Change History#
This section describes the change history of this document and board. Document changes are not always a result of a board change. A board change will always result in a document change.
Document Change History#
Rev |
Changes |
Date |
By |
|---|---|---|---|
A.x |
Production Document |
December 7, 2017 |
JK |
0.0.5 |
Converted to .rst and gitlab hosting |
July 21, 2022 |
DK |
Board Changes#
Rev |
Changes |
Date |
By |
|---|---|---|---|
A1 |
Preliminary |
February 14, 2017 |
JK |
A2 |
Production. Fixed mikroBUS Click reset pins (made GPIO). |
September 22, 2017 |
JK |
A2a |
Fixed label on P2_24. Was labeled GPIO48, should be GPIO44. |
November 7, 2017 |
JK |
A2b |
Because there are 2 TI parts which have long lead-time, we made the following changes:
|
June 15, 2021 |
JK |
PocketBone#
Upon the creation of the first, 27mm-by-27mm, Octavo Systems OSD3358 SIP, Jason did a hack two-layer board in EAGLE called “PocketBone” to drop the Beagle name as this was a totally unofficial effort not geared at being a BeagleBoard.org Foundation project. The board never worked because the 32kHz and 24MHz crystals were backwards and Michael Welling decided to pick it up and redo the design in KiCad as a four-layer board. Jason paid for some prototypes and this resulted in the first successful “PocketBone”, a fully-open-source 1-GHz Linux computer in a fitting into a mini-mint tin.
Rev A1#
The Rev A1 of PocketBeagle was a prototype not released to production. A few lines were wrong to be able to control mikroBUS Click add-on board reset lines and they were adjusted.
Rev A2#
The Rev A2 of PocketBeagle was released to production and launched at World MakerFaire 2017.
Known issues in rev A2:
Issue |
Link |
|---|---|
GPIO44 is incorrectly labelled as GPIO48 |
Rev A2B#
Because 2 TI parts had a long lead time, we made the following changes:
Change # | Modification |
Reference Designators |
Part Type |
Before（value ） |
After（value) |
||
|---|---|---|---|---|---|---|
1 |
Changed C2,C3 from 18pF to 22pF. |
C2,C3 |
Cap Ceramic |
18pF |
22pF |
|
2 |
Changed Y1 from 24MHz_18pF to 24MHz_22pF. |
Y1 |
Crystal |
24MHz_18pF |
24MHz_22pF |
|
3 |
Use ESD discrete devices(D1-D4) to replace U3. |
U3 |
ESD Solution |
integrated |
ESD discrete devices(D1-D4) |
|
4 |
Changed U2 from SN74LVC1G07DCKR to 74LVC1G07GV,125. |
U2 |
Logic |
SN74LVC1G07DCKR |
74LVC1G07GV,125 |
|
5 |
The PCB Revision for this board is Rev A2b. |
The PCB Revision for this board is Rev A2b. |
||||
