mntmn
a8c89d0f35
reform2-motherboard: version D-4 finished; fixes critical D-3 bugs; adds PCIe refclk termination, speaker output filter stage, pcie0 3v3 load switch, imx reset line to lpc, charge current control line to lpc
8 months ago
mntmn
2f83c57274
reform2-motherboards: cleanup and rename
9 months ago
mntmn
b225b54c71
Rev 2.0D-3 snapshot.
Main changes:
- Charger swapped to LTC4020 (incl. boost converter)
- 1.2V, 1.5V LDOs swapped to switchers (TLV62568), 1.1V+1.2V unified
- Audio chip and amp swapped to WM8960 which includes 2 amps and 2
volumes for speakers/headphones
- Headphone jack detection
- Optional routes for Boundary's PCIe 1 Refclk bodge wires
- Introduces extra LM2841X for standby power 3.3v with analog UVLO
- Introduces realtime clock PCF8523T
- Introduces cleaned up "keyboard system control port"
- Changes generic 2mm headers for USB and speakers to JST PH
- Power rail rework for more current
11 months ago
mntmn
e136d7fe63
Reform 2 motherboard Rev 2 final tweaks before order; added footprints
for Molex battery connector and WA SMSI M2 smd screw mounts
1 year ago
mntmn
b3a592dc7a
Reform 2 Rev 2 WIP: fixed various Rev 1 bugs; consolidate battery connector; consolidate 5v powers; make power rails switchable by LPC; exchange TUSB QFN for TQFP; remove eDP FPC; fixes holes; add SD level shifter; add PCIe clock generator; reduce JTAG footprint
1 year ago
mntmn
465f19983a
reform2 motherboard: pinout and footprint checks completed; ERC checks fixed 100%
1 year ago
mntmn
91ba40ff0e
WIP: reform2: more routing, 73 pads left
1 year ago
mntmn
a9b4e96ab2
WIP: reform2: migrate to Boundary Devices i.MX8M SOM
1 year ago
mntmn
083f0de347
WIP: reform 2 motherboard: tweaks for CL-SOM
1 year ago
mntmn
7412294a1a
WIP: reform2 motherboard: rough placement
1 year ago
mntmn
5e13ed56b3
WIP: reform2 motherboard: more schematics tuning, preliminary selection of most components
1 year ago
mntmn
3c689cd509
WIP: reform2 motherboard: more sanity and footprint checks, passives
1 year ago
mntmn
583a4c7bce
WIP reform2: motherboard: many components sanity checked, passives footprints, fixed wrong NVMe/M.2 connector symbol and pins
1 year ago
mntmn
ec1aa66f73
WIP: reform2 schematic detail work all over the board and more footprints and 3d models added; changed one mpcie to M.2/NGFF/NVMe
1 year ago
mntmn
f8677f3039
WIP reform2: more schematics ground work on USB, PCIe, Display, Audio, Power
1 year ago
mntmn
9a538862c3
reform2: schematic work, mainly power, display, first footprint tests
1 year ago
mntmn
b13f9e1e3d
reform2: add schematic pages for display, eth, usb, sd, pcie, hdmi, audio and some chip work
1 year ago
mntmn
a62871719f
WIP reform v2 power
1 year ago
mntmn
20ad9f854d
WIP reform2 motherboard sketch with imx8m
1 year ago