kopia lustrzana https://github.com/espressif/esp-idf
79 wiersze
2.1 KiB
C
79 wiersze
2.1 KiB
C
/*
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* SPDX-FileCopyrightText: 2016-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <stdlib.h>
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#include <ctype.h>
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#include "sdkconfig.h"
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#include "esp_types.h"
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#include "esp_log.h"
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#include "sys/lock.h"
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#include "soc/rtc.h"
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#include "soc/periph_defs.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/xtensa_api.h"
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#include "freertos/semphr.h"
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#include "freertos/timers.h"
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#include "esp_intr_alloc.h"
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#include "driver/rtc_io.h"
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#include "driver/rtc_cntl.h"
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#include "driver/gpio.h"
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#include "driver/adc.h"
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#include "esp_private/sar_periph_ctrl.h"
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#ifndef NDEBUG
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// Enable built-in checks in queue.h in debug builds
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#define INVARIANTS
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#endif
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#include "sys/queue.h"
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#include "hal/adc_types.h"
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#include "hal/adc_hal.h"
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#define ADC_GET_IO_NUM(periph, channel) (adc_channel_io_map[periph][channel])
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extern portMUX_TYPE rtc_spinlock; //TODO: Will be placed in the appropriate position after the rtc module is finished.
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#define ADC_ENTER_CRITICAL() portENTER_CRITICAL(&rtc_spinlock)
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#define ADC_EXIT_CRITICAL() portEXIT_CRITICAL(&rtc_spinlock)
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/*---------------------------------------------------------------
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HALL SENSOR
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---------------------------------------------------------------*/
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static int hall_sensor_get_value(void) //hall sensor without LNA
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{
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int hall_value;
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sar_periph_ctrl_adc_oneshot_power_acquire();
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ADC_ENTER_CRITICAL();
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/* disable other peripherals. */
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adc_ll_amp_disable();
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adc_ll_hall_enable();
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// set controller
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adc_ll_set_controller( ADC_NUM_1, ADC_LL_CTRL_RTC );
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hall_value = adc_hal_hall_convert();
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adc_ll_hall_disable();
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ADC_EXIT_CRITICAL();
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sar_periph_ctrl_adc_oneshot_power_release();
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return hall_value;
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}
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/**
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* To Be Deprecated
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*/
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extern esp_err_t adc_common_gpio_init(adc_unit_t adc_unit, adc_channel_t channel);
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int hall_sensor_read(void)
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{
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adc_common_gpio_init(ADC_UNIT_1, ADC1_CHANNEL_0);
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adc_common_gpio_init(ADC_UNIT_1, ADC1_CHANNEL_3);
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adc1_config_channel_atten(ADC1_CHANNEL_0, ADC_ATTEN_DB_0);
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adc1_config_channel_atten(ADC1_CHANNEL_3, ADC_ATTEN_DB_0);
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return hall_sensor_get_value();
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}
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