e641702054
schematics: start with tape and reel datasheet information
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(currently done only for RTC)
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
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
cca17d282d
open-close to check that everything loads fine
7 years ago
35b3a8b3dd
changing to 45F which is production device now
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schem symbol 45F fixed typo T8->T7 (GND) and SERDES
7 years ago
154645af07
on schematics write revision 1.7.0 to match similar
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writing on PCB v1.7
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
8e94190676
power up note and small cosmetics
7 years ago
050a70079a
move one audio-v pin from bank0 to bank7 so
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now all audio jack pins are on bank7
7 years ago
6d74bb29fc
PCB v1.7 fix wrong audio jack connection
7 years ago
ba4c8e8d22
PCB v1.6 SDRAM fully reworked
7 years ago
bc41b3052d
move WIFI disable jumper closer to BTN1
7 years ago
220f575442
schematic "power" sheet and footprint cosmetics
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
d57b16519c
update (I hope) all chip units to 85F
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add more GND vias
7 years ago
fffde2cf88
Additional GND for 85F chips
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
35598e53fb
FT231X workaround blues
7 years ago
06a8d751d9
Jumpers (default OFF) for 3 switcher voltages
7 years ago
bc4b88ee58
Micro SD: using SCHD3A0100
7 years ago
f3d84dbfdc
LED D19 was oriented wrong, now correct
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
68a23c127c
set package SOD323 to all small diodes
7 years ago
aef23559d2
3D models for capacitors inductors transistors and some resistors
7 years ago
f32ace3adf
D15 schottky diode BAT54W package SOD323F
7 years ago
bcf94bafab
buttons footprints correct now
7 years ago
2ca8acc32d
ADC chip moved on top layer.
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Connecting 8 analog lines to J2
and remaining VCC/GND
7 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
7 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
238ad770ce
moving USB LEDs on TOP layer
8 years ago
1a122bfc67
fully routed
8 years ago
0f9d00f602
Buffer capacitor for SDRAM
8 years ago
aeaf64f99c
connecting all BTNs except power BTN
8 years ago
dcbfda0556
Run DRC to update cupper fill zones
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
39dce76f0a
use new schem symbol
8 years ago
70fb21781b
reorder GPDI differential pairs for almost straitforward routing
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
1c5b8a64a3
use new footprint for crystal oscillator
8 years ago
0af487f23c
renaming clocks
8 years ago
9570c1137b
small edits
8 years ago
c297a5294f
adding 25 MHz oscillator and moving some parts around
8 years ago
Emard