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https://github.com/espressif/esp-idf.git
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69 lines
2.1 KiB
C
69 lines
2.1 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 "sdkconfig.h"
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "unity.h"
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#include "driver/sdm.h"
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#include "soc/soc_caps.h"
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#include "esp_attr.h"
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TEST_CASE("sdm_channel_install_uninstall", "[sdm]")
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{
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printf("install sdm channels exhaustively\r\n");
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sdm_config_t config = {
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.clk_src = SDM_CLK_SRC_DEFAULT,
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.sample_rate_hz = 1000000,
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.gpio_num = 0,
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};
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sdm_channel_handle_t chans[SOC_SDM_GROUPS][SOC_SDM_CHANNELS_PER_GROUP] = {};
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for (int i = 0; i < SOC_SDM_GROUPS; i++) {
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for (int j = 0; j < SOC_SDM_CHANNELS_PER_GROUP; j++) {
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TEST_ESP_OK(sdm_new_channel(&config, &chans[i][j]));
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}
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TEST_ESP_ERR(ESP_ERR_NOT_FOUND, sdm_new_channel(&config, &chans[0][0]));
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}
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printf("delete sdm channels\r\n");
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for (int i = 0; i < SOC_SDM_GROUPS; i++) {
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for (int j = 0; j < SOC_SDM_CHANNELS_PER_GROUP; j++) {
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TEST_ESP_OK(sdm_del_channel(chans[i][j]));
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}
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}
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}
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TEST_CASE("sdm_channel_set_pulse_density", "[sdm]")
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{
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const int sdm_chan_gpios[2] = {0, 2};
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sdm_config_t config = {
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.clk_src = SDM_CLK_SRC_DEFAULT,
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.sample_rate_hz = 1000000,
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};
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sdm_channel_handle_t chans[2] = {};
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for (size_t i = 0; i < 2; i++) {
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config.gpio_num = sdm_chan_gpios[i];
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TEST_ESP_OK(sdm_new_channel(&config, &chans[i]));
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// should see a ~250KHz (sample_rate/4) square wave
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TEST_ESP_OK(sdm_channel_set_pulse_density(chans[i], 0));
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TEST_ESP_OK(sdm_channel_enable(chans[i]));
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}
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vTaskDelay(pdMS_TO_TICKS(500));
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// can't delete the channel if the channel is in the enable state
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TEST_ESP_ERR(ESP_ERR_INVALID_STATE, sdm_del_channel(chans[0]));
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TEST_ESP_OK(sdm_channel_set_pulse_density(chans[0], 127));
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TEST_ESP_OK(sdm_channel_set_pulse_density(chans[1], -128));
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vTaskDelay(pdMS_TO_TICKS(500));
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for (size_t i = 0; i < 2; i++) {
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TEST_ESP_OK(sdm_channel_disable(chans[i]));
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TEST_ESP_OK(sdm_del_channel(chans[i]));
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}
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}
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