Driver for example application from Getting Started with Blink. This file also serves to demonstrate the anatomy of embedded firmware. More...

#include <util/delay.h>
#include "pin_defines.h"
#include "blink.h"

Macros
#define	BLINK_TIME_MS 1000

Functions
void	init_led (void)
	Call this function once on entry of main() routine to configure settings and initialise the LED for use. More...

void	blink_led (void)
	Call this function in the loop of the main() routine to blink the LED. More...

Detailed Description

Driver for example application from Getting Started with Blink. This file also serves to demonstrate the anatomy of embedded firmware.

Copyright: Copyright © 2022 by Jason Duffy.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Author: Jason Duffy

Date: 15th March 2022

Definition in file blink.c.

Macro Definition Documentation

◆ BLINK_TIME_MS

#define BLINK_TIME_MS 1000

Definition at line 47 of file blink.c.

Function Documentation

◆ init_led()

void init_led ( void )

Call this function once on entry of main() routine to configure settings and initialise the LED for use.

Definition at line 55 of file blink.c.

{
    LED_DDR |= (1 << LED_GPIO); // Set LED_GPIO as output
}

◆ blink_led()

void blink_led ( void )

Call this function in the loop of the main() routine to blink the LED.

Definition at line 64 of file blink.c.

{
    LED_PORT |= (1 << LED_GPIO); // Turn LED on
    _delay_ms(BLINK_TIME_MS); // Wait a specified length of time
 
    LED_PORT &= ~(1 << LED_GPIO); // Turn LED off 
    _delay_ms(BLINK_TIME_MS); // Wait a specified length of time
}