FRAM71B

[Dave Frederickson]

(10-06-2016 07:43 PM)Erwin Wrote:  Hi Dave,

sorry my comment was no criticism about the feature bank switching. What I meant in my post is, that there are some FRAM71s out there and the experiences are very small - that was I'm wondering. Maybe its my bad english too. I am grateful for the initiative for the hardware and software - you all did a very good job and helps to have useful possibilities with our ancient calculator. The FRAM Toolkit, the guide from Sylvain and the good description from Hans was a great help for me otherwise it would not be able to make the configuration.
I use the HP71 with small basic-programs in my job and in my study (in my old days) and the HP3421A but not in 'deep' programming- But now with the FRAM71 it could get more practical for me instead of switching out modules and with PIL-BOX and the pyilper its easier for my to handle my files instead with the floppy disc.

I didn't, use ROMCOPY after the first basic installation. My problem is that I was not able to start initiate the other banks with the first POKE like Sylvain proposed. Maybe there is a mistake from me - don't know. So I tried to describe exactly what I did so it could be helpful to go further.
I'm ready to continue further testing - next step is like a wrote in my last reply in order to prevent a fault regarding the LEX files.

best regards
Erwin

Hi Erwin,

No problem.

I agree with you that I don't think many FRAM71 users are experimenting with the more advanced features like SYSRAM and Bank Switching. For the record, there are about 20 FRAM71(A) modules out there in addition to the FRAM71B modules just being shipped and there has been very little FRAM71 activity on the forum.

I don't think there's any issue with LEX files. Both the FORTH/Assembler and 41 Translator ROM's contain LEX files and the Bank Switching article demonstrates switching these two ROM's (actually two pair), arguably the most difficult thing to do with FRAM71/B.

Regards, Dave