72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
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* board_hw.h
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*
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* Created on: Nov 14, 2020
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* Author: Doug
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*
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* Copyright (C) 2011-2023 Doug Brown
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#ifndef HAL_AT90USB646_BOARD_HW_H_
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#define HAL_AT90USB646_BOARD_HW_H_
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#include "gpio_hw.h"
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#include "../gpio.h"
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#include "hardware.h"
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#include "../usbcdc.h"
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/** Gets the GPIO pin on the board that controls the status LED
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*
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* @return The status LED pin
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*/
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static inline GPIOPin Board_LEDPin(void)
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{
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return GPIO_PIN(GPIOD, 7);
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}
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/** Jumps to the bootloader
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*
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*/
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static inline void Board_EnterBootloader(void)
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{
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// Insert a small delay to ensure that it arrives before rebooting.
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DelayMS(1000);
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// Done with the USB interface -- the bootloader will re-initialize it.
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USBCDC_Disable();
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// Disable interrupts so nothing weird happens...
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DisableInterrupts();
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// Wait a little bit to let everything settle and let the program
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// close the port after the USB disconnect
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DelayMS(2000);
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// Jump to the correct bootloader address based on whether this is an
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// AT90USB128x or AT90USB64x
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if (IsAT90USB128x())
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{
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__asm__ __volatile__ ( "jmp 0x1E000" );
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}
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else
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{
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__asm__ __volatile__ ( "jmp 0xE000" );
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}
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}
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#endif /* HAL_AT90USB646_BOARD_HW_H_ */
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