Setup custom targets in the "src/CMakeListst.txt" file. These include, the elf, hex, bin and an upload target.
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add_executable(main
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add_executable(${PROJECT_NAME}
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main.c
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main.c
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)
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)
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# Ensure the build rules are defined
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set_target_properties(${PROJECT_NAME} PROPERTIES SUFFIX ".elf")
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if(NOT TARGET size)
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# Set the size utility to display the size of the final binary
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add_custom_target(size ALL
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COMMAND ${CMAKE_SIZE} --format=avr --mcu=${AVR_MCU} ${CMAKE_PROJECT_NAME}.elf
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DEPENDS ${CMAKE_PROJECT_NAME}.elf
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)
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endif()
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if(NOT TARGET hex)
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# Define how to convert ELF to HEX
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add_custom_target(hex ALL
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COMMAND ${CMAKE_OBJCOPY} -O ihex -R .eeprom ${CMAKE_PROJECT_NAME}.elf ${CMAKE_PROJECT_NAME}.hex
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DEPENDS ${CMAKE_PROJECT_NAME}.elf
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)
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endif()
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if(NOT TARGET bin)
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# Define how to convert ELF to BIN
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add_custom_target(bin ALL
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COMMAND ${CMAKE_OBJCOPY} -O binary -R .eeprom ${CMAKE_PROJECT_NAME}.elf ${CMAKE_PROJECT_NAME}.bin
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DEPENDS ${CMAKE_PROJECT_NAME}.elf
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)
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endif()
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if(NOT TARGET upload)
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# Upload command (adjust according to your programmer)
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add_custom_target(upload ALL
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COMMAND avrdude -c usbtiny -p ${AVR_MCU} -U flash:w:${CMAKE_PROJECT_NAME}.hex
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DEPENDS hex
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)
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endif()
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55
src/main.c
55
src/main.c
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#include "stdio.h"
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#include "stdio.h"
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include <util/delay.h>
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#include <avr/sleep.h>
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//#############################
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//Globals
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//#############################
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#define LED_PIN PB0
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//#############################
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//Prototypes
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//#############################
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void led_blink(void);
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//#############################
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//MAIN
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//#############################
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int main(int argc, char **argv)
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int main(int argc, char **argv)
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{
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{
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printf("Hello!\n");
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led_blink();
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while(1) {
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led_blink();
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_delay_ms(500);
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}
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return 0;
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return 0;
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}
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}
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//#############################
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//FUNCTIONS
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//#############################
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/*
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* Input: None
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* Output: None
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* Description: Toggles the pin for the LED indicator.
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*/
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void led_blink(void) {
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//Set the DDR for output.
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DDRC |= (1<<LED_PIN);
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PORTC ^= (1<<LED_PIN);
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_delay_ms(250);
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PORTC ^= (1<<LED_PIN);
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_delay_ms(250);
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}
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