PSD8xx configuration problem

[El_Paco]

i have some trouble with a psd854F2.
i try to configurate it -- but somewhere i maked a mistake.

the using as programmmemory works fine.
the generating of seperate cs signals work.

But...

I try to "get out" the latched adresses via PA[0:7].
nothing happends.

I try to configure the PSD-SRAM as von-neumann memory -- this seem also not properly work.

Is for this a clock signal neccesary?

It's possible to configure the sram in a neuman mode ?
how?

It would be nice if someone can help me.

Did someone know a telephone-number for PSD-Support in Germany?

Best thanks,
El_Paco

 

[sihuijian]

it maybe reset circuit problem!

I have a similar problem 1 years ago,but the chip I used is 813f2.
After changing from RC reset circuit to MAX706 upsupervisor reset circuit ,it works fine! I think it maybe the reset signal problem of 834f2.