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Archive for the ‘CPLD’ Category

74181 ALU design on Altera MAX II CPLD

Monday, December 21st, 2015

Dilshan Jayakody writes: 74181 is 4-bit arithmetic and logic unit introduced by Texas Instruments in March 1970 and it is known for being the first ALU in single package. This chip is no longer in manufacturing but still it is quite popular in CA (computer architecture) courses in many colleges....

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Posted in Chips, CPLD | 1 Comment »

mbed LPC1768 board with the XC2C64A CPLD board

Tuesday, April 28th, 2015

@torusle tweeted, "My mbed LPC1768 board is about to do some serious jtag business with the CPLD CoolRunner2 board from @dangerousproto"   Get the CoolRunner-II development board for $15 and XC9572XL dev-board  for $15.

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Posted in ARM, CPLD | 1 Comment »

XC2C64A CPLD development board back in stock

Monday, April 6th, 2015

CoolRunner-II XC2C64A CPLD development boards are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the CoolRunner-II development board for $15 and XC9572XL dev-board  for $15.

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Posted in CPLD, News | No Comments »

PyroEDU Online Course: An Introduction to FPGA and CPLD

Friday, June 27th, 2014

PyroElectro just started an online course, An Introduction To FPGA And CPLD, through uReddit.com: Here's a short overview of the course: This course is meant to create a pathway into learning about FPGA and CPLD electronics, for people who are scared of the code, tools and general trickery that usually comes...

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Posted in CPLD, FPGA | No Comments »

XC9572XL CPLD development board back in stock

Thursday, May 15th, 2014

XC9572XL CPLD development board are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the XC9572XL dev-board for $15 and CoolRunner-II development board for $15.

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Posted in CPLD, News | No Comments »

Building a 4bit / 8bit computer in CPLD

Friday, April 4th, 2014

Hackshed crew has been working on a homebrew CPU from scratch in CPLD: Building things on breadboards is fine but I often find that I either need to pinch something from the design, I knock wires out of place or there’s some other reason that it gets destroyed. In order to...

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Posted in CPLD, DIY | No Comments »

CPLD tutorial: 4-bit binary adder

Tuesday, March 4th, 2014

Carl informs us that the Hackshed crew has added a tutorial on building a 4-bit binary adder in CPLD as part of their ongoing CPLD beginner's guide. Via the contact form.

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Posted in CPLD, tutorials | No Comments »

VGA framegrabbing with TVP7002

Thursday, February 13th, 2014

[embed]http://www.youtube.com/watch?v=8bmWkqSN7pw[/embed] desaster blogged about his VGA framegrabber project: The project got a nice boost when I found TVP7002 on TI’s site. It’s a video digitizing chip, featuring 3x ADC (one for each color channel) and a PLL system for generating the pixel clock from the HSYNC input. Compared to alternatives, this seemed...

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Posted in CPLD, FPGA, hacks | 1 Comment »

Using the Bus Blaster to program Lattice CPLDs

Wednesday, January 29th, 2014

Elia writes: One day when playing with the CPLD board I accidentally shorted out two pins on the on-board FT2232 and – unfortunately – the magic smoke escaped! It was very clear that the FT2232 failed because it got very warm when plugging in the USB cable. Luckily the dev...

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Posted in Bus Blaster, CPLD | 2 Comments »

Building a CPLD based logic analyzer

Tuesday, January 21st, 2014

Alex from InsideGadgets has been working on a Building a CPLD Based Logic Analyser. In Part I of his post he details his build of a logic analyzer which saves the sample to external SRAM. For this project Alex used the Altera MAXII EPM240 development board with an on board...

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Posted in builds, code, CPLD, how-to, logic analyzer | No Comments »

XC9572XL CPLD development board back in stock

Wednesday, January 8th, 2014

XC9572XL CPLD development board are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the XC9572XL dev-board for $15 and CoolRunner-II development board for $15.

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Posted in CPLD, News | No Comments »

Altera’s free online technical training courses

Wednesday, July 10th, 2013

Altera is making available a group of free online technical training courses covering the various aspects of FPGA design. Topics include the basics of programmable logic design, Verilog and VHDL basics, as well as introductory and advanced courses on the Quartus II IDE. You can check out the course listings...

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Posted in CPLD, FPGA, site | 3 Comments »

XC9572XL CPLD development board back in stock

Wednesday, March 13th, 2013

XC9572XL CPLD development board are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the XC9572XL dev-board for $15 and CoolRunner-II development board for $15.

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Posted in CPLD | 1 Comment »

Lattice sub-$30 PLD dev boards

Monday, March 4th, 2013

Lattice Semiconductor is once again offering several PLD dev boards for under $30 each. The available boards feature the MachXO2, MachXO 2280, ispMACH 4256ZE and the POWR1014. Each Breakout Board is a 3” x 3” form factor and features GPIO breakout headers, USB B-mini connector for power and programming, an...

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Posted in CPLD, dev boards, FPGA | 23 Comments »

VHDL tutorial using Xilinx CPLD

Sunday, February 3rd, 2013

We're always looking for good information on programmable logic devices, projects and tutorials. In our quest we discovered this tutorial on VHDL programming by the crew from StartingElectronics. The course is geared toward beginneers and provides a good introduction to the VHDL language through a series of tutorials that demonstrate...

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Posted in CPLD, FPGA, site, tutorials | 2 Comments »

Xilinx CPLD design techniques online documentation

Monday, December 3rd, 2012

Xilinx has an online searchable database of information on programming their CPLD devices. It includes a number of cool tips and code samples for implementing bidirectional signals, clock dividers, global nets as well as information on CPLD attributes, the schematic library and controlling I/O pin voltages. In many cases code...

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Posted in CPLD, documentation | No Comments »

XC9572XL CPLD development board back in stock

Friday, November 30th, 2012

XC9572XL CPLD development board v1b are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the XC9572XL dev-board for $15 and CoolRunner-II development board for $15.

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Posted in CPLD | 3 Comments »

Replace vintage computer hard drives with a CF card

Monday, September 24th, 2012

J1mbo updated his XT-CF adaptation of our XT-IDE CPLD board. You can check out his wiki page with all the details about the board, the BOM, and the source files. This board allows vintage XT computers to use CF cards as hard drives, which keeps lots of old industrial and...

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Posted in CPLD, Development | 22 Comments »

DIY 6502 computer using block transfer engine

Friday, September 7th, 2012

Andre Fachat has written a post on his 6502.org blog detailing his DIY 6502 computer build. "I have built a DIY 6502 computer, which is mostly TTL logic only except for 65xx chips and ROMs, but the most TTL-ish part is the blitter: A block transfer engine that DMAs memory...

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Posted in CPLD, DIY, vintage | 1 Comment »

XC9572XL CPLD development board back in stock

Thursday, August 30th, 2012

XC9572XL CPLD development board v1b are back in stock at Seeed Studio. CPLDs are programmable logic gate arrays which allow you to build custom logic devices simply by programing them. Get the XC9572XL dev-board for $15 and CoolRunner-II development board for $15.

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Posted in CPLD | 1 Comment »

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