Igor De Souza wrote:why not a Hat where you can add your on DDR memory?
that's is a nice idea!
No. The hat pins are GPIO pins, not memory bus pins.
You can attach external memory using GPIO (for example, via SPI), but you cannot address it directly in code. You have to treat it more like disk I/O requests.
Sorry about the delayed response. Yesterday I was having problems with the Ranch.
The secret of how to be miserable is to constantly expect things are going to happen the way that they are "supposed" to happen.
You can have faith, which carries the understanding that you may be disappointed. Then there's being a willfully-blind idiot, which virtually guarantees it.