s-ol / up5k

Upduino v2 with the ice40 up5k FPGA demos

Upduino v2 examples with apio/icestorm

Several demos showing how to use apio with the icestorm toolchain and the Upduino (ice40 UltraPlus 5k) FPGA dev board.

Demo	Description
blink	Flash the RED LED in a pulse-pulse, pulse-pulse pattern
pulse	Smoothly ramp the RGB LED through a color change pattern
serial	Print a repeating message on the serial port at 1 Mbs
seral-echo	Read from the serial port, echo it back at 3 Mbs

Setup

install apio. then install the toolchain etc:

apio install system icestorm scons iverilog

Running

cd pulse
apio upload

Schematics and pinout

Schematics for the upduino: https://github.com/gtjennings1/UPDuino_v2_0

Note that the upduino_v2.pcf file disagrees with the serial port in the pinout and schematic. The pins were determined through experimentation and seem to work (and the ones in the pinout do not).

UltraPlus 5K overview

Overview: http://www.latticesemi.com/Products/FPGAandCPLD/iCE40UltraPlus

Datasheet: http://www.latticesemi.com/-/media/LatticeSemi/Documents/DataSheets/iCE/iCE40-UltraPlus-Family-Data-Sheet.ashx