AveMSX!
I have a question for everyone: what is the largest size of the RAM on the Cartridge connector, compatible with most MSX / MSX2 / MSX2 +.
Any examples, please.
In general, I would say that a 4MB Memory Mapper that is automatically initialized (to be compatible with MSX1 BIOS) would be it. But I'm not sure that's what you're looking for.
And some example - a diagram (schematic) or a link to such Cart?
I want to use roms to boot from nl romloader l or sofarun. It doesn't have to be 4MB, it can be even 512KB.
You want to build a cartridge to add 512K or more?
Why build a cartridge with pcb and all if you can build it straight to the mainboard? (not sure how far that works on MSX1 though)
I now read you have several computers. then a cartridge might be one solution for all.
If you only have one computer with too little ram it's better to do an internal ram upgrade. it saves you having to develop/produce a pcb.
There's descriptions of how to do internal upgrading for several computers. Not all though.
I have 8 MSX (and I want even more models). And I would like to try to make one solution for everyone first, if I fail then I will do it inside one by one.
And some example - a diagram (schematic) or a link to such Cart?
To my knowledge, no MSX1 compatible memory mapper diagram is available. To do this, you need a lot of component or an EPM. You have lots of information on the wiki about the Memoy Mapper.
AveMSX!
I have a question for everyone: what is the largest size of the RAM on the Cartridge connector, compatible with most MSX / MSX2 / MSX2 +.
Any examples, please.
Well, my LPE 4Mb (from Radial) expansion served me well on all my machines. Of course, MSX1 included. My HB-20P with 4Mb RAM was funny
Using subslots, the Playsoniq goes to 16Mb. It's still one Cartridge, does it count?