34 lines
941 B
C
34 lines
941 B
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 <stdint.h>
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#include <stdbool.h>
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#include "ulp_lp_core.h"
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#include "ulp_lp_core_utils.h"
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#include "ulp_lp_core_gpio.h"
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#define BLINK_PIN LP_IO_NUM_3 // Define the GPIO pin connected to the LED
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#define BLINK_DELAY_MS 1000 // Define the delay in milliseconds between toggles
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// Global variables can be accessed from the main program
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volatile bool ulp_led_state;
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int main(void)
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{
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// Initialize the GPIO pin as output
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ulp_lp_core_gpio_init(BLINK_PIN);
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ulp_lp_core_gpio_output_enable(BLINK_PIN);
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// Toggle the LED state
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ulp_led_state = !ulp_led_state;
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ulp_lp_core_gpio_set_level(BLINK_PIN, (int)ulp_led_state);
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// Delay for BLINK_DELAY_MS
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ulp_lp_core_delay_us(BLINK_DELAY_MS * 1000);
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/* ulp_lp_core_halt() is called automatically when main exits */
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return 0;
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} |