3915779e0c
schematics: part numbers and URLs of datasheets and manufacturers
...
of most chips and connectors. Small parts not done yet.
7 years ago
52814d6ae0
WIFI LED (blue) on schematics
7 years ago
7cebd0afa5
changing DAC resistors 100-820 ohm -> 150-1200 ohm
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few 220 ohm resistors changed to 150 ohm to simplify BOM
7 years ago
ba4c8e8d22
PCB v1.6 SDRAM fully reworked
7 years ago
af531b0fd5
LED values renamed to RED and GREEN
7 years ago
220f575442
schematic "power" sheet and footprint cosmetics
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
35598e53fb
FT231X workaround blues
7 years ago
f3d84dbfdc
LED D19 was oriented wrong, now correct
7 years ago
d0cf4eaeaf
DIP switch correct footprint
7 years ago
bcf94bafab
buttons footprints correct now
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
236f63488a
DIP SWITCH routed
8 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
ee7d266543
Resistors for LEDs
8 years ago
238ad770ce
moving USB LEDs on TOP layer
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
23b588ff16
Routing... 4 routes remaining
8 years ago
0f9d00f602
Buffer capacitor for SDRAM
8 years ago
1f60f95a71
compatible OLED models: SSD1306 or SSD1331
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
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
b1062e5795
place oled symbol on 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
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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
dc6ea57d67
Label button pullup net "BTNPU"
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
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small rearranging and comments
8 years ago
4b5faa4f58
eeprom for FT2232
8 years ago
ddd08e597e
JTAG port to USB sheet
8 years ago
17ba085b6f
audio jack to "analog" sheet
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
8ed3d57c66
Add wake on RTC and shutdown network
8 years ago
133417070a
add RTC to power sheet
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Moving wifi to separate sheet
8 years ago
24e8015ff0
move usb to "usbserial" sheet and add ft2232 footprint
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move sdram to "ram" sheet
create "wifi" sheet
8 years ago
Emard