I tryed to connect a Hitachi 2x16 display to 8031 but can't get it to work.
What I dit was to connect data to AD lines and RS to A0 , E to decoder 74138 ,Decoder lines ABC is connected to A13,A14,A15, E is then connected to adress $8000. (firs line of decoder) RWR is connected to GND. I am using Pascal Sys51 compiler. Please help I can't get it to work.

Regards

Peet Venter
Ps. MPU is working.