Just a short information entry – yesterday my development life regarding Vectorblade made a big step towards being easier for me.
Again I have to thank Thomas for that. What you see above is a VecFever with one handwire connecting the IRQ-line of the cartridge port to an IO pin of the ARM.
With the correct firmware update (starting with v1.18) the IRQ-Line can be configured to act as address line A17 from the Vectrex (see: old blog entry).
What it boils down to is, that I can now use the VecFever again as my development tool of choice and I can test all Vectorblade doings of mine again directly on my Vectrex (from Vide with serial connection) without having to flash every other minute. VecFever thus supports carts using 4*48k banks with PB6 + IRQ bankswitching.