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
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
222f4805b3
SDRAM add global labels for signals
8 years ago
23c4cde741
GPDI I2C 5V level shifter
8 years ago
7fd0f561fc
Add SPI flash chip
8 years ago
b6697c4012
Audio 3.5mm jack resistor network
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
8ed3d57c66
Add wake on RTC and shutdown network
8 years ago
133417070a
add RTC to power sheet
...
Moving wifi to separate sheet
8 years ago
24e8015ff0
move usb to "usbserial" sheet and add ft2232 footprint
...
move sdram to "ram" sheet
create "wifi" sheet
8 years ago
Emard