Scott Baker has a nice write-up on building a Zeta v2 single board computer designed by Sergey Kiselev:
A few of the features of the Zeta 2:
- 512K Flash Memory, allows CP/M to be booted from Flash, and mounts Flash as a CP/M disk including many tools (assembler, editor, …)
- 512K Flash ROM, can be used as RAM Disk. Supports battery backup.
- 16550 UART provides a single serial port
- 8255 PIO supports up to three 8-bit serial ports
- Dallas 1210 Real-Time Clock
- WD37C65 floppy controller, easily supports 3.5″ PC Floppy Drives
Project info at Scott Baker’s blog.
Check out the video after the break.
flash ROM can be used as RAM disk? and it needs a batterij backup..?
You made my day :)
Dallas 1210 Real-Time Clock is incorrect
it should be a Dallas 1302 RTC.
The DS1210 is the battery backup manager I beleive.