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
0229a768ad
FPGA direct-to-pin Hackish USB transciver 27 ohm + 3.6 V zener
7 years ago
fdf38ad9a1
DIP switch moved to the right, near RAM.
...
Maybe should be moved more to the right not to overlap with OLED
7 years ago
5f589c33f4
USB directly to FPGA for possible USB1.1 core
7 years ago
6d14ed8ff0
Placing DIP switch, but not yet connecting it to FPGA
7 years ago
2153a220a0
schematic symbol for ADC MAX11123
...
small PCB traces cleanup
ADC chip placed on PCB but connected only to GND
7 years ago
be09416928
Add 27 ohm resistors in series with FTDI USB and readme update
8 years ago
ee7d266543
Resistors for LEDs
8 years ago
18aef04f2c
JTAG header
8 years ago
238ad770ce
moving USB LEDs on TOP layer
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
1a122bfc67
fully routed
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
108abc3158
connecting 3.3V and 1.2V
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
5590ba802d
optimizing routing for SD and FTDI
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
4c13f262e8
connecting FTDI TXD/RXD
8 years ago
364957f9e0
connecting OLED
8 years ago
19b884baef
using corrected schem symbol, reordering pins
8 years ago
39dce76f0a
use new schem symbol
8 years ago
70fb21781b
reorder GPDI differential pairs for almost straitforward routing
8 years ago
aef3945a8e
differential pin naming for GPDI, USB, GPIO
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
f9ba6fa20b
chage ESP8266-12E to ESP32S
...
approximate (maybe incorrect) connections - need review
(programming esp from fpga, jtag, sd, chip enable)
8 years ago
a0dae5bb6a
another diode to duscharge C14 at shutdown
8 years ago
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
23c4cde741
GPDI I2C 5V level shifter
8 years ago
7fd0f561fc
Add SPI flash chip
8 years ago
aa8fac622b
SD card to sperate "sdcard" sheet
...
small rearranging and comments
8 years ago
4b5faa4f58
eeprom for FT2232
8 years ago
ddd08e597e
JTAG port to USB sheet
8 years ago
c17b4cfa73
connecting FT2232 with JTAG
8 years ago
17ba085b6f
audio jack to "analog" sheet
8 years ago
3068b9a777
update correct USB footprint as the part ordered
8 years ago
c1205abfb4
Add 3V battery CR1225 holder footprint
8 years ago
4a87d52a9d
allow FTDI to force power up of the board
8 years ago
davor