42e3255b7a
schematics: US2 diodes pull up/down 1.5k/15k
7 years ago
d95e2eab3d
schematics: 3 decoupling 22nF capacitors for SDRAM
7 years ago
2f3cc59274
schematics: adding mouser P/N
7 years ago
b205d52f4f
schematics: sprinkling 22nF decoupling capacitors under FPGA
7 years ago
a04b74cc61
schematics, footprints: micro usb cleanup
7 years ago
6079a51257
schematics: symbol for SDRAM copied from rescue to proper library
7 years ago
c1053dd7bd
schematics: cleanup of MFG_PN to simplify BOM
7 years ago
e81d05b68d
schematics: renaming pins J..+- to GP,GN..
7 years ago
6228263ac6
schematics: additional diode R23 to make shutdown more reliable
...
reduce hold resistor, use schottky for nSLEEP
7 years ago
4298d197d1
schematics: small cleanup
7 years ago
f4d7692c91
schematics: SD card symbol with 2 CD pins connected to GND
7 years ago
6e63cad6c1
schematics: sdcard correct datasheet url
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
24632c01ac
schematics: SD card slot part name
7 years ago
52814d6ae0
WIFI LED (blue) on schematics
7 years ago
ba4c8e8d22
PCB v1.6 SDRAM fully reworked
7 years ago
1ea88bda53
Adding pins to schematic symbols for all chips in unit "H" (SERDES)
...
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
07de158d38
R56 for FT231X rev A,B,C workaround from TN140_FT231X Errata
7 years ago
bc4b88ee58
Micro SD: using SCHD3A0100
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
aef23559d2
3D models for capacitors inductors transistors and some resistors
7 years ago
f120d212d9
433 MHz onboard antenna (need to uncover copper infill layers)
7 years ago
0229a768ad
FPGA direct-to-pin Hackish USB transciver 27 ohm + 3.6 V zener
7 years ago
6d14ed8ff0
Placing DIP switch, but not yet connecting it to FPGA
8 years ago
37bb008e24
ADC connecting REF+/REF- and SPI
8 years ago
2ca8acc32d
ADC chip moved on top layer.
...
Connecting 8 analog lines to J2
and remaining VCC/GND
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
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
2a60828a99
schem. pullup 1.5k for USB 1.1 full speed mode
8 years ago
23b588ff16
Routing... 4 routes remaining
8 years ago
0f9d00f602
Buffer capacitor for SDRAM
8 years ago
9d6f8bf493
improving SD card power supply and replacing with
...
suitable schematic symbol for micro SD card (was normal SD card)
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
19b884baef
using corrected schem symbol, reordering pins
8 years ago
d6fd30e59c
jumper to disable wifi module
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
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
davor