I\'m developing a robot using a 80c52 core. I\'ve made my own MCU controller PCB but I have a problem when starting up.
When the power is connected, the MCU seems to be in a sleep state and there is no output (to LCD, motors, etc ... ) But when I touch the crystal or one of the pins, It seems to wake up or somthing. I also have a reset circuit using a Cap and a Res to reset it on startup but that doesn\'t seem to work either.
This problem has been since I made this circuit board. I also checked all the crystal connections but they are all connected.

Please help me solve this one ...

Thanks

>Nim\'s