Alice 3 v2

by BradGrantham.
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2 layer board of 2.96x4.51 inches (75.08x114.45 mm).
Shared on February 8th, 2016 18:18.

Alice 3 is a through-hole SBC featuring Z80, Propeller, and ARM Cortex 4F (STM32F4).

  • The Z80 runs CP/M 2.2
  • The Propeller handles VGA, and 3 pins are brought out to a 5-pin header including GND and 3.3V
  • The ARM handles SD Card, PS/2 keyboard, and serial console.

We used this board as an opportunity to learn Propeller, ARM Cortex M series, and KiCAD Schematic Capture and PCB layout.

Firmware for the ARM and Propeller and the Z80 bootloader and CP/M BIOS are checked into Github.

This edition of the board fixes some GND and 3V3 traces as well as rotating the SD carrier header 180 degrees so it would be mounted on top.

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