6502 digital clock

A slightly over engineered clock? 32KB RAM, 16KB ROM, 4Mhz 8bit 65C02 CPU running EHBASIC

 

Now two SPI devices: a DS3234 RTC and a MAX7219 7 segment driver (top right). And wired for a third (SD Card?). They're all sharing Clock and Data lines to the 6522 VIA.

Done