FRAM71B

[Erwin]

(10-05-2016 03:42 PM)Dave Frederickson Wrote:  

(10-05-2016 10:45 AM)Erwin Wrote:  In the guide only a filename in FRAM71 Toolkit Ver 1.3 has changed: TRANS41 is now FTH41ROM

Hi Erwin,

I believe TRANS41 was changed to FTH41ROM quite a while ago. I changed the name to be consistent with Sylvain's 71B Compendium. There is a v1.3a update due to a missing file.

(10-05-2016 10:45 AM)Erwin Wrote:  Another question: what can I do with the free not used RAM in the FRAM71B?

That is why Bank Switching was devised and why the configuration string has address nibbles. Bank Switching allows you to switch "active" F-Blocks. With a 512K FRAM71/B you can load up to 15 32K F-Blocks with RAM or ROM images, 31 32K F-Blocks with the 1024K version, and switch between them.

Unfortunately this has never been documented in the manual. Perhaps this will help: FRAM71/B Bank Switching

Dave

Thank you very much I'll give it a try - but it doesn't look easy :-) for me maybe its too late tonight now.

Erwin