PCB for ULX3S FPGA R&D board. Fork Sand fork of https://github.com/emard/ulx3s https://www.forksand.com/
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Davor ec42a18d26
reordering RAM connections to use peripheral pins near SDRAM chip
8 years ago
doc board production rules for oshpart 8 years ago
footprints FPGA schematic symbol add mssing PR41A, PR41B to BANK3 8 years ago
pic using connectors 2x32 for general purpose and 2x15 for 2 PMODs 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 reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
blinkey.sch adding 25 MHz oscillator and moving some parts around 8 years ago
flash.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
flash.sch jumper to disable wifi module 8 years ago
fp-lib-table use new footprint for crystal oscillator 8 years ago
gpdi.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
gpdi.sch use new footprint for crystal oscillator 8 years ago
gpio.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
gpio.sch adding 25 MHz oscillator and moving some parts around 8 years ago
power.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
power.sch renaming clocks 8 years ago
ram.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
ram.sch reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
sdcard.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
sdcard.sch jumper to disable wifi module 8 years ago
ulx3s-cache.lib reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
ulx3s-rescue.lib updating pins for BANK1 (still incomplete) 8 years ago
ulx3s.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
ulx3s.kicad_pcb reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
ulx3s.kicad_pcb-bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
ulx3s.pro Placing 40-pin connectors side-by-side, 8 years ago
ulx3s.sch adding 25 MHz oscillator and moving some parts around 8 years ago
usb.bak reordering RAM connections to use peripheral pins near SDRAM chip 8 years ago
usb.sch adding 25 MHz oscillator and moving some parts around 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