ISP Mode Error in AVR Studio version 4.13

Log in or register to post comments
Go To Last Post
6 posts / 0 new
Author
Message
ssyed_mcu
ssyed_mcu's picture
Level: Wannabe
Joined: Sat. Sep 29, 2007
Posts: 75 View posts
Location: Bangalore, India
#1
Posted by ssyed_mcu: Sun. Nov 4, 2007 - 04:41 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi guys,

I am facing some problems with my AVR Studio. I think I accidently clicked some fuse settings while programming the AVR. I get the following message while programming the AVR as seen from the attached screenshot.

Please help, I am unable to program anything now.
PS: I am using ISP to program my AVR and the development board I am using runs on a 16 MHz crystal.I even tried erasing the device bu I keep getting the errors:

Entering programming mode.. FAILED!
Leaving programming mode.. OK!

Thanks,
Sumair

Attachment(s): 

File ISP_error.rar

Tags:

Tools, Atmel Studio (AVR-related)
Top
Bronze Markjs
js's picture
Level: Moderator
Joined: Wed. Mar 28, 2001
Posts: 30185 View posts
Location: Sydney, Australia (Gum trees, Koalas and Kangaroos, No Edelweis, but plenty of Corona beer)
Posted by js: Sun. Nov 4, 2007 - 10:32 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I don't have RAR, you can post the screen capture however as a JPG file.

Do you have the ISP frequency set correctly? Start with 125 or 250KHz. What chip are you using? You may have switched to external OSCILLATOR rather than external CRYSTAL oscillator, so you don't have a clock. Try and feed a 1MHz clock into xtal1.

John Samperi

Ampertronics Pty. Ltd.

https://www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

Top
Gold Markclawson
clawson's picture
Level: Moderator
Joined: Mon. Jul 18, 2005
Posts: 101911 View posts
Location: (using avr-gcc in) Finchingfield, Essex, England
Posted by clawson: Mon. Nov 5, 2007 - 10:29 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

John, the picture is nothing more than the standard "1/4 speed" message.

Top
ssyed_mcu
ssyed_mcu's picture
Level: Wannabe
Joined: Sat. Sep 29, 2007
Posts: 75 View posts
Location: Bangalore, India
Posted by ssyed_mcu: Tue. Nov 6, 2007 - 05:56 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi John,

You are right, I guess I must have checked that fuse bit while programming my AVR. Now I cannot use my ISP mode to program it. I contacted the guys from where I purchased my development board, and they said that I would either have to try paralle programming to set the fuse bits right or replace the AVR.

I don't have a signal generator to feed in a 1 MHz clock, but I guess I'll try constructing one with a 555 timer, and if it still does not work, then I guess I'll have to replace my AVR.

Thanks for the help :)
Sumair

Top
Bronze Markjs
js's picture
Level: Moderator
Joined: Wed. Mar 28, 2001
Posts: 30185 View posts
Location: Sydney, Australia (Gum trees, Koalas and Kangaroos, No Edelweis, but plenty of Corona beer)
Posted by js: Tue. Nov 6, 2007 - 08:28 AM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Quote:
I don't have a signal generator to feed in a 1 MHz clock,
I have been successful with just 4096Hz from my multimeter's signal out and a 603Hz ISP frequency with the AVRISP :)

It can be pretty much anything as long as the programmer's ISP setting can be set at 1/4 or less than the clock.

Which programmer are you using?

John Samperi

Ampertronics Pty. Ltd.

https://www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

Top
ssyed_mcu
ssyed_mcu's picture
Level: Wannabe
Joined: Sat. Sep 29, 2007
Posts: 75 View posts
Location: Bangalore, India
Posted by ssyed_mcu: Tue. Nov 6, 2007 - 06:27 PM
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi John,

The programmer I am using is some off-shoot of the STK500. Well I replaced my AVR and I am able to program it again. I guess I screwed up my old AVR by selecting a wrong clock source through the fuses, which caused all this problem, so I won't be needing the alternative clock source now :)

Thanks,
Sumair

Top