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» smoerijf.be » Categoriën » adev board » files » FIle: s/g.h
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C code - 
  1. //*****************************************************************************
  2. //
  3. // File Name    : g.h
  4. // Title        : global usefull define and typedef
  5. // Author       : Smoerijf.be (Orinal by Pascal Stang - edit by smoerijf)
  6. // Target MCU   : Atmel AVR Series
  7. //
  8. //*****************************************************************************
  9. //@{
  10.  
  11. #ifndef GLOBAL_H
  12. #define GLOBAL_H
  13.  
  14. #include <avr/io.h>
  15.  
  16.  
  17. // Code compatibility to new AVR-libc
  18. // outb(), inb(), inw(), outw(), BV(), sbi(), cbi(), sei(), cli()
  19. #ifndef outb
  20.    #define   outb(addr, data)   addr = (data)
  21. #endif
  22. #ifndef inb
  23.    #define   inb(addr)         (addr)
  24. #endif
  25. #ifndef outw
  26.    #define   outw(addr, data)   addr = (data)
  27. #endif
  28. #ifndef inw
  29.    #define   inw(addr)         (addr)
  30. #endif
  31. #ifndef BV
  32.    #define BV(bit)         (1<<(bit))
  33. #endif
  34. #ifndef cbi
  35.    #define cbi(reg,bit)   reg &= ~(BV(bit))
  36. #endif
  37. #ifndef sbi
  38.    #define sbi(reg,bit)   reg |= (BV(bit))
  39. #endif
  40. #ifndef cli
  41.    #define cli()         __asm__ __volatile__ ("cli" ::)
  42. #endif
  43. #ifndef sei
  44.    #define sei()         __asm__ __volatile__ ("sei" ::)
  45. #endif
  46.  
  47. // support for individual port pin naming in the mega128
  48. // see port128.h for details
  49. #ifdef __AVR_ATmega128__
  50.    // not currently necessary due to inclusion
  51.    // of these defines in newest AVR-GCC
  52.    // do a quick test to see if include is needed
  53.    #ifndef PD0
  54.       #include "port128.h"
  55.    #endif
  56. #endif
  57.  
  58. // use this for packed structures
  59. // (this is seldom necessary on an 8-bit architecture like AVR,
  60. // but can assist in code portability to AVR)
  61. #define GNUC_PACKED __attribute__((packed)) 
  62.  
  63. // port address helpers
  64. #define DDR(x) (*(&x - 1)) // address of data direction register of port x
  65. #define PIN(x) (*(&x - 2)) // address of input register of port x
  66.  
  67. // MIN/MAX/ABS macros
  68. #define MIN(a,b)         ((a<b)?(a):(b))
  69. #define MAX(a,b)         ((a>b)?(a):(b))
  70. #define ABS(x)            ((x>0)?(x):(-x))
  71.  
  72. // constants
  73. #define PI      3.14159265359
  74.  
  75. //! read bit in
  76. unsigned char rbi(unsigned char addr, unsigned char bit)
  77. {
  78.    return ((addr & BV(bit)) > 0);
  79. }
  80.  
  81. //! toggle bit
  82. #define tbi(port, bit) ((rbi(port, bit)) ? (cbi(port, bit)) : (sbi(port, bit)))
  83.  
  84.  
  85.  
  86. #ifndef WIN32
  87.    // true/false defines
  88.    #define FALSE   0
  89.    #define TRUE   -1
  90. #endif
  91.  
  92. // datatype definitions macros
  93. typedef unsigned char u08;
  94. typedef signed char s08;
  95. typedef unsigned short u16;
  96. typedef signed short s16;
  97. typedef unsigned long u32;
  98. typedef signed long s32;
  99. typedef unsigned long long u64;
  100. typedef signed long long s64;
  101.  
  102. // maximum value that can be held
  103. // by unsigned data types (8,16,32bits)
  104. #define MAX_U08   255
  105. #define MAX_U16   65535
  106. #define MAX_U32   4294967295
  107.  
  108. // maximum values that can be held
  109. // by signed data types (8,16,32bits)
  110. #define MIN_S08   -128
  111. #define MAX_S08   127
  112. #define MIN_S16   -32768
  113. #define MAX_S16   32767
  114. #define MIN_S32   -2147483648
  115. #define MAX_S32   2147483647
  116.  
  117. #ifndef WIN32
  118.    // more type redefinitions
  119.    typedef unsigned char BOOL;
  120.    typedef unsigned char   BYTE;
  121.    typedef unsigned int   WORD;
  122.    typedef unsigned long   DWORD;
  123.  
  124.    typedef unsigned char   UCHAR;
  125.    typedef unsigned int   UINT;
  126.    typedef unsigned short USHORT;
  127.    typedef unsigned long   ULONG;
  128.  
  129.    typedef char         CHAR;
  130.    typedef int            INT;
  131.    typedef long         LONG;
  132. #endif
  133.  
  134.  
  135. #define CYCLES_PER_US ((F_CPU+500000)/1000000)    // cpu cycles per microsecond
  136.  
  137. #endif
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