AT89C51 Port2 pins generating Sq. wave even when not programmed to do so

I am writing a code to interface 4 SSD with AT89C51 at Port 2 and Port 0. Port 2 is used to select the SSD and the Port 0 lines act as data lines to SSD (through ULN2004). I have written code for the...
AT89C51 Port2 pins generating Sq. wave even when not programmed to do so

I am writing a code to interface 4 SSD with AT89C51 at Port 2 and Port 0. Port 2 is used to select the SSD and the Port 0 lines act as data lines to SSD (through ULN2004). I have written code for the...
AT89C51

How stop watchdog timer in AT89C51?
at89c51

hi all, what is the keil version required for at89c51 controller.
AT89C51

We are building a project based on AT89c51 microcontroller.We have not used any microcontroller ever before and this is the first time that we will be using one. We are trying 2 find out how 2 do the...