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79 lines
1.8 KiB
C
79 lines
1.8 KiB
C
/*
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* hardware.h
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*
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* Created on: Dec 4, 2011
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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
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef HAL_AT90USB646_HARDWARE_H_
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#define HAL_AT90USB646_HARDWARE_H_
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#include <avr/boot.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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/** Disables interrupts
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*
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*/
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static inline void DisableInterrupts(void)
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{
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cli();
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}
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/** Enables interrupts
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*
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*/
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static inline void EnableInterrupts(void)
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{
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sei();
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}
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/** Blocks for the specified number of milliseconds
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*
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* @param ms The number of milliseconds to wait
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*/
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static inline void DelayMS(uint16_t ms)
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{
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_delay_ms(ms);
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}
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/** Blocks for the specified number of microseconds
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*
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* @param us The number of microseconds to wait
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*/
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static inline void DelayUS(uint16_t us)
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{
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_delay_us(us);
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}
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/** Determines if this code is running on an AT90USB128x or AT90USB64x
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*
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* @return True if it's an AT90USB128x, false if AT90USB64x
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*/
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static inline bool IsAT90USB128x(void)
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{
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// Read the device signature byte 2 to determine whether this is an
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// AT90USB128x or AT90USB64x.
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return boot_signature_byte_get(0x0002) == 0x97;
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}
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#endif /* HAL_AT90USB646_HARDWARE_H_ */
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