SD Card Mux

Registered by Zach Pfeffer on 2012-02-29

We've got a preliminary design for an SD card mux. We'll try and get some boards made and make this very useful tool a reality this cycle.

See notes at:
https://docs.google.com/a/linaro.org/document/d/1drYtJnkA_YmeiP_4yU-VfsU5a11etcyCE2rvJeFwsC4/edit

Blueprint information

Status:
Started
Approver:
Zach Pfeffer
Priority:
High
Drafter:
Zach Pfeffer
Direction:
Approved
Assignee:
Zach Pfeffer
Definition:
Approved
Series goal:
Accepted for obsolete
Implementation:
Good progress
Milestone target:
milestone icon obsolete
Started by
Zach Pfeffer on 2012-02-29

Related branches

Sprints

Whiteboard

Notes:
[2012/2/28 pfefferz] Put notes here.
[2012/3/8 zkrynicki] each SD card muxer must have unique serial number readable from the host. Without this they will be useless.
[2012/3/20 pfefferz] No they won't. The current design just routes an SD card to both an SD card programmer and a target. I want each board to be hooked to a mother PC that acts as a buffer between the target under test and the outside world so we can streamline the interface between the test controller and the test nodes.
[2012/3/27] Good progress. Waiting for boards. Will move this onto 12.04.
[2012/4/23 asac]: please move to lava-lab project with medium prio. thanks
[2012/4/30] Tracked in lava-lab. Moving off deck.
[2012/5/14] See https://blueprints.launchpad.net/lava-lab/+spec/sd-card-mux for the current issue

Meta:
Roadmap id: ANDROID2012-Q1-TOOLS
Headline: Linaro has built the world's first SD card mux.
Acceptance: 10 SD card muxes that work

(?)

Work Items

Work items:
Design board: DONE
Make schematic: DONE
Get schematic reviewed: DONE
[x0132446] Do layout: DONE
Prepare slide deck: DONE
[x0132446] Get first boards: DONE
Write justification: TODO
[x0132446] Assemble: DONE
[x0132446] Test: DONE
[x0132446] Get second boards: INPROGRESS
[x0132446] Assemble second boards: TODO
[x0132446] Test second boards: TODO
Work with LAVA to integrate: TODO

This blueprint contains Public information 
Everyone can see this information.