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esp-idf/components/driver/test/test_adc_common.c
Angus Gratton 5228d9f9ce esp32c3: Apply one-liner/small changes for ESP32-C3
2020-12-01 10:58:50 +11:00

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/*
Tests for the adc device driver
*/
#include "esp_system.h"
#include "driver/adc.h"
#include "driver/rtc_io.h"
#include "driver/gpio.h"
#include "unity.h"
#include "esp_system.h"
#include "esp_event.h"
#include "esp_wifi.h"
#include "esp_log.h"
#include "nvs_flash.h"
#include "test_utils.h"
#include "soc/adc_periph.h"
#if !TEMPORARY_DISABLED_FOR_TARGETS(ESP32S3,ESP32C3)
#include "driver/dac.h"
static const char *TAG = "test_adc";
#ifdef CONFIG_IDF_TARGET_ESP32
#define ADC1_TEST_WIDTH ADC_WIDTH_BIT_12
#define ADC2_TEST_WIDTH ADC_WIDTH_BIT_12
#elif defined CONFIG_IDF_TARGET_ESP32S2
#define ADC1_TEST_WIDTH ADC_WIDTH_BIT_13 //ESP32S2 only support 13 bit width
#define ADC2_TEST_WIDTH ADC_WIDTH_BIT_13 //ESP32S2 only support 13 bit width
#endif
#define ADC1_TEST_ATTEN ADC_ATTEN_DB_11
#define ADC2_TEST_ATTEN ADC_ATTEN_DB_11
#if CONFIG_IDF_TARGET_ESP32
#define ADC1_TEST_CHANNEL_NUM 8
#elif CONFIG_IDF_TARGET_ESP32S2
#define ADC1_TEST_CHANNEL_NUM 10
#endif
#define ADC2_TEST_CHANNEL_NUM 6
static const int adc1_ch[ADC1_TEST_CHANNEL_NUM] = {
ADC1_CHANNEL_0,
ADC1_CHANNEL_1,
ADC1_CHANNEL_2,
ADC1_CHANNEL_3,
ADC1_CHANNEL_4,
ADC1_CHANNEL_5,
ADC1_CHANNEL_6,
ADC1_CHANNEL_7,
#if CONFIG_IDF_TARGET_ESP32S2
ADC1_CHANNEL_8,
ADC1_CHANNEL_9,
#endif
};
static const int adc2_ch[ADC2_TEST_CHANNEL_NUM] = {
ADC2_CHANNEL_0,
ADC2_CHANNEL_1,
ADC2_CHANNEL_2,
ADC2_CHANNEL_3,
ADC2_CHANNEL_4,
ADC2_CHANNEL_5,
};
#define ADC_GET_IO_NUM(periph, channel) (adc_channel_io_map[periph][channel])
void adc_fake_tie_middle(adc_unit_t adc_unit, adc_channel_t channel)
{
gpio_num_t gpio_num = 0;
if (adc_unit & ADC_UNIT_1) {
gpio_num = ADC_GET_IO_NUM(0, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_en(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_en(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLUP_PULLDOWN));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_DISABLED));
}
if (adc_unit & ADC_UNIT_2) {
gpio_num = ADC_GET_IO_NUM(1, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_en(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_en(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLUP_PULLDOWN));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_DISABLED));
}
vTaskDelay(10 / portTICK_RATE_MS);
}
void adc_fake_tie_high(adc_unit_t adc_unit, adc_channel_t channel)
{
gpio_num_t gpio_num = 0;
if (adc_unit & ADC_UNIT_1) {
gpio_num = ADC_GET_IO_NUM(0, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_en(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_dis(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLUP_ONLY));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_OUTPUT_ONLY));
TEST_ESP_OK(rtc_gpio_set_level(gpio_num, 1));
}
if (adc_unit & ADC_UNIT_2) {
gpio_num = ADC_GET_IO_NUM(1, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_en(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_dis(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLUP_ONLY));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_OUTPUT_ONLY));
TEST_ESP_OK(rtc_gpio_set_level(gpio_num, 1));
}
vTaskDelay(10 / portTICK_RATE_MS);
}
void adc_fake_tie_low(adc_unit_t adc_unit, adc_channel_t channel)
{
gpio_num_t gpio_num = 0;
if (adc_unit & ADC_UNIT_1) {
gpio_num = ADC_GET_IO_NUM(0, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_dis(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_en(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLDOWN_ONLY));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_OUTPUT_ONLY));
TEST_ESP_OK(rtc_gpio_set_level(gpio_num, 0));
}
if (adc_unit & ADC_UNIT_2) {
gpio_num = ADC_GET_IO_NUM(1, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_dis(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_en(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_PULLDOWN_ONLY));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_OUTPUT_ONLY));
TEST_ESP_OK(rtc_gpio_set_level(gpio_num, 0));
}
vTaskDelay(10 / portTICK_RATE_MS);
}
void adc_io_normal(adc_unit_t adc_unit, adc_channel_t channel)
{
gpio_num_t gpio_num = 0;
if (adc_unit & ADC_UNIT_1) {
gpio_num = ADC_GET_IO_NUM(0, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_dis(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_dis(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_FLOATING));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_DISABLED));
}
if (adc_unit & ADC_UNIT_2) {
gpio_num = ADC_GET_IO_NUM(1, channel);
TEST_ESP_OK(rtc_gpio_init(gpio_num));
TEST_ESP_OK(rtc_gpio_pullup_dis(gpio_num));
TEST_ESP_OK(rtc_gpio_pulldown_dis(gpio_num));
TEST_ESP_OK(gpio_set_pull_mode(gpio_num, GPIO_FLOATING));
TEST_ESP_OK(rtc_gpio_set_direction(gpio_num, RTC_GPIO_MODE_DISABLED));
}
vTaskDelay(10 / portTICK_RATE_MS);
}
TEST_CASE("ADC1 rtc read", "[adc1]")
{
int adc1_val[ADC1_TEST_CHANNEL_NUM] = {0};
/* adc1 Configure */
adc1_config_width(ADC1_TEST_WIDTH);
ESP_LOGI(TAG, "ADC1 [CH - GPIO]:");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc1_config_channel_atten(adc1_ch[i], ADC1_TEST_ATTEN) );
ESP_LOGI(TAG, "[CH%d - IO%d]:", adc1_ch[i], ADC_GET_IO_NUM(0, adc1_ch[i]));
}
printf("ADC tie normal read: ");
vTaskDelay(10 / portTICK_RATE_MS);
/* adc Read */
printf("ADC1: ");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc1_val[i] = adc1_get_raw((adc1_channel_t)adc1_ch[i]);
printf("CH%d-%d ", adc1_ch[i], adc1_val[i]);
}
printf("\n");
/* tie high */
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_high(ADC_UNIT_1, adc1_ch[i]);
}
printf("ADC tie high read: ");
vTaskDelay(50 / portTICK_RATE_MS);
/* adc Read */
printf("ADC1: ");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc1_val[i] = adc1_get_raw((adc1_channel_t)adc1_ch[i]);
printf("CH%d-%d ", adc1_ch[i], adc1_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_EQUAL( adc1_val[i], 0x1fff );
#endif
}
printf("\n");
/* tie low */
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_low(ADC_UNIT_1, adc1_ch[i]);
}
printf("ADC tie low read: ");
vTaskDelay(50 / portTICK_RATE_MS);
/* adc Read */
printf("ADC1: ");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc1_val[i] = adc1_get_raw((adc1_channel_t)adc1_ch[i]);
printf("CH%d-%d ", adc1_ch[i], adc1_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_INT_WITHIN( 100, 0, adc1_val[i] );
#endif
}
printf("\n");
/* tie midedle */
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_middle(ADC_UNIT_1, adc1_ch[i]);
}
printf("ADC tie mid read: ");
vTaskDelay(50 / portTICK_RATE_MS);
/* adc Read */
printf("ADC1: ");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc1_val[i] = adc1_get_raw((adc1_channel_t)adc1_ch[i]);
printf("CH%d-%d ", adc1_ch[i], adc1_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_NOT_EQUAL( adc1_val[i], 0x1fff );
TEST_ASSERT_NOT_EQUAL( adc1_val[i], 0 );
#endif
}
printf("\n");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_io_normal(ADC_UNIT_1, adc1_ch[i]);
}
}
TEST_CASE("ADC2 rtc read", "[adc2]")
{
int adc2_val[ADC2_TEST_CHANNEL_NUM] = {0};
/* adc2 Configure */
ESP_LOGI(TAG, "ADC2 [CH - GPIO]:");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_config_channel_atten(adc2_ch[i], ADC2_TEST_ATTEN) );
ESP_LOGI(TAG, "[CH%d - IO%d]:", adc2_ch[i], ADC_GET_IO_NUM(1, adc2_ch[i]));
}
printf("ADC float read: ");
vTaskDelay(10 / portTICK_RATE_MS);
/* adc Read */
printf("ADC2: ");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_get_raw((adc2_channel_t)adc2_ch[i], ADC2_TEST_WIDTH, &adc2_val[i]) );
printf("CH%d-%d ", adc2_ch[i], adc2_val[i]);
}
printf("\n");
/* tie high */
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_high(ADC_UNIT_2, adc2_ch[i]);
}
printf("ADC tie high read: ");
vTaskDelay(10 / portTICK_RATE_MS);
/* adc Read */
printf("ADC2: ");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_get_raw((adc2_channel_t)adc2_ch[i], ADC2_TEST_WIDTH, &adc2_val[i]) );
printf("CH%d-%d ", adc2_ch[i], adc2_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_EQUAL( adc2_val[i], 0x1fff );
#endif
}
printf("\n");
/* tie low */
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_low(ADC_UNIT_2, adc2_ch[i]);
}
printf("ADC tie low read: ");
vTaskDelay(10 / portTICK_RATE_MS);
/* adc Read */
printf("ADC2: ");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_get_raw((adc2_channel_t)adc2_ch[i], ADC2_TEST_WIDTH, &adc2_val[i]) );
printf("CH%d-%d ", adc2_ch[i], adc2_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_INT_WITHIN( 100, 0, adc2_val[i] );
#endif
}
printf("\n");
/* tie midedle */
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_middle(ADC_UNIT_2, adc2_ch[i]);
}
printf("ADC tie middle read: ");
vTaskDelay(10 / portTICK_RATE_MS);
/* adc Read */
printf("ADC2: ");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_get_raw((adc2_channel_t)adc2_ch[i], ADC2_TEST_WIDTH, &adc2_val[i]) );
printf("CH%d-%d ", adc2_ch[i], adc2_val[i]);
#ifdef CONFIG_IDF_TARGET_ESP32S2
TEST_ASSERT_NOT_EQUAL( 0, adc2_val[i] );
TEST_ASSERT_NOT_EQUAL( 0x1fff, adc2_val[i] );
#endif
}
printf("\n");
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_io_normal(ADC_UNIT_1, adc1_ch[i]);
}
}
#include "touch_scope.h"
/**
* 0: ADC1 channels raw data debug.
* 1: ADC2 channels raw data debug.
*/
#define SCOPE_DEBUG_TYPE 1
#define SCOPE_DEBUG_CHANNEL_MAX (10)
#define SCOPE_DEBUG_ENABLE (0)
#define SCOPE_UART_BUADRATE (256000)
#define SCOPE_DEBUG_FREQ_MS (50)
/**
* Manual test: Capture ADC-DMA data and display it on the serial oscilloscope. Used to observe the stability of the data.
* Use step:
* 1. Call this function in `esp-idf/tools/unit-test-app/main/app_main.c`.
* 2. Use `ESP-Tuning Tool`(download from `www.espressif.com`) to capture.
* 3. The readings of multiple channels will be displayed on the tool.
*/
void test_adc_slope_debug(void)
{
float scope_temp[SCOPE_DEBUG_CHANNEL_MAX] = {0}; // max scope channel is 10.
test_tp_scope_debug_init(0, -1, -1, SCOPE_UART_BUADRATE);
#if SCOPE_DEBUG_TYPE == 0
/* adc1 Configure */
adc1_config_width(ADC1_TEST_WIDTH);
ESP_LOGI(TAG, "ADC1 [CH - GPIO] atten %d:", ADC1_TEST_ATTEN);
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc1_config_channel_atten(adc1_ch[i], ADC1_TEST_ATTEN) );
ESP_LOGI(TAG, "[CH%d - IO%d]", adc1_ch[i], ADC_GET_IO_NUM(0, adc1_ch[i]));
}
/* tie midedle */
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_middle(ADC_UNIT_1, adc1_ch[i]);
}
vTaskDelay(10 / portTICK_RATE_MS);
while (1) {
/* adc Read */
for (int i = 0; i < ADC1_TEST_CHANNEL_NUM; i++) {
scope_temp[i] = adc1_get_raw((adc1_channel_t)adc1_ch[i]);
}
test_tp_print_to_scope(scope_temp, ADC1_TEST_CHANNEL_NUM);
vTaskDelay(SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
}
#elif SCOPE_DEBUG_TYPE == 1
int adc2_val[ADC2_TEST_CHANNEL_NUM] = {0};
/* adc2 Configure */
ESP_LOGI(TAG, "ADC2 [CH - GPIO] atten %d:", ADC2_TEST_ATTEN);
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
TEST_ESP_OK( adc2_config_channel_atten(adc2_ch[i], ADC2_TEST_ATTEN) );
ESP_LOGI(TAG, "[CH%d - IO%d]:", adc2_ch[i], ADC_GET_IO_NUM(1, adc2_ch[i]));
}
/* tie midedle */
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
adc_fake_tie_middle(ADC_UNIT_2, adc2_ch[i]);
}
vTaskDelay(10 / portTICK_RATE_MS);
while (1) {
/* adc Read */
printf("ADC2: ");
for (int i = 0; i < ADC2_TEST_CHANNEL_NUM; i++) {
adc2_get_raw((adc2_channel_t)adc2_ch[i], ADC2_TEST_WIDTH, &adc2_val[i]);
scope_temp[i] = adc2_val[i];
}
test_tp_print_to_scope(scope_temp, ADC2_TEST_CHANNEL_NUM);
vTaskDelay(SCOPE_DEBUG_FREQ_MS / portTICK_RATE_MS);
}
#endif
}
#endif
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