint8_t adc1;
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uint8_t sercom1;
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uint8_t sercom2;
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uint8_t tc;
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uint8_t tcc1;
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uint8_t tcc2;
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} pin_af_t;
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#define ALT_FCT_TC 4
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#define ALT_FCT_TCC1 5
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#define ALT_FCT_TCC2 6
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#endif
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typedef struct _sercom_pad_config_t {
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uint8_t alt_fct;
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uint8_t pad_nr;
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} sercom_pad_config_t;
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typedef struct _adc_config_t {
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uint8_t device;
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uint8_t channel;
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} adc_config_t;
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typedef struct _pwm_config_t {
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uint8_t alt_fct;
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uint8_t device_channel;
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} pwm_config_t;
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#define ALT_FCT_EIC 0
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#define ALT_FCT_ADC 1
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#define ALT_FCT_DAC 1
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#define ALT_FCT_SERCOM1 2
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#define ALT_FCT_SERCOM2 3
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sercom_pad_config_t get_sercom_config(int pin_id, uint8_t sercom);
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adc_config_t get_adc_config(int pin_id, int32_t flag);
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pwm_config_t get_pwm_config(int pin_id, int wanted_dev, uint8_t used_dev[]);
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const pin_af_t *get_pin_af_info(int pin_id);
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