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robo_freak
03-16-2010, 05:39 PM
please provide me circuit and necessary info for making an ISP for AT89S52.

pratheek
03-16-2010, 07:52 PM
Parallel, serial or USB?

Do search the forum and google (and be a little specific in your next post).

robo_freak
03-17-2010, 07:46 PM
Parallel, serial or USB?

Do search the forum and google (and be a little specific in your next post).

Hello

Preferably I want USB. I have searched a lot on google but all the content I found either didn't worked or there was incomplete info.

Here are some of the sites I have looked upon-

http://todor.topalov.com/89S52prog/ - complete circuit is not given requires a an mcu to be burned with firmware
http://www.8052.com/users/AT89S52InSystemProg/ - made this one but it didn't worked and requires an mcu to be burned with firmware
http://www.kmitl.ac.th/~kswichit/IspPgm30a/ISP-Pgm30a.html - based on parallel port, i dont have one with my pc
http://www.ikalogic.com/isp.php - same as above requires parallel port

vikas
03-17-2010, 08:49 PM
Why not use AVR to program ur 89s52 , serial or parallel are highly unreliable.

http://www.8051projects.info/blogs/post/USB-8051AVR-programmer.aspx :) , Cheap and effective .

Nivedita
03-18-2010, 03:47 PM
That's good circuit to program 89S series.

Use FreeISP or similar low cost programmer to program the ATmega8 to make this programmer.