mac-rom-simm-programmer/hal/at90usb646/board.c

/*
 * board.c
 *
 *  Created on: Nov 15, 2020
 *      Author: Doug
 *
 * Copyright (C) 2011-2023 Doug Brown
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 */

#include "board_hw.h"
#include <avr/io.h>

/// Whether we detected that the board had a brownout event
static bool brownout = false;

/** Initializes any board hardware-specific stuff
 *
 */
void Board_Init(void)
{
	// Figure out if a brownout occurred
	if (MCUSR & (1 << BORF))
	{
		MCUSR = 0;
		brownout = true;
	}
}

/** Determines if a brownout was detected at startup
 *
 * @return True if a brownout was detected
 */
bool Board_BrownoutDetected(void)
{
	return brownout;
}