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55 lines
2.4 KiB
Plaintext
Executable File
55 lines
2.4 KiB
Plaintext
Executable File
[[change-history]]
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== Change History
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This section describes the change history of this document and board.
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Document changes are not always a result of a board change. A board
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change will always result in a document change.
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[[document-change-history]]
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=== Document Change History
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This table seeks to keep track of major revision cycles in the documentation. Moving forward, we'll seek to align these version numbers across all of the various documentation.
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.Change History
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[[change-history-table, Change History]]
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[cols="1,7,2,1",options="header",]
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|=======================================================================
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|*Rev* |*Changes* |*Date* |*By*
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|0.0.1 |AI-64 initial prototype |September 2021 |James Anderson
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|0.0.2 |AI-64 final prototype |December 2021 |James Anderson
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|0.0.3 |AI-64 initial production release |June 9, 2022 |Deepak Khatri and Jason Kridner
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|0.0.4 |AI-64 DFM update |June 13, 2022 |Jason Kridner and Deepak Khatri
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|=======================================================================
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[[board-changes]]
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=== Board Changes
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Be sure to check the board revision history in the schematic file in the
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https://git.beagleboard.org/beagleboard/beaglebone-ai-64[BeagleBone AI-64 git repository].
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Also check the https://git.beagleboard.org/beagleboard/beaglebone-ai-64/-/issues[issues list].
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[[rev-B]]
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==== Rev B
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We are starting with revision B based on this being an update to the BeagleBone AI. However, because this board ended up being so different, we've decided to name it BeagleBone AI-64, rather than simply a new revision. This refers to the Seeed release on 21 Dec 2021 of "BeagleBone AI-64_SCH_Rev B_211221". This is the initial production release.
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[[rev-B1]]
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==== Rev B1
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This revision was made based on design-for-manufacturing updates after the initial production pilot run.
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This refers to the Seeed release on 02 Jun 2022 of "BeagleBone AI-64_SCH_Rev B1_220602".
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The changes are:
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* MH4, MH5, MH6, MH7: Changed the hole diameter from 4.5MM to 4.4MM.
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* R0201, C0201: Changed the distance between two pads from 0.28MM to 0.23MM.
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* Type C Connector J5: Changed the diameter of location hole from 0.65MM to 0.75MM.
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* Wave SoIdering: Moved D43 D44 away from J5; Moved C440 away from J7.
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* PCB Revision: Added "B1" on the PCB bottom for internal record.
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image::images/ch02/revb1.png[title="Rev B1 markings"]
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image::images/ch02/revb-revb1-change.png[title="Changes between rev B and rev B1"]
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