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David Anders (prpplague)
Works at Intel
Lives in Dallas, Texas
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This day in 1949 EDSAC ran its first program. You can catch up on videos of the reconstruction project here.
Date, Video title. Apr 2016, EDSAC's Computer memory - delay lines. Jan 2016, Commissioning EDSAC - technical discussions. Dec 2015, EDSAC's VDU screens. Dec 2015, Joining the Dots. Sep 2015, Snagging: ironing out the circuit bugs. Mar 2015, Trustees review progress and look at the educational ...
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Too Much Solder Paste Is a BAD THING!
one of my earlier assemblies i had notice what looked like beads of solder under the SOIC16. i desoldered this one to see what it looked like... sure enough, two large beads of solder... fortunately, i've made a change to less paste and more accurate placement, so i shouldn't have this problem again...
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Gordon McLellan's profile photoDavid Anders (prpplague)'s profile photo
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+Gordon McLellan - yea those were symbols on the bottom of the IC. the gold color is the flux and overheating when i desoldered the chip...
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I swear, originally, it was a joke. But the good jokes catch on and you can't beat fun. So this unit is meant to be a demonstration/attraction that illustrates where/how computers started, a century ago. It's not a real computer but a toy calculator that takes two 16-bits operands (in binary/hex, let's be educational!) and performs add/subtract/multiply/divide "the old way" (when ENIAC was still a thing). After it is completed, it should be ...
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This is a really nice photo gallery of the Bletchley Park gear, which was used to crack Nazi Germany's Enigma encryption.
The story of how Bletchley Park codebreakers decrypted top secret Nazi communications
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SOIC16 Before Reflow Oven
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Olimex and +Tsvetan Usunov​ continuing to be leaders in the open source hardware community...
 
iCE40HX1K-EVB is our first iCE40 FPGA which works with ICESTORM FOSS toolchain. It’s 5×5 cm 4 layer board with iCE40HX1K on it, 512KB 10 nS fast SRAM, UEXT as programming connector, so y…
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Too Much Paste Again...
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Refik Hadzialic's profile photoRasmus Backman's profile photoRuss Dill's profile photoDavid Anders (prpplague)'s profile photo
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+Russ Dill - looks like delivery times vary, i've never gotten a oshstencil package in less than 10 days.... i usually use pcbway.com and they've been very consistent with 3 to 4 day delivery times...
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We are pleased to announce that registration for Linaro Connect Las Vegas 2016 (LAS16) – has opened.
Announcement: http://linaro.co/las16go
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Dates: Monday 26th – Friday 30th September 2016
Venue: JW Marriott Las Vegas Resort & Spa
Registration: http://linaro.co/las16get
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embedded devs, slot machines and jtag leads - what could go wrong?
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Solder Paste Dispensing for SOIC16
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David Anders (prpplague)'s profile photoGwen Patton's profile photo
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That works, thanks!

I just finished the basic construction of an autotuner for our Elecraft K2 transceiver this afternoon. Now comes installing it in the radio!
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Work
Occupation
Open Hardware Design Engineer
Employment
  • Intel
    Open Hardware Design Engineer, 21045 - present
  • CircuitCo
    Embedded Systems Developer, 2013 - 2015
  • Texas Instruments
    Embedded Linux Developer, 2010 - 2013
Basic Information
Gender
Male
Other names
prpplague
Story
Tagline
Embedded Linux Developer
Introduction

I am an embedded systems engineer specializing in the integration of hardware and software at the lowest levels utilizing Open Source tools, bootloaders, and operating systems such as Linux to rapidly produce quality products. Past product developments have included the TCSX-1 thin client for Advantage Business Computer Systems, the M5900 handheld for American Microsystems Ltd., and the PandaBoard for Texas Instruments.

My specialty is complex problem solving to provide rapid solutions to both hardware and software issues. This includes reverse engineering existing legacy projects as well as processing, assimilating and filtering large amounts of datasheets, schematics, software source code, and management specifications.

Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Dallas, Texas
Previously
Longview, Texas - Bridgetown, Barbados