ISP with slow reset ?

Go To Last Post
3 posts / 0 new
Author
Message
#1
  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

I use a stk200 for a 8515 projekt, and ISP works fine for the prototype, but in the produkt I only have a slow way to reset the chip, and then the stk200 don't work, bacause it make some short pulses app. 25 ms before reset goes low, and the program/programmer need that.
I looked shortly on the reset when a stk500 read the chip at it looks even worse !!! a lot of pulses

So do anyone have a simpel way to program a 8515 just after the data sheet ?

Jens

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi Jens!

Have you had a look at the "In System Programming" app.note? If not, I suggest you do so. It's just a reference design, but a lot of people has used the code there to make an actual ISP programmer. And it works :) I't available under the "Tools" tab.

Corinthian

admin's test signature
 

  • 1
  • 2
  • 3
  • 4
  • 5
Total votes: 0

Hi Jens,

I have a very simple ISP programmer that you can add on your design or connecting it by use of a 4x2pin header. I'm using it in several projects with AVR's 2313's and 8515's.... so go to www.roesink.com and download the free software and the hardware description of the AVR ISP programmer (it is al for free!!)

Greeting,
Robert

www.roesink.com

admin's test signature