kopia lustrzana https://github.com/espressif/esp-idf
74 wiersze
2.3 KiB
C
74 wiersze
2.3 KiB
C
/*
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* SPDX-FileCopyrightText: 2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Unlicense OR CC0-1.0
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*/
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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/gpio.h"
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/**
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* NOTE: To run this special feature test case, a slope analog signal is needed.
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* A simple RC circuit used here to formate pin switches to continuos slop signal.
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*
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* +---------+
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* | |
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* | (intr)26|----------------+ C:1000uF
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* | | | ++ +
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* | (wave)27|______+-----+___+___|| |_____
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* | | +-----+ || | |
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* | ESP32 | R:10k ++ + |
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* | | |
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* | GND|------------------------------+
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* +---------+
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*
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* or you can connect your slop signals from signal generator to ESP32 pin
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* which enabled the hysteresis feature directly to have a test.
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**/
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static void test_gpio_hysteresis_intr_handler(void *args)
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{
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esp_rom_printf("%" PRIu32 "\n", ++ * ((uint32_t *)args));
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}
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// This case is now tested only manually
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TEST_CASE("GPIO Input hysteresis filter", "[gpio_filter][timeout=50][ignore]")
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{
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const gpio_num_t TEST_HYS_IO = 26;
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const gpio_num_t TEST_WAVE_IO = 27;
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uint32_t intr_cnt = 0;
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gpio_config_t gpio_cfg = {
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.pin_bit_mask = (1 << TEST_WAVE_IO),
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.mode = GPIO_MODE_OUTPUT,
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.pull_down_en = GPIO_PULLDOWN_ENABLE,
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};
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TEST_ESP_OK(gpio_config(&gpio_cfg));
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gpio_cfg.pin_bit_mask = 1 << TEST_HYS_IO;
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gpio_cfg.mode = GPIO_MODE_INPUT;
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gpio_cfg.intr_type = GPIO_INTR_ANYEDGE;
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gpio_cfg.hys_ctrl_mode = GPIO_HYS_SOFT_ENABLE;
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TEST_ESP_OK(gpio_config(&gpio_cfg));
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gpio_install_isr_service(0);
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gpio_isr_handler_add(TEST_HYS_IO, test_gpio_hysteresis_intr_handler, &intr_cnt);
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// generate 5 rising and falling slopes to test gpio interrupt
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for (uint8_t i = 0; i < 5; i++) {
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printf("----falling %dth\n", i);
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gpio_set_level(TEST_WAVE_IO, 0);
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vTaskDelay(1500);
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printf("----rising %dth\n", i);
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gpio_set_level(TEST_WAVE_IO, 1);
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vTaskDelay(1500);
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}
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gpio_isr_handler_remove(TEST_HYS_IO);
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gpio_uninstall_isr_service();
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// should shot ISR exactly 10 times
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TEST_ASSERT_UINT32_WITHIN(1, 10, intr_cnt);
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}
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