08e107ae65
schematics: detach SD card connection from ESP32, it won't
...
boot when this is connected.
7 years ago
3a87d41201
schematics: additional comments for wifi bootstrapping and readme update
7 years ago
4298d197d1
schematics: small cleanup
7 years ago
120db49185
schematics: reconnect WIFI_OFF so that jumper has priority
7 years ago
f4d7692c91
schematics: SD card symbol with 2 CD pins connected to GND
7 years ago
87376486f3
schematics: rename ESP-32S -> ESP-WROOM-32
7 years ago
537e2229b6
schematics: swap U2,U9
7 years ago
3915779e0c
schematics: part numbers and URLs of datasheets and manufacturers
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of most chips and connectors. Small parts not done yet.
7 years ago
3336b63a5b
small schematics notes about WiFi
7 years ago
186eabc54c
WIFI VSPI schematic connected to JTAG for possible acceleration
7 years ago
52814d6ae0
WIFI LED (blue) on schematics
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
bc41b3052d
move WIFI disable jumper closer to BTN1
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
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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
c42c90ae37
FPGA_DONE connected to ESP32 over a resistors,
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Other resistors moved away to allow routing thru the mess.
ESP-32 connected missing GND pin
7 years ago
bab7ee607e
placeholder for 1.5k pullup for usb 1.0
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
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(only 4 left unconnected)
7 years ago
d462ffc350
Connecting more ESP32 WIFI pins,
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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
6d14ed8ff0
Placing DIP switch, but not yet connecting it to FPGA
8 years ago
32836831ae
i2c of RTC connected to GPDI i2c
8 years ago
2153a220a0
schematic symbol for ADC MAX11123
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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
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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
dbf4b92a22
audio DAC routed
8 years ago
23b588ff16
Routing... 4 routes remaining
8 years ago
0f9d00f602
Buffer capacitor for SDRAM
8 years ago
1e5e0b01a6
connecting JTAG lines to FTDI serial lines RI DCD CTS DSR
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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
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,
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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.
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Unsure of JTAG (GPIO20 is NC on ESP-32S module?)
8 years ago
f9ba6fa20b
chage ESP8266-12E to ESP32S
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approximate (maybe incorrect) connections - need review
(programming esp from fpga, jtag, sd, chip enable)
8 years ago
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