AVR Libc AVRLibc

1 Toolchain Overview

1 Memory Areas and Using malloc()

1 Memory Sections

1 Data in Program Space

1 avr-libc and assembler programs

1 Inline Assembler Cookbook

1 How to Build a Library

1 Porting From IAR to AVR GCC

1 Frequently Asked Questions

1 Building and Installing the GNU Tool Chain

1 Using the GNU tools

1 Compiler optimization

1 Using the avrdude program

1 Release Numbering and Methodology

1 Acknowledgments

2 Library Reference

AVR Libc Library Reference

2 <alloca.h>: Allocate space in the stack

2 <assert.h>: Diagnostics

2 <avr/boot.h>: Bootloader Support Utilities

2 <avr/cpufunc.h>: Special AVR CPU functions

2 <avr/eeprom.h>: EEPROM handling

2 <avr/fuse.h>: Fuse Support

2 <avr/interrupt.h>: Interrupts

2 <avr/io.h>: AVR device-specific IO definitions

2 <avr/lock.h>: Lockbit Support

2 <avr/pgmspace.h>: Program Space Utilities

2 <avr/power.h>: Power Reduction Management

2 <avr/sfr_defs.h>: Special function registers

2 <avr/signature.h>: Signature Support

2 <avr/sleep.h>: Power Management and Sleep Modes

2 <avr/version.h>: avr-libc version macros

2 <avr/wdt.h>: Watchdog timer handling

2 <compat/deprecated.h>: Deprecated items

2 <compat/ina90.h>: Compatibility with IAR EWB 3.x

2 <ctype.h>: Character Operations

2 <errno.h>: System Errors

2 <inttypes.h>: Integer Type conversions

2 <math.h>: Mathematics

2 <setjmp.h>: Non-local goto

2 <stdint.h>: Standard Integer Types

2 <stdio.h>: Standard IO facilities

2 <stdlib.h>: General utilities

2 <string.h>: Strings

2 <time.h>: Time

2 <util/atomic.h> Atomically and Non-Atomically Executed Code Blocks

2 <util/crc16.h>: CRC Computations

2 <util/delay.h>: Convenience functions for busy-wait delay loops

2 <util/delay_basic.h>: Basic busy-wait delay loops

2 <util/parity.h>: Parity bit generation

2 <util/setbaud.h>: Helper macros for baud rate calculations

2 <util/twi.h>: TWI bit mask definitions

3 Example Projects

3 Demo projects

4.5 asc_store.c

4.7 asctime_r.c

4.21 clearerr.c

4.26 cty_isfalse.S

4.29 daylight_seconds.c

4.32 delay_basic.h

4.34 deprecated.h

4.35 difftime.c

4.37 dst_pointer.c

4.38 dtoa_conv.h

4.39 dtoa_prf.c

4.44 eerd_block.S

4.45 eerd_byte.S

4.46 eerd_dword.S

4.47 eerd_word.S

4.48 eeupd_block.S

4.49 eeupd_byte.S

4.50 eeupd_dword.S

4.51 eeupd_word.S

4.52 eewr_block.S

4.53 eewr_byte.S

4.54 eewr_dword.S

4.55 eewr_word.S

4.56 ephemera_common.h

4.57 equation_of_time.c

4.62 fatfs_time.c

4.64 fdevopen.c

4.73 fprintf_p.c

4.79 fscanf_p.c

4.80 ftoa_engine.S

4.83 geo_location.c

4.88 gm_sidereal.c

4.90 gmtime_r.c

4.94 interrupt.h

4.95 inttypes.h

4.98 iocompat.h

4.100 isalpha.S

4.101 isascii.S

4.102 isblank.S

4.103 iscntrl.S

4.104 isdigit.S

4.106 iso_week_date.c

4.107 iso_week_date_r.c

4.108 isotime.c

4.109 isotime_r.c

4.110 isprint.S

4.111 ispunct.S

4.113 isspace.S

4.114 isxdigit.S

4.116 itoa_ncheck.S

4.118 largedemo.c

4.122 lm_sidereal.c

4.123 localtime.c

4.124 localtime_r.c

4.127 ltoa_ncheck.S

4.130 memccpy.S

4.131 memccpy_P.S

4.133 memchr_P.S

4.135 memcmp_P.S

4.136 memcmp_PF.S

4.138 memcpy_P.S

4.139 memcpy_PF.S

4.141 memmem_P.S

4.142 memmove.S

4.143 memrchr.S

4.144 memrchr_P.S

4.146 mk_gmtime.c

4.148 month_length.c

4.149 moon_phase.c

4.151 mulsi10.S

4.153 pgmspace.h

4.154 portpins.h

4.156 print_lz.c

4.158 printf_p.c

4.159 project.h

4.161 putchar.c

4.167 realloc.c

4.169 scanf_p.c

4.170 set_dst.c

4.171 set_position.c

4.172 set_system_time.c

4.173 set_zone.c

4.174 setbaud.h

4.177 sfr_defs.h

4.179 signature.h

4.181 snprintf.c

4.182 snprintf_p.c

4.183 solar_declination.c

4.184 solar_noon.c

4.185 sprintf.c

4.186 sprintf_p.c

4.188 sscanf_p.c

4.191 stdio_private.h

4.192 stdiodemo.c

4.194 stdlib_private.h

4.195 strcasecmp.S

4.196 strcasecmp_P.S

4.197 strcasecmp_PF.S

4.198 strcasestr.S

4.199 strcasestr_P.S

4.201 strcat_P.S

4.202 strcat_PF.S

4.204 strchr_P.S

4.205 strchrnul.S

4.206 strchrnul_P.S

4.208 strcmp_P.S

4.209 strcmp_PF.S

4.211 strcpy_P.S

4.212 strcpy_PF.S

4.213 strcspn.S

4.214 strcspn_P.S

4.216 strftime.c

4.218 strlcat.c

4.219 strlcat.S

4.220 strlcat_P.S

4.221 strlcat_PF.S

4.222 strlcpy.c

4.223 strlcpy.S

4.224 strlcpy_P.S

4.225 strlcpy_PF.S

4.227 strlen_P.S

4.228 strlen_PF.S

4.230 strncasecmp.S

4.231 strncasecmp_P.S

4.232 strncasecmp_PF.S

4.233 strncat.S

4.234 strncat_P.S

4.235 strncat_PF.S

4.236 strncmp.S

4.237 strncmp_P.S

4.238 strncmp_PF.S

4.239 strncpy.S

4.240 strncpy_P.S

4.241 strncpy_PF.S

4.242 strnlen.S

4.243 strnlen_P.S

4.244 strnlen_PF.S

4.245 strpbrk.S

4.246 strpbrk_P.S

4.247 strrchr.S

4.248 strrchr_P.S

4.251 strsep_P.S

4.253 strspn_P.S

4.255 strstr_P.S

4.256 strstr_PF.S

4.259 strtok_P.c

4.260 strtok_r.S

4.261 strtok_rP.S

4.263 strtoul.c

4.265 sun_rise.c

4.266 sun_set.c

4.268 system_tick.S

4.269 system_time.c

4.272 tm_store.c

4.273 toascii.S

4.274 tolower.S

4.275 toupper.S

4.276 util/twi.h

4.277 compat/twi.h

4.278 twitest.c

4.282 ultoa_invert.S

4.283 ultoa_ncheck.S

4.285 usa_dst.h

4.286 utc_offset.c

4.288 utoa_ncheck.S

4.289 version.h

4.290 vfprintf.c

4.291 vfprintf_p.c

4.292 vfscanf.c

4.293 vfscanf_p.c

4.294 vprintf.c

4.296 vsnprintf.c

4.297 vsnprintf_p.c

4.298 vsprintf.c

4.299 vsprintf_p.c

4.301 week_of_month.c

4.302 week_of_year.c

4.304 xtoa_fast.h

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.