Emard
be09416928
Add 27 ohm resistors in series with FTDI USB and readme update
8 years ago
davor
278ac6b341
2.2uF for ESP-32 and gerber update
8 years ago
davor
81b3ea5da0
adding minimal set of 3 2.2uF capacitor for 1.2V, 2.5V and 3.3V
8 years ago
davor
96fabee1bc
Moving C18 away from battery
8 years ago
Emard
a11072b4e4
beautifying routes of LEDs and moving oscillator under the LEDs
8 years ago
Emard
ee7d266543
Resistors for LEDs
8 years ago
Emard
18aef04f2c
JTAG header
8 years ago
Emard
238ad770ce
moving USB LEDs on TOP layer
8 years ago
davor
dcbf46dff2
optimizing PCB
8 years ago
davor
34c4e9d7f3
increasing power via diameter
8 years ago
davor
b7500cc477
increasing thickness of power traces, moving clock
...
to a bank which is always at 3.3V
8 years ago
Emard
57fdb7743e
1mm thick 5V line
8 years ago
davor
76542e7630
moving FTDI USB on top
8 years ago
davor
1a122bfc67
fully routed
8 years ago
davor
dbf4b92a22
audio DAC routed
8 years ago
davor
23b588ff16
Routing... 4 routes remaining
8 years ago
davor
f036dae0fd
tidying up some traces, nothing important
8 years ago
Emard
f7f305ad0d
tidying up SDRAM connections. Trace lengths unequal,
...
expected about 0.1 ns time difference
8 years ago
davor
20cbbc4ef9
continue routing PCB
8 years ago
davor
eb3fc2ec70
connecting some GNDs and GNDing unnamed shield pads on USB connectors
8 years ago
davor
b1718ae700
thick power lines
8 years ago
Emard
7d0fc68da0
connecting 2.5V
8 years ago
Emard
108abc3158
connecting 3.3V and 1.2V
8 years ago
Emard
ecc772b518
optimizing wakeup network
...
moving SMPS power supply networks
1.2V supply moved to the right
8 years ago
davor
aeaf64f99c
connecting all BTNs except power BTN
8 years ago
davor
dcbfda0556
Run DRC to update cupper fill zones
8 years ago
davor
9d6f8bf493
improving SD card power supply and replacing with
...
suitable schematic symbol for micro SD card (was normal SD card)
8 years ago
Emard
2426a9f7e7
DRC rerun
8 years ago
Emard
5590ba802d
optimizing routing for SD and FTDI
8 years ago
davor
c381c4c5c4
small PCB optimizations
8 years ago
davor
1f60f95a71
compatible OLED models: SSD1306 or SSD1331
8 years ago
Emard
28c4106026
J2 GPIO: routed in the purple plane only
8 years ago
Emard
aabd353e71
J1 GPIO: grouping lines on purple plane
8 years ago
Emard
752eddee0e
J1 routed using only purple plane, (yellow plane made free)
8 years ago
davor
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
davor
57fa143c11
connecting 2.5V and 3.3V sources to BGA planes
8 years ago
davor
4a0cc08307
connecting 1.2V core voltage, solving FPGA voltage plane,
...
still too thin wire leading to SMPS supply
8 years ago
Emard
5e953da6b9
connecting required pins for WiFi programming
8 years ago
Emard
4c13f262e8
connecting FTDI TXD/RXD
8 years ago
Emard
092e601af1
connecting LEDs
8 years ago
Emard
364957f9e0
connecting OLED
8 years ago
Emard
feb31c8f87
moving inner layer routes away from BGA
8 years ago
Emard
24c52062fa
moving routes under BGA out of inner layers
8 years ago
Emard
6e2e5f8c39
moving routing out of inner layers under BGA to allow
...
larger copper fill zone for power supply
8 years ago
davor
3a9160cb16
scrapping current routing, placing power supply on copper zones under the BGA
8 years ago
davor
21aa552e1a
placing copper fill zones for power supply by the book
...
similar to TN1074
8 years ago
Emard
37f7a62a25
reducing minimal drill size to 0.2 mm as
...
recommended in lattice BGA guide.
Seeedstudio meets this capabilities
OSHpark doesn't
8 years ago
Emard
8061b47da8
moving some resistor near flash chip
8 years ago
Emard
b12f1b64a6
routing spi flash lines
8 years ago
Emard
820f30f598
routing JTAG
8 years ago