GitHub - digitallumens/u-boot-at91: U-boot for Atmel AT91SAM SoC
GCC 4.9.2 | PDF | Free Software | C (Programming Language)
ARM Compiler v4.1 | PDF | Constructor (Object Oriented Programming) | Programming
avr-libc Reference Manual
Objective-C for the AVR, part 1 — Matt Jacobson
CodeVisionAVR User Manual
Objective-C for the AVR, part 1 — Matt Jacobson
shiftPWM Incompatibility - Programming Questions - Arduino Forum
Cx51 Keil | PDF | C (Programming Language) | Subroutine
Unable to compile nrpe-3.1.0 - undefined references to va_start, va_end · Issue #116 · NagiosEnterprises/nrpe · GitHub
Header file inclusion - Programming Questions - Arduino Forum
Unable to compile nrpe-3.1.0 - undefined references to va_start, va_end · Issue #116 · NagiosEnterprises/nrpe · GitHub
Imagecraft c compiler and development environment for the atmel avr
ATMEL Studio 7: undefined reference - Mikrocontroller.net
Section - GCC
MPLAB XC8 C Compiler User's Guide for AVR MCU
arduino-preprocessor/test_blink_avr.cpp at master · arduino/arduino-preprocessor · GitHub
gcc/NEWS at r4.8.5-aix · aixoss/gcc · GitHub
Intellisense errors for #define values in .C files · Issue #1364 · microsoft/vscode-arduino · GitHub
va_start & va_end are not defined · Issue #240 · stm32duino/Arduino_Core_STM32 · GitHub
UART identifier "UBRR0H" is undefined (ATmega 8) - Libraries - PlatformIO Community
Imagecraft c compiler and development environment for the atmel avr
GitHub - Overkiz/u-boot-at91: U-boot for Atmel AT91SAM SoC
Avr PDF | PDF | Parameter (Computer Programming) | C (Programming Language)
MPLAB XC16 C Compiler User's Guide
GitHub - nedap/u-boot-at91: U-boot for Atmel AT91SAM SoC
undefined reference to - YouTube
Using STM32CubeMX generate code for STM32CubeIDE and than change main.c to main.cpp, and build project will show up undefined reference to 'main' error.