HI, I am trying to communicate with a board that has the XC161 step AA and one 8bit external RAM at CS0 for debugging. Until now the success ( :) ) is : in EA and bootstrap, sending a 0x0 the uP answers with A5 which I believe is fine! I have KEIL ULINK but I only get "device can not enter bypass mode. connection to target missing or incorrect." like if it is not connected. I have been trying to understand th OCDS and it seems it must have a monitor!? Does ULINK has all this? That is if connect ULINK and call it on uVision I must get something even if no sw is loaded? I make some measurements and I see TRST changing but nothing on TDO! Also I can not load any monitor on the board. So in conclusion I can not load anything on it. Does anyone has evere worked with XC161 and has any monitor or ULINK experience? If so can anyone explain to me if there is some tricks with it? thanks ards2all, joao
As far as I remember, the AA step has a broken bootstrap loader. We switched very early to AB step because of that. Now, the current stepping is AD.