FarmFax batery for Memory card

[Alastair]

Is that a rechargeable battery, or is it just the batteries wrapped in green plastic that are rechargeable?

[Pernod70]

I may be wrong, but it looks to me that POKE 65344,1 pages in the cartridge memory and POKE 65344,0 restores the original memory area.

Am tempted to agree, so that's &FF40 (for readability), and presumably just switches between the 16K ROM and RAM. The issue 2 board has 6K (but can take upto 16K) whereas the issue 1 has 4K, so presume it checks how much is available somewhere. Do any of the other Farmfax/Argo apps require this RAM cartridge?

[robcfg]

The program on the cartridge rom, copies the contents into the Basic memory area and the RUNs the program, so after that the cartridge rom is useless and can be swapped with the cartridge ram.

I don't have any other cartridge and I don't know if the one that Pere has has been dumped.

[pser1]

The program on the cartridge rom, copies the contents into the Basic memory area and the RUNs the program, so after that the cartridge rom is useless and can be swapped with the cartridge ram.
I don't have any other cartridge and I don't know if the one that Pere has been dumped.

Hi Robert,
no, I haven't even given it a try. Right now my lab table is full with FM77AV and FM-7 equipment
I hope to be able to put my Dragon64 again on that table, then using the DP50Extended I could easily copy the contents of the ROMs to disk
and so I would share them here.
Talking about the RAM. The chips there are 6116 that according to the datasheet are 2048 word x 8 bits (words should mean groups of 8 bits)
It seems organized as an array 128x128, this gives 16.384 bits = 2048 bytes inside each chip.
So, Issue 1, that contains two chips, should show 4Kb RAM whilst Issue 2, with 8 chips, should show up to 16Kb as Pernod70 had indicated
cheers!

[pser1]

Do any of the other Farmfax/Argo apps require this RAM cartridge?

I am attaching here a doc that shows the FarmFax modules that could be
bought back then with memory included!!
Mine is Dairy Ration Formulation + Memory
robcfg could tell us what model is the one he has ... there were NINE different combinations!
cheers!

[robcfg]

I think mine is the french version of the Financial Planner + Memory.

Interestingly enough, the rom that looks definitely equivalent to Budget Prévisionnel is the one from Cash Planner, which does not appear in the price list, or it appears as Financial Planner instead.

[pser1]

I think mine is the french version of the Financial Planner + Memory.
Interestingly enough, the rom that looks definitely equivalent to Budget Prévisionnel is the one from Cash Planner, which does not appear in the price list, or it appears as Financial Planner instead.

Anyway, we might asume that the only diference between these options with memory was only the contents of the ROMs that should have the program that is loaded into RAM before executing it. So the very same module was used for all those cases simply burning into ROM the right soft ...
cheers!