Activity
From 08/23/2019 to 09/21/2019
09/03/2019
- 07:26 PM Revision 06b45f17 (simtrace): schematic: mark P1 and P2 as dot no place
- P1 (JTAG) and P2 (FTDI UART) are onlz needed to be placed on
boards meant for development.
this can by done by hand s... - 07:13 PM Revision bea9406b (simtrace): schematic: mark USB reset circuit as dot no place
- the additional circuit to reset USB (by pulling D+ low) is not
required anymore since the USB controller in the SAM3S... - 06:33 PM Revision 614ce7a7 (simtrace): schematic: mark R19 as dot no place
- R19 pulls VCC_PHONE low for better power on detection.
but the voltage divider R20 + R21 also pull this line low usin... - 03:52 PM Revision af693b2e (simtrace): schematic: rename NP to DNP for clarity
- Change-Id: I06c38e353f2b804faa0dcbf4a9405d5d5042af3e
- 03:47 PM Revision 31f31e24 (simtrace): schematic: mark JP1 and JP2 as dot no place
- the protruding through hole pins of the header for the jumper
might get shorted when the board lies on a conductive s... - 03:40 PM Revision 2ad8ff81 (simtrace): schematic: mark R22 as dot no place
- R22 is use to pull the FLAGB output of the FPF2109 high since this
is an open-drain output.
but we actually don't rea... - 03:20 PM Revision 3df5a7f2 (simtrace): schematic: mark R24 as no place
- R24 is pulling the voltage regulator output for VCC_SIM down.
it has probably been added at the same time as R15.
sin... - 03:08 PM Revision 9cb8f504 (simtrace): schematic: mark R15 as no place
- R15 is pulling VCC_SIM down.
it has probably been added because a load resistor is present in
the FPF2109 datasheet e... - 12:48 PM Revision 7fc392aa (simtrace): schematic: make it more readable
- - VCC is up
- GND is down
- group the parts by functionality and use net name
- separate decoupling capacitors
- arra...
08/27/2019
- 03:31 PM Revision 9bf63354 (simtrace): updated libraries to KiCad 5
- the library system changed from KiCad 4 to KiCad 5.
the custom libraries have been re-added to the project, and all
s... - 03:28 PM Revision 2bdf944c (simtrace): remove unused cable project
- the layout for the FPC cable was not existing, and the schematic
is not an actual part of SIMtrace.
the FPC cables ar...
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