problem with atmel 89c2051 circuit

Thread Starter

pradeep koderi

Joined May 31, 2008
dear collegues,

written a code in C language using keil programming tool.
compiled the same and saved in .hex file.Downloaded the
program and assembled remaining passive components as detailed in 89c2051 datasheet.
Noticed that all the output pin in microcontroller remains in high state.
made reset and checked the crystal.All seems to be OK.

Kindly provide suggestions in this regards.