tpramanhyd
New Member
i have 89c51 hooked with adress decoder 138.
My issues is i am not able to write or read data from address location f000h
(as per my schematics f000 should refere to 6264, i checked with chip select signal output of the decoder, write and read pulses all of them tranisit b/w high and low as expected).
But i am not able to send or receive data from 6264. I use a serial link for display of data onto pc.
My issues is i am not able to write or read data from address location f000h
(as per my schematics f000 should refere to 6264, i checked with chip select signal output of the decoder, write and read pulses all of them tranisit b/w high and low as expected).
But i am not able to send or receive data from 6264. I use a serial link for display of data onto pc.