kopia lustrzana https://github.com/espressif/esp-idf
485 wiersze
16 KiB
C
485 wiersze
16 KiB
C
/*
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* SPDX-FileCopyrightText: 2022-2023 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 <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "unity.h"
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#include "test_utils.h"
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#include "esp_log.h"
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#include "esp_err.h"
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#include "esp_cpu.h"
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#include "soc/adc_periph.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "esp_adc/adc_oneshot.h"
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#include "esp_adc/adc_continuous.h"
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#include "esp_adc/adc_filter.h"
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#include "test_common_adc.h"
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#include "idf_performance.h"
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__attribute__((unused)) static const char *TAG = "TEST_ADC";
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#if CONFIG_IDF_TARGET_ESP32
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#define TEST_STD_ADC1_CHANNEL0 ADC_CHANNEL_5
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#else
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#define TEST_STD_ADC1_CHANNEL0 ADC_CHANNEL_2
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#endif
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static int s_adc_count_size;
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static int *s_p_adc_count;
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static int s_adc_offset = -1;
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static int s_insert_point(uint32_t value)
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{
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const bool fixed_size = true;
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if (s_adc_offset < 0) {
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if (fixed_size) {
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TEST_ASSERT_GREATER_OR_EQUAL(4096, s_adc_count_size);
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s_adc_offset = 0; //Fixed to 0 because the array can hold all the data in 12 bits
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} else {
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s_adc_offset = MAX((int)value - s_adc_count_size/2, 0);
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}
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}
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if (!fixed_size && (value < s_adc_offset || value >= s_adc_offset + s_adc_count_size)) {
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TEST_ASSERT_GREATER_OR_EQUAL(s_adc_offset, value);
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TEST_ASSERT_LESS_THAN(s_adc_offset + s_adc_count_size, value);
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}
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s_p_adc_count[value - s_adc_offset] ++;
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return value - s_adc_offset;
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}
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static void s_reset_array(int array_size)
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{
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s_adc_count_size = array_size;
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s_p_adc_count = (int *)heap_caps_calloc(1, s_adc_count_size * sizeof(int), MALLOC_CAP_INTERNAL);
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TEST_ASSERT(s_p_adc_count);
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s_adc_offset = -1;
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}
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static void s_destroy_array(void)
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{
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free(s_p_adc_count);
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s_p_adc_count = NULL;
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s_adc_count_size = 0;
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}
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__attribute__((unused))
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static uint32_t s_get_average(void)
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{
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uint32_t sum = 0;
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int count = 0;
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for (int i = 0; i < s_adc_count_size; i++) {
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sum += s_p_adc_count[i] * (s_adc_offset+i);
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count += s_p_adc_count[i];
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}
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return sum/count;
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}
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static float s_print_summary(bool figure)
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{
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const int MAX_WIDTH=20;
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int max_count = 0;
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int start = -1;
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int end = -1;
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uint32_t sum = 0;
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int count = 0;
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for (int i = 0; i < s_adc_count_size; i++) {
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if (s_p_adc_count[i] > max_count) {
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max_count = s_p_adc_count[i];
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}
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if (s_p_adc_count[i] > 0 && start < 0) {
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start = i;
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}
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if (s_p_adc_count[i] > 0) {
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end = i;
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}
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count += s_p_adc_count[i];
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sum += s_p_adc_count[i] * (s_adc_offset+i);
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}
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if (figure) {
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for (int i = start; i <= end; i++) {
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printf("%4d ", i+s_adc_offset);
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int count = s_p_adc_count[i] * MAX_WIDTH / max_count;
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for (int j = 0; j < count; j++) {
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putchar('|');
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}
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printf(" %d\n", s_p_adc_count[i]);
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}
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}
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float average = (float)sum/count;
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float variation_square = 0;
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for (int i = start; i <= end; i ++) {
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if (s_p_adc_count[i] == 0) {
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continue;
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}
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float delta = i + s_adc_offset - average;
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variation_square += (delta * delta) * s_p_adc_count[i];
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}
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printf("%d points.\n", count);
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printf("average: %.1f\n", (float)sum/count);
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printf("std: %.2f\n", sqrt(variation_square/count));
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return sqrt(variation_square/count);
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}
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#if SOC_ADC_DMA_SUPPORTED
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/*---------------------------------------------------------------
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ADC Continuous Average / STD_Deviation Test
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---------------------------------------------------------------*/
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#if (SOC_ADC_DIGI_RESULT_BYTES == 2)
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#define ADC_TEST_OUTPUT_TYPE ADC_DIGI_OUTPUT_FORMAT_TYPE1
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#define EXAMPLE_ADC_GET_CHANNEL(result) ((result).type1.channel)
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#define EXAMPLE_ADC_GET_DATA(result) ((result).type1.data)
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#else
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#define ADC_TEST_OUTPUT_TYPE ADC_DIGI_OUTPUT_FORMAT_TYPE2
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#define EXAMPLE_ADC_GET_CHANNEL(result) ((result).type2.channel)
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#define EXAMPLE_ADC_GET_DATA(result) ((result).type2.data)
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#endif
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#define ADC_TEST_FREQ_HZ (50 * 1000)
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#define ADC_TEST_PKG_SIZE 512
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#define ADC_TEST_CNT 4096
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static bool IRAM_ATTR s_conv_done_cb(adc_continuous_handle_t handle, const adc_continuous_evt_data_t *edata, void *user_data)
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{
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BaseType_t mustYield = pdFALSE;
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TaskHandle_t task_handle = *(TaskHandle_t *)(user_data);
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//Notify that ADC continuous driver has done enough number of conversions
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vTaskNotifyGiveFromISR(task_handle, &mustYield);
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return (mustYield == pdTRUE);
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}
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static float test_adc_continuous_std(adc_atten_t atten, bool filter_en, int filter_coeff, bool is_performance_test)
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{
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uint8_t *result = heap_caps_calloc(1, ADC_TEST_CNT * SOC_ADC_DIGI_RESULT_BYTES, MALLOC_CAP_INTERNAL | MALLOC_CAP_8BIT | MALLOC_CAP_32BIT);
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TEST_ASSERT(result);
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bool print_figure = false;
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TaskHandle_t task_handle = xTaskGetCurrentTaskHandle();
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//-------------ADC Init---------------//
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adc_continuous_handle_t handle = NULL;
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adc_continuous_handle_cfg_t adc_config = {
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.max_store_buf_size = 4096,
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.conv_frame_size = ADC_TEST_PKG_SIZE,
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};
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TEST_ESP_OK(adc_continuous_new_handle(&adc_config, &handle));
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adc_continuous_evt_cbs_t cbs = {
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.on_conv_done = s_conv_done_cb,
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};
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TEST_ESP_OK(adc_continuous_register_event_callbacks(handle, &cbs, &task_handle));
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//-------------ADC Config---------------//
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adc_continuous_config_t dig_cfg = {
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.sample_freq_hz = ADC_TEST_FREQ_HZ,
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.conv_mode = ADC_CONV_SINGLE_UNIT_1,
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.format = ADC_TEST_OUTPUT_TYPE,
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};
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adc_digi_pattern_config_t adc_pattern[SOC_ADC_PATT_LEN_MAX] = {0};
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adc_pattern[0].atten = atten;
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adc_pattern[0].channel = TEST_STD_ADC1_CHANNEL0;
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adc_pattern[0].unit = ADC_UNIT_1;
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adc_pattern[0].bit_width = SOC_ADC_DIGI_MAX_BITWIDTH;
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dig_cfg.adc_pattern = adc_pattern;
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dig_cfg.pattern_num = 1;
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TEST_ESP_OK(adc_continuous_config(handle, &dig_cfg));
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#if SOC_ADC_DIG_IIR_FILTER_SUPPORTED
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adc_iir_filter_handle_t filter_hdl = NULL;
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if (filter_en) {
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adc_continuous_iir_filter_config_t filter_config = {
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.unit = ADC_UNIT_1,
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.channel = TEST_STD_ADC1_CHANNEL0,
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.coeff = filter_coeff,
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};
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TEST_ESP_OK(adc_new_continuous_iir_filter(handle, &filter_config, &filter_hdl));
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TEST_ESP_OK(adc_continuous_iir_filter_enable(filter_hdl));
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}
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#endif
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if (is_performance_test) {
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test_adc_set_io_middle(ADC_UNIT_1, TEST_STD_ADC1_CHANNEL0);
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}
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if (filter_en) {
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ESP_LOGI("TEST_ADC", "Test with atten: %d, filter coeff: %d", atten, filter_coeff);
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} else {
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ESP_LOGI("TEST_ADC", "Test with atten: %d, no filter", atten);
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}
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s_reset_array((1 << SOC_ADC_DIGI_MAX_BITWIDTH));
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TEST_ESP_OK(adc_continuous_start(handle));
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int remain_count = ADC_TEST_CNT;
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while (remain_count) {
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ulTaskNotifyTake(pdTRUE, portMAX_DELAY);
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int already_got = ADC_TEST_CNT - remain_count;
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uint32_t ret_num = 0;
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TEST_ESP_OK(adc_continuous_read(handle, result + already_got * SOC_ADC_DIGI_RESULT_BYTES, ADC_TEST_PKG_SIZE, &ret_num, 0));
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remain_count -= ret_num / SOC_ADC_DIGI_RESULT_BYTES;
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}
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adc_digi_output_data_t *p = (void*)result;
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for (int i = 0; i < ADC_TEST_CNT; i++) {
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TEST_ASSERT_EQUAL(TEST_STD_ADC1_CHANNEL0, EXAMPLE_ADC_GET_CHANNEL(p[i]));
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s_insert_point(EXAMPLE_ADC_GET_DATA(p[i]));
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}
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float std = s_print_summary(print_figure);
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TEST_ESP_OK(adc_continuous_stop(handle));
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#if SOC_ADC_DIG_IIR_FILTER_SUPPORTED
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if (filter_en) {
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TEST_ESP_OK(adc_continuous_iir_filter_disable(filter_hdl));
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TEST_ESP_OK(adc_del_continuous_iir_filter(filter_hdl));
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}
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#endif
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TEST_ESP_OK(adc_continuous_deinit(handle));
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ulTaskNotifyTake(pdTRUE, 0);
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s_destroy_array();
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free(result);
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return std;
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}
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TEST_CASE("ADC1 continuous raw average and std_deviation", "[adc_continuous][manual]")
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{
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for (int i = 0; i < TEST_ATTEN_NUMS; i ++) {
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#if SOC_ADC_DIG_IIR_FILTER_SUPPORTED
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//filter disabled
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test_adc_continuous_std(g_test_atten[i], false, 0, false);
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//filter with different coeffs
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for (int j = 0; j < TEST_FILTER_COEFF_NUMS; j ++) {
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test_adc_continuous_std(g_test_atten[i], true, g_test_filter_coeff[j], false);
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}
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#else
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//filter disabled
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test_adc_continuous_std(g_test_atten[i], false, 0, false);
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#endif
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}
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}
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TEST_CASE("ADC1 continuous std deviation performance, no filter", "[adc_continuous][performance]")
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{
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float std = test_adc_continuous_std(ADC_ATTEN_DB_11, false, 0, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_NO_FILTER, "%.2f", std);
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}
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#if SOC_ADC_DIG_IIR_FILTER_SUPPORTED
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TEST_CASE("ADC1 continuous std deviation performance, with filter", "[adc_continuous][performance]")
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{
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float std = test_adc_continuous_std(ADC_ATTEN_DB_11, false, 0, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_NO_FILTER, "%.2f", std);
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std = test_adc_continuous_std(ADC_ATTEN_DB_11, true, ADC_DIGI_IIR_FILTER_COEFF_2, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_FILTER_2, "%.2f", std);
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std = test_adc_continuous_std(ADC_ATTEN_DB_11, true, ADC_DIGI_IIR_FILTER_COEFF_4, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_FILTER_4, "%.2f", std);
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std = test_adc_continuous_std(ADC_ATTEN_DB_11, true, ADC_DIGI_IIR_FILTER_COEFF_8, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_FILTER_8, "%.2f", std);
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std = test_adc_continuous_std(ADC_ATTEN_DB_11, true, ADC_DIGI_IIR_FILTER_COEFF_16, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_FILTER_16, "%.2f", std);
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std = test_adc_continuous_std(ADC_ATTEN_DB_11, true, ADC_DIGI_IIR_FILTER_COEFF_64, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_CONTINUOUS_STD_ATTEN3_FILTER_64, "%.2f", std);
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}
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#endif //#if SOC_ADC_DIG_IIR_FILTER_SUPPORTED
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#endif //#if SOC_ADC_DMA_SUPPORTED
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#if CONFIG_IDF_TARGET_ESP32 || SOC_ADC_CALIBRATION_V1_SUPPORTED
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/*---------------------------------------------------------------
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ADC Oneshot Average / STD_Deviation Test
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---------------------------------------------------------------*/
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static float test_adc_oneshot_std(adc_atten_t atten, bool is_performance_test)
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{
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adc_channel_t channel = TEST_STD_ADC1_CHANNEL0;
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int raw = 0;
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bool print_figure = false;
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//-------------ADC1 Init---------------//
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adc_oneshot_unit_handle_t adc1_handle;
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adc_oneshot_unit_init_cfg_t init_config1 = {
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.unit_id = ADC_UNIT_1,
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.ulp_mode = ADC_ULP_MODE_DISABLE,
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};
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TEST_ESP_OK(adc_oneshot_new_unit(&init_config1, &adc1_handle));
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//-------------ADC Channel Config---------------//
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adc_oneshot_chan_cfg_t config = {
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.bitwidth = SOC_ADC_RTC_MAX_BITWIDTH,
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};
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//-------------ADC Calibration Init---------------//
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bool do_calibration = false;
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adc_cali_handle_t cali_handle = NULL;
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do_calibration = test_adc_calibration_init(ADC_UNIT_1, atten, ADC_BITWIDTH_DEFAULT, &cali_handle);
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if (!do_calibration) {
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ESP_LOGW(TAG, "calibration fail, jump calibration\n");
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}
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//-------------ADC1 Channel Config---------------//
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config.atten = atten;
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TEST_ESP_OK(adc_oneshot_config_channel(adc1_handle, channel, &config));
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ESP_LOGI("TEST_ADC", "Test with atten: %d", atten);
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s_reset_array((1 << SOC_ADC_RTC_MAX_BITWIDTH));
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if (is_performance_test) {
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test_adc_set_io_middle(ADC_UNIT_1, TEST_STD_ADC1_CHANNEL0);
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}
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float std;
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while (1) {
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for (int i = 0; i < s_adc_count_size; i++) {
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TEST_ESP_OK(adc_oneshot_read(adc1_handle, channel, &raw));
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s_insert_point(raw);
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}
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std = s_print_summary(print_figure);
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break;
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}
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if (do_calibration) {
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uint32_t raw = s_get_average();
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int voltage_mv = 0;
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TEST_ESP_OK(adc_cali_raw_to_voltage(cali_handle, raw, &voltage_mv));
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printf("Voltage = %d mV\n", voltage_mv);
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}
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s_destroy_array();
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TEST_ESP_OK(adc_oneshot_del_unit(adc1_handle));
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if (cali_handle) {
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test_adc_calibration_deinit(cali_handle);
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}
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return std;
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}
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TEST_CASE("ADC1 oneshot raw average and std_deviation", "[adc_oneshot][manual]")
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{
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for (int i = 0; i < TEST_ATTEN_NUMS; i++) {
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test_adc_oneshot_std(g_test_atten[i], false);
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}
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}
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TEST_CASE("ADC1 oneshot std_deviation performance", "[adc_oneshot][performance]")
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{
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float std = test_adc_oneshot_std(ADC_ATTEN_DB_11, true);
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TEST_PERFORMANCE_LESS_THAN(ADC_ONESHOT_STD_ATTEN3, "%.2f", std);
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}
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/*---------------------------------------------------------------
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ADC Calibration Speed
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---------------------------------------------------------------*/
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#define CPU_FREQ_MHZ CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ
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#define RECORD_TIME_PREPARE() uint32_t __t1, __t2
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#define RECORD_TIME_START() do {__t1 = esp_cpu_get_cycle_count();}while(0)
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#define RECORD_TIME_END(p_time) do{__t2 = esp_cpu_get_cycle_count(); *p_time = (__t2-__t1);}while(0)
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#define GET_US_BY_CCOUNT(t) ((double)t/CPU_FREQ_MHZ)
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//ADC Channels
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#if CONFIG_IDF_TARGET_ESP32
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#define ADC1_CALI_SPEED_TEST_CHAN0 ADC_CHANNEL_6
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#define ADC2_CALI_SPEED_TEST_CHAN0 ADC_CHANNEL_0
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#else
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#define ADC1_CALI_SPEED_TEST_CHAN0 ADC_CHANNEL_2
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#define ADC2_CALI_SPEED_TEST_CHAN0 ADC_CHANNEL_0
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#endif
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#define TIMES_PER_ATTEN 10
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static IRAM_ATTR NOINLINE_ATTR uint32_t get_cali_time_in_ccount(adc_cali_handle_t cali_handle, int adc_raw)
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{
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uint32_t time;
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int voltage = 0;
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RECORD_TIME_PREPARE();
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RECORD_TIME_START();
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adc_cali_raw_to_voltage(cali_handle, adc_raw, &voltage);
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RECORD_TIME_END(&time);
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return time;
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}
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static void s_adc_cali_speed(adc_unit_t unit_id, adc_channel_t channel)
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{
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//-------------ADC Calibration Init---------------//
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bool do_calibration = false;
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adc_cali_handle_t cali_handle[TEST_ATTEN_NUMS] = {};
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for (int i = 0; i < TEST_ATTEN_NUMS; i++) {
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do_calibration = test_adc_calibration_init(unit_id, g_test_atten[i], SOC_ADC_RTC_MAX_BITWIDTH, &cali_handle[i]);
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}
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if (!do_calibration) {
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ESP_LOGW(TAG, "no efuse burnt, jump test");
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} else {
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ESP_LOGI(TAG, "CPU FREQ is %dMHz", CPU_FREQ_MHZ);
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uint32_t adc_time_record[4][TIMES_PER_ATTEN] = {};
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int adc_raw = 0;
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|
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//-------------ADC Init---------------//
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adc_oneshot_unit_handle_t adc_handle;
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adc_oneshot_unit_init_cfg_t init_config = {
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.unit_id = unit_id,
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.ulp_mode = ADC_ULP_MODE_DISABLE,
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};
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TEST_ESP_OK(adc_oneshot_new_unit(&init_config, &adc_handle));
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|
|
|
//-------------ADC Channel Config---------------//
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|
adc_oneshot_chan_cfg_t config = {
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.bitwidth = SOC_ADC_RTC_MAX_BITWIDTH,
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|
};
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|
|
|
//atten0 ~ atten3
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for (int i = 0; i < TEST_ATTEN_NUMS; i++) {
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|
|
|
//-------------ADC Channel Config---------------//
|
|
config.atten = g_test_atten[i];
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TEST_ESP_OK(adc_oneshot_config_channel(adc_handle, channel, &config));
|
|
ESP_LOGI("TEST_ADC", "Test with atten: %d", g_test_atten[i]);
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|
|
|
for (int j = 0; j < TIMES_PER_ATTEN; j++) {
|
|
TEST_ESP_OK(adc_oneshot_read(adc_handle, channel, &adc_raw));
|
|
adc_time_record[i][j] = get_cali_time_in_ccount(cali_handle[i], adc_raw);
|
|
IDF_LOG_PERFORMANCE("ADC1 Cali time", "%d us", (int)GET_US_BY_CCOUNT(adc_time_record[i][j]));
|
|
}
|
|
}
|
|
|
|
TEST_ESP_OK(adc_oneshot_del_unit(adc_handle));
|
|
for (int i = 0; i < TEST_ATTEN_NUMS; i++) {
|
|
if (cali_handle[i]) {
|
|
test_adc_calibration_deinit(cali_handle[i]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_CASE("ADC1 Calibration Speed", "[adc][manual]")
|
|
{
|
|
s_adc_cali_speed(ADC_UNIT_1, ADC1_CALI_SPEED_TEST_CHAN0);
|
|
}
|
|
|
|
#if (SOC_ADC_PERIPH_NUM >= 2) && !CONFIG_IDF_TARGET_ESP32C3
|
|
//ESP32C3 ADC2 oneshot mode is not supported anymore
|
|
TEST_CASE("ADC2 Calibration Speed", "[adc][manual]")
|
|
{
|
|
s_adc_cali_speed(ADC_UNIT_2, ADC2_CALI_SPEED_TEST_CHAN0);
|
|
}
|
|
#endif //#if (SOC_ADC_PERIPH_NUM >= 2) && !CONFIG_IDF_TARGET_ESP32C3
|
|
|
|
#endif //#if CONFIG_IDF_TARGET_ESP32 || SOC_ADC_CALIBRATION_V1_SUPPORTED
|