mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
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Kevin Thomas
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/**
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* @file 0x02_blink.c
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* @brief Blink demonstration: toggle onboard LED every 500 ms
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* @author Kevin Thomas
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* @date 2025
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*
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* MIT License
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*
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* Copyright (c) 2025 Kevin Thomas
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* -----------------------------------------------------------------------------
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*
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* Demonstrates GPIO output control using the blink driver (blink.h / blink.c).
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* The onboard LED on GPIO 25 is toggled every BLINK_DELAY_MS milliseconds and
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* the current state is reported over UART.
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*
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* Wiring:
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* GPIO25 -> Onboard LED (no external wiring needed)
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*/
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#include <stdio.h>
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#include "pico/stdlib.h"
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#include "blink.h"
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#define LED_PIN 25
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#define BLINK_DELAY_MS 500
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/**
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* @brief Application entry point for the LED blink demo
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*
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* Initializes the onboard LED and enters an infinite loop that
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* toggles the LED state every BLINK_DELAY_MS milliseconds.
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*
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* @return int Does not return
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*/
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int main(void) {
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stdio_init_all();
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blink_init(LED_PIN);
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printf("Blink driver initialized on GPIO %d\r\n", LED_PIN);
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while (true) {
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blink_toggle(LED_PIN);
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printf("LED: %s\r\n", blink_get_state(LED_PIN) ? "ON" : "OFF");
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sleep_ms(BLINK_DELAY_MS);
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}
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}
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