parallel port programming for AT89XX(problem)

[niranjan23]

Hiii...

I have problem with AT89XX programmer which is parallel as well as serial communication port, I got one programmer with it's design and I implement that circuit...

So problem is Programmer is not connecting with PC and software also, I tried 3 to 4 software to program AT89SXX.

Please tell me how to I program AT89S51 and how connect with PC....

Circuit and programmer attached below.....≧≧

 

[tpetar]

You dont need that scary circuit, just use this simple fo 89S51,52,53 also C.

 

[niranjan23]

Will it work...???

and if yes ...so what kind of changes I have to do.? In this Circuit

And what is the purpose of IC 74HCT541 ..???why no need of this...

 

[tpetar]

Work 100%.

Changes ? You dont need any changes just make circuit what I give you.