diff --git a/components/esp_hw_support/test_apps/rtc_clk/main/test_rtc_clk.c b/components/esp_hw_support/test_apps/rtc_clk/main/test_rtc_clk.c index 7254b6328f..49a7dc8dd3 100644 --- a/components/esp_hw_support/test_apps/rtc_clk/main/test_rtc_clk.c +++ b/components/esp_hw_support/test_apps/rtc_clk/main/test_rtc_clk.c @@ -1,5 +1,5 @@ /* - * SPDX-FileCopyrightText: 2021-2023 Espressif Systems (Shanghai) CO LTD + * SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ @@ -24,6 +24,7 @@ #include "esp_rom_sys.h" #include "esp_rom_uart.h" #include "test_utils.h" +#include "esp_random.h" #include "esp_sleep.h" #include "esp_system.h" #include "esp_private/esp_clk.h" @@ -119,6 +120,26 @@ TEST_CASE("RTC_SLOW_CLK sources calibration", "[rtc_clk]") #endif } +#if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C2 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S2 || CONFIG_IDF_TARGET_ESP32S3 +TEST_CASE("Test RTC_SLOW_CLK sources switching", "[rtc_clk]") +{ + soc_rtc_slow_clk_src_t clk_src_before_switch = rtc_clk_slow_src_get(); + soc_rtc_slow_clk_src_t switching_sources[] = {SOC_RTC_SLOW_CLK_SRC_RC_SLOW, SOC_RTC_SLOW_CLK_SRC_RC_FAST_D256}; + + for (uint32_t test_cnt = 0; test_cnt < 100; test_cnt++) { + uint32_t src_id = esp_random() % 2; + if (switching_sources[src_id] == SOC_RTC_SLOW_CLK_SRC_RC_FAST_D256) { + rtc_clk_8m_enable(true, true); + } + rtc_clk_slow_src_set(switching_sources[src_id]); + esp_rom_delay_us(10*1000); + TEST_ASSERT_EQUAL(switching_sources[src_id], rtc_clk_slow_src_get()); + } + rtc_clk_slow_src_set(clk_src_before_switch); + printf("done\n"); +} +#endif + /* The following two are not unit tests, but are added here to make it easy to * check the frequency of 150k/32k oscillators. The following two "tests" will * output either 32k or 150k clock to GPIO25.