FreeCalypso > hg > freecalypso-reveng
annotate pirelli/usb @ 279:a7707c174510
pirelli/{rssi,txcal}: results of the Pirelli to CMU200 experiment
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 16 Feb 2019 18:30:11 +0000 |
parents | 7a84f9e42a84 |
children |
rev | line source |
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9
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
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1 All PCB trace connections to the USB connector are made on the outer layer |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
2 on the battery/SIM side of the PCB; none on the display/keypad side or on any |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
3 of the inner layers. |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
4 |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
5 The L1 copper image from steve-m shows that the ID pin appears to be totally |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
6 unconnected. The GND, VBUS and data pair connections appear the way one would |
7a84f9e42a84
Pirelli PCB: failed attempt at tracing out the 4 under-SIM test points
Michael Spacefalcon <msokolov@ivan.Harhan.ORG>
parents:
diff
changeset
|
7 expect. |