thnaks ijaz...

well i did not buy a off the shelf programmer.... we have a supplier of electronics parts which they build themself, mostly they get the schematics from the net. very very cost effective then a product. earlier i bought a programmer for 89c2051 and its working absolutely fine. now i bought the 89c51 programmer and i have checked that its really programmer the chip i mean the programmer can read back the 89c51 and it seems to me that programmer does not has the problem.



LED is connected to port 1 pin 1. first port is P0 so its the second port.


shahzad