Hello, i am trying to bring a new board with an C167cr ONLY attached to 32 kB Ram alive. For this purpose i'am still using the (demo) Version 4.x.x. So far i failed using the debugger, with the adapted Bootloader Debug Monoitor. I may have not set everything properly. Please could someone give me a clue, what and how i have to care to bing it working. If i try downloading a simple application to the board the debugger does not load it at all. After around 5 seconds (at 9600 baud) i get the message that i should reset the cpu and try again. If i do not reset the cpu i get the same message in around 1 second. Form this time difference i can clearly see, that i am on the right way, but without correct error discription i am helpless to fix it. For me are the resaon for this behavior countless. An Problem could be where to fit the vector table in the 32 KB Ram. Is 0x4000 an good place ? Thomas p.s. Hardware seams to be fine after successfully reading data from eproms on this board.