Need to find AT89S52 Programmer schematic diagram...

previously i did asked for help on finding the AT89C52 programmer but most of you guys said its programmer is not that reliable...

so i decide to change to AT89S52 and now I need to find and know how to construct the schematic diagram of the programmer 1st..

Hope someone can help.. thanks!!!

Here is one try this

**broken link removed**

Y there is still At89c52 in the schematic diagram of the at89s52 programmer? Where in the schematic shud i connect my comp port to?

You better read this thread.
https://www.electro-tech-online.com/threads/at89s51-and-at89c51.31687/

RS232 is the place you need to connect to the COM port.

Gayan Soyza said:

Here is one try this

**broken link removed**

Click to expand...

Don't forget the ground connection on the 7805!
It's not on the schematic

Problem with that schematic is that you need to program one "AT89C" chip

chunei said:

previously i did asked for help on finding the AT89C52 programmer but most of you guys said its programmer is not that reliable...

so i decide to change to AT89S52 and now I need to find and know how to construct the schematic diagram of the programmer 1st..

Hope someone can help.. thanks!!!

Click to expand...

it is not question of reliability-- you will be spending a lot in purchasing normal type programmer- while in system programming ( ISP ) possible in later version i.e., 89s52 and the type of programmer can be assembled by anyone, -i made one in just 20 minutes and used it. costs practically nothing. we don,t need ZIF etc unless the volume of work is too large-- ten ofcourse- you would have purchesd a ready made one.
for hobby and for vey small numbers, and dot-board assembled type will just serve.

see the one at www.ikalogic.com/isp.php


Sarma

hi...

chunei...

what i gave you three programmers in previous thread.. all are for AT89s51/52 ...

out of three .. i would acknowledge GAYAN SOYZA.. gave me one out of that three...

Regrads,

Simran..