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simtrace/hardware/kicad @ af693b2e

Name Size
  lib
SIMtrace-cache.lib 17.7 KB
SIMtrace.cmp 6.99 KB
SIMtrace.kicad_pcb 648 KB
SIMtrace.net 37.5 KB
SIMtrace.pro 879 Bytes
SIMtrace.sch 51.5 KB
sym-lib-table 312 Bytes

Latest revisions

# Date Author Comment
af693b2e 09/03/2019 03:52 PM Kévin Redon

schematic: rename NP to DNP for clarity

Change-Id: I06c38e353f2b804faa0dcbf4a9405d5d5042af3e
31f31e24 09/03/2019 03:47 PM Kévin Redon

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 surface,
leading to unwanted flash erase (JP2) or false TST signal (JP1)

Change-Id: I7fc6176d8c63ab8274b641e7bcd990093af3c4ca
2ad8ff81 09/03/2019 03:40 PM Kévin Redon

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 read FLAGB do get the error conditions, thus
thus pull-up resistor is not required.

this change has been tested with a real simtrace device....
3df5a7f2 09/03/2019 03:20 PM Kévin Redon

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.
since we don't read VCC_SIM it is not important to have it in a
defined state.
also the card, phone, or simtrace will provide power to the card...
9cb8f504 09/03/2019 03:08 PM Kévin Redon

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 example application, or to not have VCC_SIM
in tri-state.
since we don't read VCC_SIM it is not important to have it in a...
7fc392aa 09/03/2019 12:48 PM Kévin Redon

schematic: make it more readable

- VCC is up
- GND is down
- group the parts by functionality and use net name
- separate decoupling capacitors
- arrange groups from left input to right output

Change-Id: I2d894dd10b8b619ccbce1ae8b7e25316963157c8
9bf63354 08/27/2019 03:31 PM Kévin Redon

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
symbol names have been updated.
some symbols are a bit smaller, requiring to add some wires.

Change-Id: Id8e61aab6f05c633f455ef0d338c1658a62a2c4a
2bdf944c 08/27/2019 03:28 PM Kévin Redon

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 are designed separately.

Change-Id: I9138476c96404e18161b58b7b3a7a450ce633e81

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