November 4, 2016 AT 12:00 am
icehat – Raspberry Pi ice40 Ultra FPGA hat #piday #raspberrypi @Raspberry_Pi
Thanks to Drew for sharing – more info
What is it?
The icehat is a small (Raspberry Pi Zero-sized) board with a Lattice ice40 Ultra FPGA and three Digilent-compatible 8-bit PMOD receptacles.
Lattice iCE5LP4K-SG48 FPGA with
4 Multiplier/Accumulate blocks
20x 4kb RAMs
OTP Non-volatile configuration memory
2 I2C cores
2 SPI cores
3 24ma OC LED drivers
single 5V supply from RPi Header
3.3V 300ma regulator for FPGA I/O
1.2V 300ma regulator for FPGA core
4x Diagnostic LEDs (1 Configuration status, 3 FPGA user defined).
3x 12-pin Digilent-style PMOD connectors with 8 FPGA I/O each and selectable supply voltage.
Dedicated SPI port between RPi and FPGA
I2S between RPi and FPGA
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