The documentation for the whole procedure is only partial right now, so if you would like to formally record something written along the way, you are more than welcome to
Basically you are on the right track – however you are missing the adapted eCos base, which contain some adaptations to our hardware. The e7t is the foundament, but we have some deviations in place as well, such as more memory for example.
The most efficient thing to do would be for me to put up the eCos base up for you to download and use. Let me know if that is what you’d like.