PCB for ULX3S FPGA R&D board. Fork Sand fork of https://github.com/emard/ulx3s https://www.forksand.com/
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Emard 24c52062fa
moving routes under BGA out of inner layers
8 years ago
doc reducing minimal drill size to 0.2 mm as 8 years ago
footprints fixing errors in schem symbol BANK6 8 years ago
pic update 3D view top 8 years ago
plot gerber update 8 years ago
.gitignore use new footprint for crystal oscillator 8 years ago
README.md readme update 8 years ago
analog.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
analog.sch jumper to disable wifi module 8 years ago
blinkey.bak optimizing PCB component placement 8 years ago
blinkey.sch adding 25 MHz oscillator and moving some parts around 8 years ago
flash.bak optimizing PCB component placement 8 years ago
flash.sch optimizing PCB component placement 8 years ago
fp-lib-table use new footprint for crystal oscillator 8 years ago
gpdi.bak routing additional pins to J2 GPIO. 2 differential pairs left to route 8 years ago
gpdi.sch routing additional pins to J2 GPIO. 2 differential pairs left to route 8 years ago
gpio.bak routing 4 GPIO on J2 8 years ago
gpio.sch routing 4 GPIO on J2 8 years ago
power.bak use new schem symbol 8 years ago
power.sch use new schem symbol 8 years ago
ram.bak routing additional pins to J2 GPIO. 2 differential pairs left to route 8 years ago
ram.sch routing additional pins to J2 GPIO. 2 differential pairs left to route 8 years ago
sdcard.bak using corrected schem symbol, reordering pins 8 years ago
sdcard.sch using corrected schem symbol, reordering pins 8 years ago
ulx3s-cache.lib using corrected schem symbol, reordering pins 8 years ago
ulx3s-rescue.lib updating pins for BANK1 (still incomplete) 8 years ago
ulx3s.bak using corrected schem symbol, reordering pins 8 years ago
ulx3s.kicad_pcb moving routes under BGA out of inner layers 8 years ago
ulx3s.kicad_pcb-bak moving routes under BGA out of inner layers 8 years ago
ulx3s.pro Placing 40-pin connectors side-by-side, 8 years ago
ulx3s.sch use new schem symbol 8 years ago
usb.bak using corrected schem symbol, reordering pins 8 years ago
usb.sch using corrected schem symbol, reordering pins 8 years ago
wifi.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
wifi.sch jumper to disable wifi module 8 years ago

README.md

ULX3S PCB

This is work-in-progress place for putting some wishes of a small FPGA board.

Instead of describing in written, it is better explained when drawn in kicad:

kicad ulx3s.pro

Currently this is only partial schematics and partial floorplanning. PCB is not routed. Some footprintes are collected and some are incomplete.

An overview if the parts will fit in the space how it will look.

From production of this, we are far, far away :)

Features

3.5 mm jack footprint

Switching voltage regulators

USB footprints without thru-holes

SPI OLED placeholder (thru hole probably)

FTDI 2232 usb-jtag chip

SPI flash chip

SDRAM chip

LEDs: 8 blinkleds, 1 usb led

RTC clock, quartz and battery

3.3V-5V I2C bidirectional level shifter for GPDI

GPDI is General Purpose Differential Interface, Electrically LVDS, mostly TMDS tolerant female receptacle more-or-less compatible with digital monitors/TVs

Todo

Completing FPGA IO bank shcematics blocks

Check SD card slot footprint

Oscillators (25/50/100 MHz)

rearrange PushButtons: 6 (2+4)

         U
A B    L D R

IR camera placeholder

OV767 color camera placeholder

2.54 mm external JTAG header