mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-07-31 08:07:26 +02:00
Kevin Thomas
c46bcba401
Public function docstrings belong exclusively in .h headers per coding convention. Only static helper functions and static variables retain docstrings in .c files. Removed 413 duplicate docstrings across 185 files (15 CBM + 15 C SDK projects). All 30 projects rebuild with zero errors.
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/**
|
|
******************************************************************************
|
|
* @file main.c
|
|
* @author Kevin Thomas
|
|
* @brief Watchdog feed demonstration.
|
|
*
|
|
* Enables the watchdog with a 3-second timeout and feeds it
|
|
* every 1 second. Reports whether the system booted from a
|
|
* watchdog reset or a normal power-on.
|
|
*
|
|
* Wiring:
|
|
* GPIO0 -> UART TX (USB-to-UART adapter RX)
|
|
* GPIO1 -> UART RX (USB-to-UART adapter TX)
|
|
* No external components required
|
|
*
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2026 Kevin Thomas.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "rp2350_watchdog.h"
|
|
#include "rp2350_uart.h"
|
|
#include "rp2350_delay.h"
|
|
|
|
/**
|
|
* @brief Print the reset reason over UART.
|
|
* @retval None
|
|
*/
|
|
static void _print_reset_reason(void)
|
|
{
|
|
if (watchdog_caused_reboot())
|
|
uart_puts("System rebooted by watchdog timeout\r\n");
|
|
else
|
|
uart_puts("Normal power-on reset\r\n");
|
|
}
|
|
|
|
/**
|
|
* @brief Feed the watchdog, report over UART, and delay 1 second.
|
|
* @retval None
|
|
*/
|
|
static void _feed_and_report(void)
|
|
{
|
|
watchdog_feed();
|
|
uart_puts("Watchdog fed\r\n");
|
|
delay_ms(1000);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
_print_reset_reason();
|
|
watchdog_enable(3000);
|
|
uart_puts("Watchdog enabled (3s timeout). Feeding every 1s...\r\n");
|
|
while (1)
|
|
_feed_and_report();
|
|
}
|