Fomu FPGA board fits inside a USB port, Supports Python, RISC-V Softcore

Fomu FPGA Board

Sutajio Ko-usagi launched Tomu, a tiny open source hardware USB board that fits inside a USB port at the very beginning of this year. The company is back with a similarly shaped board, but instead of featuring a Silicon Labs EFM32 Arm Cortex-M0+ microcontroller, Fomu is equipped with a Lattice ICE40 UltraPlus FPGA. Fomu specifications: FPGA – Lattice ICE40UP5K FPGA with 5280 logic cells System Memory – 128 kB RAM for a soft CPU Storage – 1 or 2 MB SPI flash Clock – 48 MHz crystal oscillator USB – 1x USB 2.0 FS (12 Mbps) port Misc – 4x buttons, 1x RGB LED The default Fomu firmware exposes a USB bootloader running a RISC-V softcore, and the platform is powerful enough to run a port of Python. It’s also possible to experiment with LM32 and OpenRISC softcores on the platform. Using the board is pretty straightforward as just you need to insert it into one of the port of …

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TinyFPGA BX is a Tiny Open Source Hardware iCE40 FPGA Board that Fits into a Breadboard (Crowdfunding)

Last Friday, I wrote about Fipsy, a $10 breadboard-friendly FPGA board powered by Lattice Semi MachXO2 FPGA with 256 LUTs, but I then remember I had covered a board somewhat similar with TinyFPGA board last year based on either the same MachXO2-256 (TinyFPGA A1), or a slightly more powerful  MachXO2-1200 FPGA (TinyFPGA A2). It happens the developer is now running a crowdfunding campaign on Crowdsupply for TinyFPGA BX board, which can be used with a breadboard, and is powered by Lattice Semi ICE40LP8K FPGA that will offer more flexibility thanks to 7,680 LUTs. TinyFPGA BX specifications: FPGA – Lattice Semi ICE40LP8K FPGA with 7,680 four-input look-up-tables, 128 KBit block RAM, Phase Locked Loop Storage – 8 MBit of SPI Flash Expansion 2x 14-pin header for I/Os, GND and Vin 21x solder pads on back of the board USB – 1x micro USB 2.0 FS port for programming Oscillator – 16 MHz MEMs oscillator; 1.3 mA power when active; 50 ppm …

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Fipsy is a $10 Breadboard-Friendly FPGA Board for Education (Crowdfunding)

We’ve already seen several cheap FPGA boards in the past with the $25 miniSpartan3 (Xilinx), $34 Spartixed (Xilinx), or 40 Euros Olimex iCE40HX8K-EVB boards (Lattice), but if you have a really tight budget you can now plat with FPGA for just $10 thanks to Fipsy board. With its 256 LUTs Lattice Semi MachXO2 FPGA, you’ll be limited to what you can do for specific projects, but it could be useful to teach yourself or students FPGA programming, especially it also happens to be breadboard-friendly. Fipsy specifications: FPGA – Lattice Semiconductors MachXO2 (LCMXO2-256HC-4SG32C) FPGA @ 269 MHz max. with 256 LUTs, 2 kbit Distributed RAM, 32 LABs (Logic Array Blocks) Programmable by SPI and I2C Expansion – 2x 10-pin header supporting various interfaces including: LVCMOS 3.3/2.5/1.8/1.5/1.2  LVTTL  LVDS  Bus-LVDS  MLVDS  RSDS  LVPECL SSTL 25/18 HSTL 18 Schmitt trigger inputs, up to 0.5 V hysteresis Misc – Onboard LED Operating Supply Voltage – 3.3 V The “Basic Setup” tutorial explains how to create a …

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TinyFPGA is a Breakout Board for Lattice Semi MachXO2 FPGA

We’ve covered several low cost FPGA boards over the years, but if you want a platform with the bare minimum, you may be interested in tinyFPGA breakout board based on Lattice Semi MachXO2 FPGA board that comes with two flavors: A1 with MachXO2-256, and A2 with the more powerful MachXO2-1200 FPGA. TinyFPGA board specifications: FPGA A1 board – Lattice MachXO2-256 with 256 LUTs, 2 kbits distributed RAM A2 board – Lattice MachXO2-1200 with 1280 LUTs, 10 kbits distributed RAM, 64 kbits EBR SRAM, 64 kbits  flash memory, and a PLL (See datasheet for MachXO2 family) Built-in flash configuration memory programmable via JTAG  I/Os 18 user IOs (21 with JTAGEN) 1x SPI Hard-IP 2x I2C Hard-IPs A2 board only – 1x PLL Hard-IP Power Supply – 3.3V Dimensions – ~3.05 x 1.8 cm You’ll need a JTAG programmer for Lattice FPGA as well as Lattice Diamond software – available for Windows and Linux – to program the FPGA board. TinyFPGA boards …

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IceZero Lattice iCE40 FPGA Board is Designed for Raspberry Pi Zero

Yesterday, we reported about Olimex’s open source hardware iCE40HX8K-EVB board with a Lattice iCE40 (HX8K) FPGA, and today, another iCE40 FPGA board, also open source hardware, appeared in my news feed with Trenz Electronic’s IceZero board specifically designed to be programmed using a Raspberry Pi Zero board. IceZero board specifications: FPGA – Lattice ICE40HX4K with 3520 logic gates, and 80 Kbit memory Storage – SPI Flash for FPGA self-configuration Misc – 3x User LEDs;  User Clock: 100 MHz Expansion – 4x unpopulated PMOD Connectors; 40-pin Raspberry Pi female header Dimensions – 56 x 30.5mm (Raspberry Pi HAT Compatible) The board is supported by icoTC open source FPGA toolchain for Windows and Linux, which you can use in Raspberry Pi Zero (W), and other RPi board with a 40-pin header running Raspbian, as explained in that simple example in Github. Trenz electronic only shared part of the documentation, but you’ll find everything on a blog post on Black Mesa Labs with …

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Olimex Introduces 40 Euros iCE40HX8K-EVB Board with Lattice ICE40 FPGA

Last year, Olimex launched their first FPGA board with iCE40HX1K-EVB. The board is very cheap at 22 Euros, but what you can do with it is limited since it only comes with 1280 logic cells. The company has now introduced an upgraded model called iCE40HX8K-EVB with 7680 logic cells, and more I/O headers. Olimex iCE40HX8K-EVB specifications: FPGA – Lattice Semi iCE40HX8K-CT256 FPGA with 7680 logic gates, 960 Logic Array Blocks, and 128 Kbit memory System Memory – 256Kx16 SRAM (512KB SRAM) Storage – 2MB serial flash Expansion 34-pin connector to access FPGA I/Os 4x 40 pin connectors for GPIOs Debugging / Programming – 10-pin “PGM” connector Misc – 2x user buttons, reset button, 2x user LEDs, power & programming status LEDs Power Supply – 5V via power jack Dimensions – 67×65 cm The board is open source hardware with the KiCAD schematics and PCB layout, BoM, and Gerber files available on Github. Lattice IceCube2 or Project IceStorm can be used …

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Olimex iCE40HX1K-EVB Open Source Hardware Lattice FPGA Development Board To Sell for 22 Euros

Olimex has showcased a prototype of their small (5×5 cm) iCE40HX1K-EVB development board powered by Lattice Semi iCE40 FPGA, programmable with OLinuXino development boards via the UEXT interface, and compatible with Project Icestorm open source toolchain for Lattice iCE40. iCE40HX1K-EVB specifications: FPGA – Lattice Semi iCE40HX1K-VQ100 FPGA @ up to 533 MHz with 1280 gates, 160 Logic Array Blocks, and 64 kbit memory System Memory – 256Kx16 SRAM (Samsung K6R4016V1D-TC10 ) Storage – 2MB serial flash Expansion UEXT connector for programming 34-pin header to access FPGA I/Os Misc – 2x user buttons, reset button, 2x user LEDs Power Supply – 5V via power jack Dimensions – 5×5 cm (4-layer PCB) The company has also made four stackable add-on boards to connect to the 34-pin expansion header: iCE40-ADC fast 100Mhz ADC with BNC input connector for Digital Storage Oscilloscope (DSO) with up to 512 KB buffer iCE40-DAC fast 100Mhz DAC with BNC output connector for Direct digital synthesizer (DDS) generator iCE40-DIO …

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Lattice and Mediatek Announce superMHL Smartphone Reference Designs Supporting 4K over USB-C

Two standards are competing to bring 4K video output @ 60 Hz and 8K over USB type C connectors: DisplayPort 1.4 and superMHL. Lattice, who purchased Silicon Image last year, and Mediatek have collaborated to provide reference designs supporting superMHL and based on Helio X20 deca-core processor combined with Lattice components. Lattice SiI8348 MHL transmitter would handle 4K 60 fps video and MHL power, while Sil7033 USB type-C port controller would also handle USB 3.1 data transfer up to 10 Gbps, USB-C power delivery (PD), MHL Alt-mode on USB-C. Lattice also leverage their SiI7013 mobile USB Typer-C port controller, SiI9396 mobile superMHL/MHL to HDMI bridge, and other chips to offer accessories such as USB-C to HDMI adapters, MHL cables, USB-C charger, and USB-C dock with multiple USB ports and HDMI output. Anandtech notes that one the main problem with USB type C connector is likely to be the cable, as many of them are not fully compliant and some even dangerous, …

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