Recent content by rw6hrm

I want to introduce you my CP/M compatible single-board computer called "Ayusha-Z80" (let's talk "AZ80" so that the name was shorter :)). Small english description posted at https://www.qsl.net/rw6hrm/html/z80sin_brdeng.htm . I think it compatible with RC2014 kit. Sorry, but the rest of my site...

Hi, there is a short version of description of my homebrew 6502 SBC, http://www.qsl.net/rw6hrm/html/6502sbc_en . Sorry for my broken english :rolleyes: This SBC (named "Ayusha" :)) contains 47K RAM, 16K ROM (4 switched pages from 64K chip), 8255, 8253, 68B50. Programming at classic Basic. Also...

So, I have HX-20 with internal 48K RAM expansion board (I think it's produced by P and M Data Services). But my computer is not recognized this unit and working only with base 16K memory :( . All chips on the board are okay, computer are working properly... May be installation of this board...