Commit Graph

19 Commits

Author SHA1 Message Date
e32b48a72e hardware: pcb: initial commit
This is an initial commit.  Still unclear of how big it will be, but
this is a good "minimum size" estimate.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 16:03:55 +08:00
1acf50df39 hardware: sch: use footprints from tomu-fpga
Use our local copy of footprints, which are guaranteed not to change
between Kicad versions.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 16:03:06 +08:00
f3315b58d8 pcb: add our own copies of 3d models and footprints
The Kicad default footprints seem volatile and unreliable.  Going
between two machines that both have "Kicad 5.0.0" installed results in
incompatibilities because KiCad has renamed their footprint libraries.

Also, for some reason it's going to Github to get footprints instead of
using local copies.

Copy every model and footprint we use into a local tomu-fpga.pretty.
This lets us ensure we can work offline, and also allows us to modify
footprints, e.g. by adding a "Pin 1" marker.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 16:01:10 +08:00
820408887a hardware: pcb: add footprint library table
This will be used to tell pcbnew where to find footprint libraries.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 12:58:07 +08:00
061b2c81a7 hardware: sch: map remaining footprints
Add footprints for the remaining schematic components.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 12:57:33 +08:00
60d24d66fd hardware: add footprints for most components
Add footprints for most of the components we'll use.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 12:57:17 +08:00
a715f5c728 hardware: add testpoints for SPI programming
This will become necessary when doing factory burning.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:54:13 +08:00
30b7610996 pcb: hook up more debug wires
We have spare pins, so run more debug wires.

Many of these will probably get cut when doing the PCB layout.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:45:27 +08:00
7bbaa24233 hardware: update name of SPI Flash
Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:36:52 +08:00
4fe5f8f629 hardware: sch: use raspberry pi header, rework signaling
Rework the signaling to send everything to a Raspberry Pi header.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:36:01 +08:00
eb93c70f01 hardware: sch: restructure SPI Flash symbol
It's much cleaner if we put power pins on one side and signal pins on
the other.  This removes the ratsnest that was building up.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:35:19 +08:00
d99d091d95 pcb: schematic-cache: add Raspberry Pi, new SPI Flash
This reworks the SPI Flash layout and adds the Raspberry Pi header.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-31 10:34:33 +08:00
0973972464 hardware: pcb: add SPI debug header
This will be used to program SPI during board bringup.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 22:28:08 +08:00
78bb283bc6 hardware: sch: populate SPI, /RESET pullups
It turns out these resistors are important.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 19:21:01 +08:00
f06ef4a7d5 hardware: sch: add crystal, VCCPLL regulator
Add a crystal, so we can test to make sure it works.

Also add a second regulator dedicated to VCCPLL in an effort to
cost-down the capacitor and large components that shouldn't be
necessary.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 19:14:33 +08:00
76f7bf2548 pcb: sch: make ICE40 VCCPLL a power input
For some reason, this pin was listed as a `power output`, which does not
appear to be the case.  Due to this error, the DRC would fail when using
a regulator directly connected to the pin.

Mark this pin as a `power input` to fix this, since it's really where
power goes into the chip.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 19:13:32 +08:00
ab18c90450 hardware: sch: specify spinor part
SPINOR parts are largely interchangeable.  Pick one.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 17:09:11 +08:00
c7bfc248af pcb: sch: renumber schematic
Renumber the schematic again, as things have shifted around a bit.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 17:06:04 +08:00
ab33b4a0a1 hardware: rename tomu-fpga to pcb
This more closely reflects what it actually is.

Signed-off-by: Sean Cross <sean@xobs.io>
2018-10-30 17:05:02 +08:00