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82 lines
1.9 KiB
82 lines
1.9 KiB
/*! \file avrlibdefs.h \brief AVRlib global defines and macros. */
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//*****************************************************************************
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//
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// File Name : 'avrlibdefs.h'
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// Title : AVRlib global defines and macros include file
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// Author : Pascal Stang
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// Created : 7/12/2001
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// Revised : 9/30/2002
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// Version : 1.1
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// Target MCU : Atmel AVR series
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// Editor Tabs : 4
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//
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// Description : This include file is designed to contain items useful to all
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// code files and projects, regardless of specific implementation.
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//
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// This code is distributed under the GNU Public License
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// which can be found at http://www.gnu.org/licenses/gpl.txt
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//
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//*****************************************************************************
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#ifndef AVRLIBDEFS_H
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#define AVRLIBDEFS_H
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#include "wiring.h"
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#include "wiring_private.h"
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// Code compatibility to new AVR-libc
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// outb(), inb(), inw(), outw(), BV(), sbi(), cbi(), sei(), cli()
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#ifndef outb
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#define outb(addr, data) addr = (data)
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#endif
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#ifndef inb
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#define inb(addr) (addr)
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#endif
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#ifndef outw
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#define outw(addr, data) addr = (data)
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#endif
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#ifndef inw
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#define inw(addr) (addr)
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#endif
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#ifndef BV
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#define BV(bit) (1<<(bit))
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#endif
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#ifndef cbi
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#define cbi(reg,bit) reg &= ~(BV(bit))
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#endif
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#ifndef sbi
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#define sbi(reg,bit) reg |= (BV(bit))
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#endif
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#ifndef cli
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#define cli() __asm__ __volatile__ ("cli" ::)
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#endif
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#ifndef sei
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#define sei() __asm__ __volatile__ ("sei" ::)
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#endif
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// use this for packed structures
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// (this is seldom necessary on an 8-bit architecture like AVR,
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// but can assist in code portability to AVR)
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#ifndef GNUC_PACKED
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#define GNUC_PACKED __attribute__((packed))
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#endif
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// port address helpers
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#ifndef DDR
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#define DDR(x) ((x)-1) // address of data direction register of port x
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#endif
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#ifndef PIN
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#define PIN(x) ((x)-2) // address of input register of port x
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#endif
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#ifndef MIN
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#define MIN min
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#endif
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#ifndef MAX
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#define MAX max
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#endif
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#endif
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