ST10F269 - Chipselects for external components

Posted on September 17, 2004 at 10:50

Hi,

I have got a small (or big) problem! I want to control a flash-memory with CS0 and 2 analog-digital-converters with CS1 and CS2

That doesn't work. When I set in START167.A66 from Keil

$SET (BUSCON1 = 1)

$SET (BUSCON2 = 1)

(all the rest is default)

and instruct

XVAR(int,100000)=100;

XVAR(int,200000)=100;

XVAR(int,100000)=0;

XVAR(int,200000)=0;

nothing works! One Buscon set on 0, it works, but only if all XVAR-Instructions are implemented! If I leave out the Instruction 2 and 4 (Buscon1=1 and Buscon2=0) it doesn't work, too.

Who can help and where is my mistake...

Thanks a lot,

Christian