CodeVisionAVR
© 1998-2001 HP InfoTech S.R.L.
3.8 Defining Data Types .............................................................................................................. 73
3.9 Type Conversions.................................................................................................................. 74
3.10 Operators ............................................................................................................................ 75
3.11 Functions............................................................................................................................. 76
3.12 Pointers ............................................................................................................................... 77
3.13 Accessing the I/O Registers................................................................................................. 79
3.13.1 Bit level access to the I/O Registers ............................................................................. 80
3.14 Accessing the EEPROM ...................................................................................................... 81
3.15 Using Interrupts ................................................................................................................... 82
3.16 SRAM Memory Organization................................................................................................ 84
3.17 Using an External Startup File.............................................................................................. 86
3.18 Including Assembly Language in Your Program ................................................................... 88
3.18.1 Calling Assembly Functions from C .............................................................................. 89
3.19 Creating Libraries ................................................................................................................ 90
3.20 Using the AVR Studio Debugger.......................................................................................... 93
3.21 Hints.................................................................................................................................... 94
3.22 Limitations ........................................................................................................................... 95
4. Library Functions Reference ..................................................................................................... 96
4.1 Character Type Functions...................................................................................................... 97
4.2 Standard C Input/Output Functions ........................................................................................ 98
4.3 Standard Library Functions.................................................................................................. 101
4.4 Mathematical Functions ....................................................................................................... 102
4.5 String Functions................................................................................................................... 105
4.6 BCD Conversion Functions.................................................................................................. 110
4.7 Memory Access Functions................................................................................................... 110
4.8 LCD Functions..................................................................................................................... 111
4.8.1 LCD Functions for displays with up to 2x40 characters ................................................. 111
4.8.2 LCD Functions for displays with 4x40 characters.......................................................... 114
4.8.3 LCD Functions for displays connected in 8 bit memory mapped mode.......................... 116
4.9 I
2
C Bus Functions................................................................................................................ 119
