mac-rom-simm-programmer/hal/at90usb646/board_hw.h

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/*
* board_hw.h
*
* Created on: Nov 14, 2020
* Author: Doug
*
* Copyright (C) 2011-2020 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef HAL_AT90USB646_BOARD_HW_H_
#define HAL_AT90USB646_BOARD_HW_H_
#include "gpio_hw.h"
#include "../gpio.h"
#include "hardware.h"
#include "../usbcdc.h"
/** Gets the GPIO pin on the board that controls the status LED
*
* @return The status LED pin
*/
static inline GPIOPin Board_LEDPin(void)
{
return GPIO_PIN(GPIOD, 7);
}
/** Jumps to the bootloader
*
*/
static inline void Board_EnterBootloader(void)
{
// Insert a small delay to ensure that it arrives before rebooting.
DelayMS(1000);
// Done with the USB interface -- the bootloader will re-initialize it.
USBCDC_Disable();
// Disable interrupts so nothing weird happens...
DisableInterrupts();
// Wait a little bit to let everything settle and let the program
// close the port after the USB disconnect
DelayMS(2000);
// Jump to the correct bootloader address based on whether this is an
// AT90USB128x or AT90USB64x
if (IsAT90USB128x())
{
__asm__ __volatile__ ( "jmp 0x1E000" );
}
else
{
__asm__ __volatile__ ( "jmp 0xE000" );
}
}
#endif /* HAL_AT90USB646_BOARD_HW_H_ */