FRAM71B

[Dave Frederickson]

(05-22-2016 04:54 PM)Hans Brueggemann Wrote:  

(05-22-2016 04:13 PM)Dave Frederickson Wrote:  I liked being able to move a single jumper and have the entire personality of the 71 switch.

this is exactly what you get. on top of that, FRAM71B will now also allow you to mix BOT_FRAM and TOP_FRAM memory in the same config, regardless of what config (let's call it BOT_CONF and TOP_CONF for now) is activated.
so, no more need to hold duplicate ROM images in different FRAM locations:if you want for example the MATHROM in both BOT and TOP config: just store it once somewhere in the FRAM and refer to it in both configs accordingly!

Is that feature limited to FRAM configured as ROM, because sharing RAM between configurations is an opportunity to muck up the file chain? The base 16K of RAM is already shared between Top and Bottom FRAM71 configurations and must be FREEPORT'ed to avoid MEMORY LOST.

Dave