davor
2f3cc59274
schematics: adding mouser P/N
7 years ago
davor
b205d52f4f
schematics: sprinkling 22nF decoupling capacitors under FPGA
7 years ago
davor
a04b74cc61
schematics, footprints: micro usb cleanup
7 years ago
davor
c1053dd7bd
schematics: cleanup of MFG_PN to simplify BOM
7 years ago
davor
6b50f65544
footprints: FPGA renaming Quad SPI lines D2,D3
...
schematics: reference FPGA footprint directly (not from rescue file)
7 years ago
davor
987aefa1fd
schematics: routing FPGA to SPI QUAD.
...
BTN_R,U connected to BANK2,3 on "ram" sheet
7 years ago
davor
e81d05b68d
schematics: renaming pins J..+- to GP,GN..
7 years ago
davor
6228263ac6
schematics: additional diode R23 to make shutdown more reliable
...
reduce hold resistor, use schottky for nSLEEP
7 years ago
davor
f5de9a85ed
schematics: connecting SHUTDOWN to FPGA
7 years ago
davor
b41c200d79
schematics: cosmetics, hidign some button datasheet URL for schematics
7 years ago
Emard
ea88fb4ceb
schematics: changed I2C and SPI FLASH part numbers to provide
...
150-mil SOIC-8 packages to fit one board.
FLASH increased 16->32Mb
7 years ago
Emard
aeb14da29b
schematics: using SOA008 and adding datasheet url to FTDI usbserial
7 years ago
Emard
3915779e0c
schematics: part numbers and URLs of datasheets and manufacturers
...
of most chips and connectors. Small parts not done yet.
7 years ago
Emard
52814d6ae0
WIFI LED (blue) on schematics
7 years ago
Emard
4a35c95132
GPDI CEC add protection resistor R61 470 ohm
7 years ago
Emard
a5a51a8f28
connected missing SD card pins to esp-32
7 years ago
Emard
cca17d282d
open-close to check that everything loads fine
7 years ago
Emard
35b3a8b3dd
changing to 45F which is production device now
...
schem symbol 45F fixed typo T8->T7 (GND) and SERDES
7 years ago
Emard
ba4c8e8d22
PCB v1.6 SDRAM fully reworked
7 years ago
davor
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
davor
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
davor
1cdad1e4d0
all diodes SOD-323 and SOD-323F packages changed to handsoldering
...
(bigger pads, more reworkable)
silkscreen moving references GPDI1 and SW1 for readability
7 years ago
davor
bc4b88ee58
Micro SD: using SCHD3A0100
7 years ago
davor
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
davor
f3d84dbfdc
LED D19 was oriented wrong, now correct
7 years ago
Emard
f8b5dc97eb
update SD card power supply and gerbers
7 years ago
Emard
bab7ee607e
placeholder for 1.5k pullup for usb 1.0
7 years ago
Emard
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
davor
f120d212d9
433 MHz onboard antenna (need to uncover copper infill layers)
7 years ago
davor
0229a768ad
FPGA direct-to-pin Hackish USB transciver 27 ohm + 3.6 V zener
7 years ago
davor
236f63488a
DIP SWITCH routed
8 years ago
davor
37bb008e24
ADC connecting REF+/REF- and SPI
8 years ago
davor
2ca8acc32d
ADC chip moved on top layer.
...
Connecting 8 analog lines to J2
and remaining VCC/GND
8 years ago
davor
2153a220a0
schematic symbol for ADC MAX11123
...
small PCB traces cleanup
ADC chip placed on PCB but connected only to GND
8 years ago
Emard
be09416928
Add 27 ohm resistors in series with FTDI USB and readme update
8 years ago
davor
81b3ea5da0
adding minimal set of 3 2.2uF capacitor for 1.2V, 2.5V and 3.3V
8 years ago
Emard
ee7d266543
Resistors for LEDs
8 years ago
Emard
18aef04f2c
JTAG header
8 years ago
davor
b7500cc477
increasing thickness of power traces, moving clock
...
to a bank which is always at 3.3V
8 years ago
davor
dbf4b92a22
audio DAC routed
8 years ago
davor
23b588ff16
Routing... 4 routes remaining
8 years ago
Emard
108abc3158
connecting 3.3V and 1.2V
8 years ago
davor
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
Davor
3446afcc08
optimizing PCB component placement
...
and audio bit ordering
8 years ago
Davor
39dce76f0a
use new schem symbol
8 years ago
Davor
ec42a18d26
reordering RAM connections to use peripheral pins near SDRAM chip
8 years ago
davor
d6fd30e59c
jumper to disable wifi module
8 years ago
davor
9570c1137b
small edits
8 years ago
davor
c297a5294f
adding 25 MHz oscillator and moving some parts around
8 years ago
Davor
12e89e677a
connecting wifi, usbserial, oled, sd card
8 years ago
Davor
a477fbd050
connecting flash config chip
8 years ago
davor
dc1ae11172
partially routed board using "freeroute" autorouter
8 years ago
davor
85cb0b3f93
Placing 40-pin connectors side-by-side,
...
changing ft2232 to ft231x
8 years ago
davor
a7de1a4e58
power button
8 years ago
davor
4f3fabdb5f
oled updated on the schematic and PCB
8 years ago
davor
6639abded3
add 4 mounting holes
8 years ago
davor
b661cacede
Change to 2x20 pin headers, PCB layout currently sub-optimal
8 years ago
davor
f7185a0ff7
improving wifi SD and JTAG pinouts.
...
Unsure of JTAG (GPIO20 is NC on ESP-32S module?)
8 years ago
davor
f9ba6fa20b
chage ESP8266-12E to ESP32S
...
approximate (maybe incorrect) connections - need review
(programming esp from fpga, jtag, sd, chip enable)
8 years ago
davor
a0dae5bb6a
another diode to duscharge C14 at shutdown
8 years ago
Davor
cf01d5cc8d
Power: Replace discharge resistor which leaks with
...
a diode for discharge C at shutdown
HDMI pin 0 is now the shield and connected to GND
8 years ago
davor
5d4ce79295
connecting BANK2 to PMOD connectors
8 years ago
davor
222f4805b3
SDRAM add global labels for signals
8 years ago
davor
23c4cde741
GPDI I2C 5V level shifter
8 years ago
davor
7fd0f561fc
Add SPI flash chip
8 years ago