Delay function not working in Atmel Studio 7

Log in or register to post comments
Go To Last Post
11 posts / 0 new
Author
Message
yelo95
yelo95's picture
Level: New Member
Joined: Tue. Apr 14, 2020
Posts: 3 View posts
#1
Posted by yelo95: Tue. Apr 14, 2020 - 08:43 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi, 

 

A beginner here. Trying to make a blink LED program but the _delay_ms() function is not working. Pls assist. 

 

/*
 * GccApplication1.c
 *
  

#define F_CPU
#define F_CPU 16000000UL 

#endif

#include <avr/io.h>
#include <delay.h>

int main(void)
{
    
    DDRD=0xFF;
    
    while (1) 
    {
        PORTD=0xFF;
        _delay_us(1000)
        PORTD=0x00;
        _delay_us(1000)
    }
}

Tags:

AVR Microcontrollers, megaAVR and tinyAVR, #Arduino #AtmelStudio7
Top
meolsen
meolsen's picture
Level: Site Admin
Joined: Wed. Jul 27, 2011
Posts: 4044 View posts
Location: Microchip, Arizona
Posted by meolsen: Tue. Apr 14, 2020 - 08:58 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

#include <util/delay.h>

 

https://onlinedocs.microchip.com...

 

Also, what doesnt work... You will usually get much better answers if you tell us that :)

:: Morten

 

(yes, I work for Microchip, yes, I do this in my spare time, now stop sending PMs)

 

The postings on this site are my own and do not represent Microchip’s positions, strategies, or opinions.

Top
yelo95
yelo95's picture
Level: New Member
Joined: Tue. Apr 14, 2020
Posts: 3 View posts
Posted by yelo95: Tue. Apr 14, 2020 - 09:07 PM (Reply to #2)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0


Hi @meolsen. I checked the avr functions and tried with <util/delay.h> but it still gives me a main.o error. Error ss attached. 

Top
Gold Markclawson
clawson's picture
Level: Moderator
Joined: Mon. Jul 18, 2005
Posts: 104932 View posts
Location: (using avr-gcc in) Finchingfield, Essex, England
Posted by clawson: Tue. Apr 14, 2020 - 09:22 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Try renaming "E:\New Folder" to remove the space from the name.

Top
Bronze Marktheusch
theusch's picture
Level: 10k+ Postman
Joined: Mon. Feb 19, 2001
Posts: 40559 View posts
Location: Wisconsin USA
Posted by theusch: Tue. Apr 14, 2020 - 09:36 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

yelo95 wrote:
the _delay_ms() function is not working.

yelo95 wrote:
 _delay_us(1000)

 

Also, how about a semicolon to end statements?

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

Top
yelo95
yelo95's picture
Level: New Member
Joined: Tue. Apr 14, 2020
Posts: 3 View posts
Posted by yelo95: Tue. Apr 14, 2020 - 10:11 PM (Reply to #5)
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0


 

 

still not working. 

Top
ka7ehk
ka7ehk's picture
Level: 10k+ Postman
Joined: Fri. Nov 22, 2002
Posts: 22868 View posts
Location: Tangent, OR, USA
Posted by ka7ehk: Tue. Apr 14, 2020 - 11:27 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

What does not work? How do you know that it does not work?   Nevermind, it  hidden at the bottom of the listing.

 

We really need more of the error list than "recipe failed". That is about like saying "the night is dark".

 

 

Jim

 

Until Black Lives Matter, we do not have "All Lives Matter"!

 

 

Last Edited: Tue. Apr 14, 2020 - 11:31 PM
Top
joeymorin
joeymorin's picture
Level: 10k+ Postman
Joined: Tue. Jul 17, 2012
Posts: 12051 View posts
Location: Location, Location
Posted by joeymorin: Tue. Apr 14, 2020 - 11:27 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

yelo95 wrote:
still not working
A thoroughly unhelpful diagnostic statement.

 

What are you expecting to happen?

What is happening?

What have you done to investigate?

 

"Experience is what enables you to recognise a mistake the second time you make it."

"Good judgement comes from experience.  Experience comes from bad judgement."

"Wisdom is always wont to arrive late, and to be a little approximate on first possession."

"When you hear hoofbeats, think horses, not unicorns."

"Fast.  Cheap.  Good.  Pick two."

"We see a lot of arses on handlebars around here." - [J Ekdahl]

 

Top
frog_jr
frog_jr's picture
Level: Raving Lunatic
Joined: Sat. Jan 15, 2011
Posts: 2227 View posts
Location: Woodway, Texas
Posted by frog_jr: Wed. Apr 15, 2020 - 03:11 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

And, of course, you realize that defining F_CPU doesn't really change the frequency of the device...

How are the fuses set?

Is CKDIV8 programmed?

David

Top
kabasan
kabasan's picture
Level: Posting Freak
Joined: Mon. May 22, 2017
Posts: 1233 View posts
Location: Japan
Posted by kabasan: Wed. Apr 15, 2020 - 04:36 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I think that the blinking cycle of 500Hz (ON: 1ms, OFF: 1ms) is invisible to the human eye.

Top
larryvc
larryvc's picture
Level: Raving Lunatic
Joined: Thu. Dec 6, 2007
Posts: 4229 View posts
Location: Redmond, WA, USA
Posted by larryvc: Wed. Apr 15, 2020 - 04:56 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

yelo95,

 

This has been pointed out several times before:  You are using  _delay_us(1000) so the delay is 1000 micro seconds

 

Change those to _delay_ms(1000) and it just might work.

 

"I may make you feel but I can't make you think" - Jethro Tull - Thick As A Brick

"void transmigratus(void) {transmigratus();} // recursio infinitus" - larryvc

"It's much more practical to rely on the processing powers of the real debugger, i.e. the one between the keyboard and chair." - JW wek3

"When you arise in the morning think of what a privilege it is to be alive: to breathe, to think, to enjoy, to love." -  Marcus Aurelius

Top