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
It is right from the KEIL support, the loader of step AA receives only 28 bytes. In BSL Mode you should receive 0xD5 + ID Regs which are for XC161 1820h IDMANUF 2001h or 2002h or 2301 IDCHIP 3020h IDMEM 4040h IDPROG With OCDS I have no experiences at this time. But there are some hints for OCDS in the erratas. Stefan