[SOLVED] development board problem

[jaksongats]

hi frnds, i got the problem in my programmer board when i had tried with at90s8515 is works very well but when i used same programer board for at89s52 it was shows no response from micro controller.......but this board support the micro controller....plz help me frnds i really need it .....thanks

 

[zoro1]

And the board is?Is there on the board programmer ,or you are using .... programmer?

 

[jaksongats]

it is an isp programmer threw parallel port ........it works on at90s8515 but not supports at89s52 ...plz help

 

[microcon555]

First thing the reset is inverted in 89Sxx.

The speed for programming for 89Sxx is much lesser than 8515

Better post your circuit / details about your parallel port programmer, we can find out what is wrong

Micro

 

[jaksongats]

https://obrazki.elektroda.pl/6_1286878131.gif
https://obrazki.elektroda.pl/89_1286878131.gif

---------- Post added at 15:42 ---------- Previous post was at 15:42 ----------

here is the circuit frnds .....

 

[nikhil_jain]

what programmer softwarer are u using? did u select the proper chip before burning the controller?

 

[nandhu015]

The Hardware seems to be fine. The problem must be with software.

There are lot of softwares available in the net. Try some other software and comeup with results

 

[zoro1]

C3 to GND .nothing wrong in the scheme do not see

 

[jaksongats]

i had use isppgm 3.7 ya i checked the device number ......i will try another version of this software..then see what happen

---------- Post added at 23:22 ---------- Previous post was at 23:03 ----------

checked with another version of software but the result is same .........

 

[zoro1]

You can try programmer from here :**broken link removed**
Are you sure that the MCU is OK?Change the HC wit LS in the programmer ,some times do not work correct.Or try the simple programmer like this **broken link removed**

 

[jaksongats]

what is the problem??? plz anybody define me....

 

[jaksongats]

Finally problem is solved by decreasing the length of ISP...