537e2229b6
schematics: swap U2,U9
7 years ago
3915779e0c
schematics: part numbers and URLs of datasheets and manufacturers
...
of most chips and connectors. Small parts not done yet.
7 years ago
020d7bdfa7
schematics: change core voltage 1.2V->1.1V (RB1 changed 15k->18k)
...
FPGA Chip in ULX3S is LFE5U-45F-6BG381C and it needs 1.1V.
5G chips like LFE5U5G-45F-6BG381C would need 1.2V
7 years ago
3336b63a5b
small schematics notes about WiFi
7 years ago
2b2420fe37
schematics: text labels that enumerate differential pairs on 2.54mm connector
7 years ago
52814d6ae0
WIFI LED (blue) on schematics
7 years ago
4a35c95132
GPDI CEC add protection resistor R61 470 ohm
7 years ago
a5a51a8f28
connected missing SD card pins to esp-32
7 years ago
ba4c8e8d22
PCB v1.6 SDRAM fully reworked
7 years ago
af531b0fd5
LED values renamed to RED and GREEN
7 years ago
1ea88bda53
Adding pins to schematic symbols for all chips in unit "H" (SERDES)
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Non-serdes chips need GND connection on unit "H".
"power" sheet now connects GND's at unit "H".
7 years ago
e4fc99887e
moving GND and VCC on schematics symbols to
...
common locations for planned PCB which
supports upgrade path for example
12F->25F->45F->85F and if possible ECP5U->ECP5UM
7 years ago
1cdad1e4d0
all diodes SOD-323 and SOD-323F packages changed to handsoldering
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(bigger pads, more reworkable)
silkscreen moving references GPDI1 and SW1 for readability
7 years ago
bc4b88ee58
Micro SD: using SCHD3A0100
7 years ago
c42c90ae37
FPGA_DONE connected to ESP32 over a resistors,
...
Other resistors moved away to allow routing thru the mess.
ESP-32 connected missing GND pin
7 years ago
f3d84dbfdc
LED D19 was oriented wrong, now correct
7 years ago
f8b5dc97eb
update SD card power supply and gerbers
7 years ago
bab7ee607e
placeholder for 1.5k pullup for usb 1.0
7 years ago
9cc436ce8c
Additional VCC 2.2uF blocking capacitors near the switching
...
power supply to form PI-filter with another 2.2uF near BGA
7 years ago
f120d212d9
433 MHz onboard antenna (need to uncover copper infill layers)
7 years ago
9f6eae914c
connecting almost all free pins from ESP32 to FPGA
...
(only 4 left unconnected)
7 years ago
d462ffc350
Connecting more ESP32 WIFI pins,
...
sharing them with external 2.54 mm header
to access ADC and HSPI
7 years ago
600c4478fd
esp32: avoid connection to NC pin for JTAG_TDO
7 years ago
0229a768ad
FPGA direct-to-pin Hackish USB transciver 27 ohm + 3.6 V zener
7 years ago
236f63488a
DIP SWITCH routed
8 years ago
32836831ae
i2c of RTC connected to GPDI i2c
8 years ago
2153a220a0
schematic symbol for ADC MAX11123
...
small PCB traces cleanup
ADC chip placed on PCB but connected only to GND
8 years ago
be09416928
Add 27 ohm resistors in series with FTDI USB and readme update
8 years ago
278ac6b341
2.2uF for ESP-32 and gerber update
8 years ago
81b3ea5da0
adding minimal set of 3 2.2uF capacitor for 1.2V, 2.5V and 3.3V
8 years ago
ee7d266543
Resistors for LEDs
8 years ago
18aef04f2c
JTAG header
8 years ago
b7500cc477
increasing thickness of power traces, moving clock
...
to a bank which is always at 3.3V
8 years ago
dbf4b92a22
audio DAC routed
8 years ago
23b588ff16
Routing... 4 routes remaining
8 years ago
1e5e0b01a6
connecting JTAG lines to FTDI serial lines RI DCD CTS DSR
...
as those pins are by default inputs and can be reconfigured as outputs
similar but not identical pinout as the one that works from ujprog
CBUS used to force-wakeup of the board from sleep state
2 LEDs to CBUS pins to display usb enumeration and activity status
8 years ago
5e953da6b9
connecting required pins for WiFi programming
8 years ago
ec42a18d26
reordering RAM connections to use peripheral pins near SDRAM chip
8 years ago
d6fd30e59c
jumper to disable wifi module
8 years ago
9570c1137b
small edits
8 years ago
c297a5294f
adding 25 MHz oscillator and moving some parts around
8 years ago
12e89e677a
connecting wifi, usbserial, oled, sd card
8 years ago
a477fbd050
connecting flash config chip
8 years ago
dc1ae11172
partially routed board using "freeroute" autorouter
8 years ago
85cb0b3f93
Placing 40-pin connectors side-by-side,
...
changing ft2232 to ft231x
8 years ago
a7de1a4e58
power button
8 years ago
4f3fabdb5f
oled updated on the schematic and PCB
8 years ago
6639abded3
add 4 mounting holes
8 years ago
b661cacede
Change to 2x20 pin headers, PCB layout currently sub-optimal
8 years ago
f7185a0ff7
improving wifi SD and JTAG pinouts.
...
Unsure of JTAG (GPIO20 is NC on ESP-32S module?)
8 years ago
Emard