App note: Using a microprocessor to configure Xilinx FPGAs via slave serial or selectMAP mode

Great app note from Xilinx on configuring their FPGA through slave serial and parallel selectMAP mode This application note describes a technique for configuring an FPGA from an embedded processor. Three common components are required: an embedded microprocessor, some non-volatile memory, and a CPLD. Cost, as well as real estate, can be reduced if the […]

App note: Xilinx in-system programming using an embedded microcontroller

Program Xilinx’ CPLDs and FPGAs with the aid from this app note. By using a simple JTAG interface, Xilinx devices are easily programmed and tested without using expensive hardware. Multiple devices can be daisy-chained, permitting a single four-wire Test Access Port (TAP) to control any number of Xilinx devices or other JTAG-compatible devices. The four […]

Saturn – Another attempt to make open source Spartan 6 FPGA board with DDR SDRAM

Tom of Numato Lab writes: We made a failed attempt to design and build a FPGA development board with DDR SDRAM last year. But this year we tried again and successfully built and tested a Spartan 6 FPGA board with DDR SDRAM. This board was built using KiCad and other open source tools. And best […]

Driving an LCD from a broken laptop with an FPGA via the Papilio Plus board

Alex connected up an salvaged laptop LCD to his Papilio Plus FPGA development board. He is designing a pair of boards for easier interface, one is designed as a wing for the dev board, and the other as a breakout for the LCD. They’ll be connected together via an HDMI cable, even though the protocol […]

Program Actel FPGAs with the Bus Blaster using DAT files

Mikelelere modified Actel’s DirectC 2.7 programming utility to support the Bus Blaster. With his modifications you should be able to program Actel’s FPGAs using programinn DAT files. The Bus Blaster is a high-speed JTAG debugger for ARM processors, FPGAs, CPLDs, flash, and more. You can get a Bus Blaster v2 for $34.95 at Seeed. Via […]

Pipistrello: Spartan 6 development board with 64MB of RAM, High Speed USB, and HDMI

Magnusk designed the Pipistello Spartan 6 development board with the same IO headers as the Papilio One. It features 64MB of RAM running at 200Mhz, the FDTI FT2232H High Speed USB IC, HDMI output, and a micro-SD card holder. So the only option left was to make my own board – basically merging the FPGA […]

AltOR32: An OpenRISC CPU for small FPGAs

Ultra-Embedded designed a soft core 32bit openRISC CPU with basic ISA functionality for small FPGAs. It fits on the Spartan 3 featured on the Papilio One 250k development board, and comes in pipelined and  multi-cycle versions. AltOR32 is an OpenRISC 1000 architecture derived RISC CPU targeted at small FPGAs and contains only the most basic […]

Camera Wing for Papilio One PCB giveaway at Gadget Factory

Gadget Factory is giving away 8 Papilio One Camera wing PCBs . This can be used with a FPGA and some open VHDL code to display video on a PC. The first 8 people to send an email with a shipping address to support@gadgetfactory.net will get the free PCB’s! (Note: this is a bare PCB […]

FPGACheap DIY Altera FPGA USB programmer

This is a DIY USB programer for Altera FPGAs. It only uses a PIC uC and a few discrete components to provide a JTAG interface with a FPGA. Somun found it on a Japanese site (machine translation), and with the help of Google Translate he built one for himself. There are two versions available. The […]

Lattice announces Diamond release 1.3

Lattice Semiconductor has just announced Lattice Diamond® release 1.3, updating their FPGA design software environment. They write: This release further builds on helping FPGA designers reach their goals for cost sensitive and low-power applications. In addition to its industry-leading Power Calculator, Lattice Diamond 1.3 software now aids migrating a design to a lower cost device […]

FPGA bitstream security broken

Researchers in Germany have released two papers detailing how security of the bitstream on Xilinx FPGAs can be compromised. The first paper (11 pages) discusses power analysis attacks and extracting keys from Virtex-II devices. The second (3 pages) describes an analysis of the Virtex 4 and 5 bitstream encryption mechanism. Via Slashdot.

Plunify online FPGA compiler conference call

MP3 download Plunify is an online compiler for Altera and Xilinx CPLDs/FPGAs. The developers’ goal is to build an interface to instant license and computer resources for large FPGA projects. Download the MP3 to hear more about their start-up and some of the difficulties they face with compiler licensing. We’re interested in Plunify because it […]