Hi, i've realized a z80 sbc with flash, ram, 3 output port and 1 input port.
On one of the out port i've placed the LCD display and on the one pin of the In and Out port i've placed a DS18B20 temperature sensor interfaced with a 7407 for the open collector DS18B20 needed signal.
It works fine and you can see the temperature on the LCD display.
Hi Luigi;
I'm really interested to your z80 project. Do you can share it? Especially the paging for the big flash and ram, and the flash routines are interesting...
I'm (was) an old z80 fan :|
Thanks
zuisti
Hi Luigi;
I'm really interested to your z80 project. Do you can share it? Especially the paging for the big flash and ram, and the flash routines are interesting...
I'm (was) an old z80 fan :|
Thanks
zuisti
Hi zuisti,
excuse me if i reply only now.
In this days i pubblic on this topic the schematics and the PCB of my Z80 SBC.
I'm working also on the BUS expander, to expand the system, video board, a flash ZIF socket expander to easy program the flash and finally a bootloader circuit and firmware that permit to program the entire system with RS232 serial port.
Luigi.