Memory dump , RTC, Temp sensor

Hello,

This might be a beginner’s mistake but I am using an AT89C51, 2 rom chip, 2 ram chip, gal22v10, keypad, lcd, real time clock and temperature sensor. I was connected everything together using orcad schematic but I noticed that one side of my 8051 is stuck on the very first instructions I use. For example if I set port 1 or port 3 to 0 and try to switch it again to 1 it just stays on 0 and vice versa. Everything else works on the other side of the circuit.

Anyone knows why it is getting stuck on the first instruction even if I put it in a loop?

PS: my code is running from the eeprom.

Are you simulating in Orcad ?
Please post your code and schematic. (zip and attach it to your next post)
Do your have a version of your project for Proteus ?

Are you simulating in Orcad ?
Please post your code and schematic. (zip and attach it to your next post)
Do your have a version of your project for Proteus ?

ExperimenterUK

I used ORCAD schematic and I attached the files to this reply. Thanks

That looks complicated.
Is 8051_BLK a standard 8051 ?
You only posted the LCD asm file, not the main file(s).