snickerdoodle

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Jul 19, 2017

In Search of Yield Issue Root Cause

snickerdoodlers,

Quick update on what’s been happening with snickerdoodle:

Work continues on establishing the root cause of this ridiculous manufacturing yield issue. We have been around and around with Xilinx support, our contract manufacturer, and our parts vendors…discovering seemingly promising evidence at every step along the way that ultimately turns up a dead end. Days, weeks, and months of troubleshooting, testing, reworks, and reworks of reworks have left us continuing our search.

The one “reassuring” aspect of an otherwise dumbfounding situation is both the failure AND the remedy are very specific to the Zynq and very repeatable - unfortunately the ‘remedy’ can’t be practically implemented in shipped product, so we really need to figure out what is causing the problem.

piSmasher is progressing, although snickerdoodle has taken a front seat.

In both cases, it is a matter of “when,” not “if” we will get these issues resolved and (finally) move everything to volume production. We kindly ask that you bear with us a little bit longer. Please also understand this is an extremely stressful situation for everyone involved. We are more eager than anyone to get back to building & shipping product and we are working day and night to make that happen.

As always, if you’d like to contact us, please email us hello@krtkl.com or tweet us at @krtkl_inc and we’ll get back to you as soon as possible.

Kind regards,
the krtkl crew

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$95

snickerdoodle one

Dual-Core 667MHz ARM Cortex-A9 w/430K ASIC gates, 155 reconfigurable I/O, 512MB LPDDR2 RAM, 2.4GHz 802.11n Wi-Fi.


$145

snickerdoodle prime LE

Dual-Core 667MHz ARM Cortex-A9 w/1.3M ASIC gates, 180 reconfigurable I/O, 512MB LPDDR2 RAM, 2.4GHz 802.11n Wi-Fi, copperHead heat sink.


$195

snickerdoodle black

Dual-Core 866 MHz ARM Cortex-A9 w/1.3M ASIC gates, 180 reconfigurable I/O, 1GB LPDDR2 RAM, 2.4GHz + 5GHz 802.11n 2x2 MIMO Wi-Fi, Bluetooth Classic & BLE, copperHead heat sink, free SDSoC license.


$45

breakyBreaky breakout board

Full snickerdoodle pinout (270 pins) on 0.1” headers, JTAG connector, DC power jack. Note: order your snickerdoodle connectors "down".


$195

piSmasher SBC

HDMI in AND out, 2x Gigabit Ethernet, 4x USB 2.0 high-speed, 25 reconfigurable I/O, DC power jack. Note: order your snickerdoodle connectors "down".


$30

12V/36W International Wall Wart

36W/12V wall-mount power supply for use with snickerdoodle baseboards.


$65

cookieJar enclosure

A beautiful enclosure machined out of 6061 aluminum, bead blasted, anodized, and laser engraved. Also serves as heat sink. Note: this enclosure is only compatible with connectors “up” snickerdoodle.


$15

pin housings + jumpers

All seven mating snickerdoodle connectors and a 50-pack of (loose) jumpers - see below for jumper description for benchtop-prototyping; no baseboard needed.


$5

copperHead heat sink

High-performance copper heat sink. Note: included with snickerdoodle black.


$30

32GB microSD card (pre-loaded)

32GB U3 Speed Class microSD card pre-loaded with snickerdoodle Ubuntu Linux.


$10

jumpers (50 pack)

7.5" (19cm) long with Samtec pins on one end (for installing into pin housings, above) and 0.1" female “maker” pins/housings on the other. Note: includes jumpers (50 pack) only.


$7

baseboard headers

All seven connectors needed for building your own snickerdoodle baseboard; mates with snickerdoodle connectors “down”.

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krtkl


Ryan Cousins

Jamil Weatherbee

Russell Bush

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