alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 20:41:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

adc_cali: supported channel compensation of adc calibration on esp32c6

Browse Source
This commit is contained in:
laokaiyao
2023-05-05 19:56:44 +08:00
parent 3550a2d185
commit ffb40a89d9
32 changed files with 366 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
examples/peripherals/adc/oneshot_read/main/oneshot_read_main.c
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -49,7 +49,7 @@ const static char *TAG = "EXAMPLE";
static int adc_raw[2][10];
static int voltage[2][10];
static bool example_adc_calibration_init(adc_unit_t unit, adc_atten_t atten, adc_cali_handle_t *out_handle);
static bool example_adc_calibration_init(adc_unit_t unit, adc_channel_t channel, adc_atten_t atten, adc_cali_handle_t *out_handle);
static void example_adc_calibration_deinit(adc_cali_handle_t handle);
@@ -71,8 +71,10 @@ void app_main(void)
ESP_ERROR_CHECK(adc_oneshot_config_channel(adc1_handle, EXAMPLE_ADC1_CHAN1, &config));
//-------------ADC1 Calibration Init---------------//
adc_cali_handle_t adc1_cali_handle = NULL;
bool do_calibration1 = example_adc_calibration_init(ADC_UNIT_1, EXAMPLE_ADC_ATTEN, &adc1_cali_handle);
adc_cali_handle_t adc1_cali_chan0_handle = NULL;
adc_cali_handle_t adc1_cali_chan1_handle = NULL;
bool do_calibration1_chan0 = example_adc_calibration_init(ADC_UNIT_1, EXAMPLE_ADC1_CHAN0, EXAMPLE_ADC_ATTEN, &adc1_cali_chan0_handle);
bool do_calibration1_chan1 = example_adc_calibration_init(ADC_UNIT_1, EXAMPLE_ADC1_CHAN1, EXAMPLE_ADC_ATTEN, &adc1_cali_chan1_handle);
#if EXAMPLE_USE_ADC2
@@ -86,7 +88,7 @@ void app_main(void)
//-------------ADC2 Calibration Init---------------//
adc_cali_handle_t adc2_cali_handle = NULL;
bool do_calibration2 = example_adc_calibration_init(ADC_UNIT_2, EXAMPLE_ADC_ATTEN, &adc2_cali_handle);
bool do_calibration2 = example_adc_calibration_init(ADC_UNIT_2, EXAMPLE_ADC2_CHAN0, EXAMPLE_ADC_ATTEN, &adc2_cali_handle);
//-------------ADC2 Config---------------//
ESP_ERROR_CHECK(adc_oneshot_config_channel(adc2_handle, EXAMPLE_ADC2_CHAN0, &config));
@@ -95,16 +97,16 @@ void app_main(void)
while (1) {
ESP_ERROR_CHECK(adc_oneshot_read(adc1_handle, EXAMPLE_ADC1_CHAN0, &adc_raw[0][0]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Raw Data: %d", ADC_UNIT_1 + 1, EXAMPLE_ADC1_CHAN0, adc_raw[0][0]);
if (do_calibration1) {
ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc1_cali_handle, adc_raw[0][0], &voltage[0][0]));
if (do_calibration1_chan0) {
ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc1_cali_chan0_handle, adc_raw[0][0], &voltage[0][0]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Cali Voltage: %d mV", ADC_UNIT_1 + 1, EXAMPLE_ADC1_CHAN0, voltage[0][0]);
}
vTaskDelay(pdMS_TO_TICKS(1000));
ESP_ERROR_CHECK(adc_oneshot_read(adc1_handle, EXAMPLE_ADC1_CHAN1, &adc_raw[0][1]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Raw Data: %d", ADC_UNIT_1 + 1, EXAMPLE_ADC1_CHAN1, adc_raw[0][1]);
if (do_calibration1) {
ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc1_cali_handle, adc_raw[0][1], &voltage[0][1]));
if (do_calibration1_chan1) {
ESP_ERROR_CHECK(adc_cali_raw_to_voltage(adc1_cali_chan1_handle, adc_raw[0][1], &voltage[0][1]));
ESP_LOGI(TAG, "ADC%d Channel[%d] Cali Voltage: %d mV", ADC_UNIT_1 + 1, EXAMPLE_ADC1_CHAN1, voltage[0][1]);
}
vTaskDelay(pdMS_TO_TICKS(1000));
@@ -122,8 +124,11 @@ void app_main(void)
//Tear Down
ESP_ERROR_CHECK(adc_oneshot_del_unit(adc1_handle));
if (do_calibration1) {
example_adc_calibration_deinit(adc1_cali_handle);
if (do_calibration1_chan0) {
example_adc_calibration_deinit(adc1_cali_chan0_handle);
}
if (do_calibration1_chan1) {
example_adc_calibration_deinit(adc1_cali_chan1_handle);
}
#if EXAMPLE_USE_ADC2
@@ -138,7 +143,7 @@ void app_main(void)
/*---------------------------------------------------------------
ADC Calibration
---------------------------------------------------------------*/
static bool example_adc_calibration_init(adc_unit_t unit, adc_atten_t atten, adc_cali_handle_t *out_handle)
static bool example_adc_calibration_init(adc_unit_t unit, adc_channel_t channel, adc_atten_t atten, adc_cali_handle_t *out_handle)
{
adc_cali_handle_t handle = NULL;
esp_err_t ret = ESP_FAIL;
@@ -149,6 +154,7 @@ static bool example_adc_calibration_init(adc_unit_t unit, adc_atten_t atten, adc
ESP_LOGI(TAG, "calibration scheme version is %s", "Curve Fitting");
adc_cali_curve_fitting_config_t cali_config = {
.unit_id = unit,
.chan = channel,
.atten = atten,
.bitwidth = ADC_BITWIDTH_DEFAULT,
};