08e107ae65
schematics: detach SD card connection from ESP32, it won't
...
boot when this is connected.
7 years ago
006cac18f6
schematics: comment TXLED blinks when ftdi_rx receives data
7 years ago
3a87d41201
schematics: additional comments for wifi bootstrapping and readme update
7 years ago
4298d197d1
schematics: small cleanup
7 years ago
b41c200d79
schematics: cosmetics, hidign some button datasheet URL for schematics
7 years ago
c87e9f6c4c
schematics: renumbering dipswitch pins to match writing on the
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part, pins 1-4 from left to right
7 years ago
ea88fb4ceb
schematics: changed I2C and SPI FLASH part numbers to provide
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150-mil SOIC-8 packages to fit one board.
FLASH increased 16->32Mb
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
020d7bdfa7
schematics: change core voltage 1.2V->1.1V (RB1 changed 15k->18k)
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FPGA Chip in ULX3S is LFE5U-45F-6BG381C and it needs 1.1V.
5G chips like LFE5U5G-45F-6BG381C would need 1.2V
7 years ago
3336b63a5b
small schematics notes about WiFi
7 years ago
2b2420fe37
schematics: text labels that enumerate differential pairs on 2.54mm connector
7 years ago
52814d6ae0
WIFI LED (blue) on schematics
7 years ago
4a35c95132
GPDI CEC add protection resistor R61 470 ohm
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
af531b0fd5
LED values renamed to RED and GREEN
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
1cdad1e4d0
all diodes SOD-323 and SOD-323F packages changed to handsoldering
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(bigger pads, more reworkable)
silkscreen moving references GPDI1 and SW1 for readability
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
f3d84dbfdc
LED D19 was oriented wrong, now correct
7 years ago
f8b5dc97eb
update SD card power supply and gerbers
7 years ago
bab7ee607e
placeholder for 1.5k pullup for usb 1.0
7 years ago
9cc436ce8c
Additional VCC 2.2uF blocking capacitors near the switching
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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
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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
236f63488a
DIP SWITCH routed
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
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
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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
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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
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
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