Hi all, in spite of reading all threads I still didn't get my External Bus Controller working for two Chip Selects at 16 Bit multiplexed bus. I use a XC164 and connect two ADCs to the Controller and do only need an access to the first and then to the second one using CS0 and CS1 - the ram adresses are not of any deeper interest. Normally (as I understood it) you don't need to use any further Pulldown/up resitors at startup. Going through the Start_V2.A66 everthing seems to look fine, but the default CS0 works, but I can't see any Signal with my scope at CS1. I tried to use 0x20'0000 to 0x3F'FFFF and to calculate the DPPs like Stefan Fricke wrote in a thread. Can anyone tell me what is further to be considered? Anyone with the same problem? Any solution? I'd go mad with joy when it works... Kind regards