davor
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3996e140ef
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schematics: kicad 5 load and save
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6 years ago |
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davor
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db50639a60
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schematics: 4 22nF capacitors for 2.5/3.3V and 3.3V near J1 and J2 connector
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6 years ago |
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davor
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fe35db8fbb
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schematics: 2V5_3V3 instead fixed 3.3V to J1 connector
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6 years ago |
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davor
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54dcca20fa
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schematics: usb pull pins moved from gpio to gpdi bank
gpio is planned to become be voltage changeable 2.5/3.3V
while pulls should go to 3.3V
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6 years ago |
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davor
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78edad49df
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schematics: US2 lines for pull with 15k
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6 years ago |
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davor
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2f3cc59274
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schematics: adding mouser P/N
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6 years ago |
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davor
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b205d52f4f
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schematics: sprinkling 22nF decoupling capacitors under FPGA
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6 years ago |
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davor
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a04b74cc61
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schematics, footprints: micro usb cleanup
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6 years ago |
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davor
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6079a51257
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schematics: symbol for SDRAM copied from rescue to proper library
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6 years ago |
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davor
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c1053dd7bd
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schematics: cleanup of MFG_PN to simplify BOM
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6 years ago |
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davor
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804ac1c309
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schematics: Add some PN's for the BOM
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6 years ago |
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davor
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6b50f65544
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footprints: FPGA renaming Quad SPI lines D2,D3
schematics: reference FPGA footprint directly (not from rescue file)
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6 years ago |
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davor
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e81d05b68d
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schematics: renaming pins J..+- to GP,GN..
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6 years ago |
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davor
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5b7c755ee1
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schematics: flip audio 0-3
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7 years ago |
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davor
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f4d7692c91
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schematics: SD card symbol with 2 CD pins connected to GND
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7 years ago |
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davor
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c87e9f6c4c
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schematics: renumbering dipswitch pins to match writing on the
part, pins 1-4 from left to right
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7 years ago |
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Emard
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3915779e0c
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schematics: part numbers and URLs of datasheets and manufacturers
of most chips and connectors. Small parts not done yet.
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7 years ago |
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Emard
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2b2420fe37
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schematics: text labels that enumerate differential pairs on 2.54mm connector
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7 years ago |
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Emard
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a5a51a8f28
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connected missing SD card pins to esp-32
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7 years ago |
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Emard
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cca17d282d
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open-close to check that everything loads fine
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7 years ago |
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Emard
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35b3a8b3dd
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changing to 45F which is production device now
schem symbol 45F fixed typo T8->T7 (GND) and SERDES
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7 years ago |
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davor
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050a70079a
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move one audio-v pin from bank0 to bank7 so
now all audio jack pins are on bank7
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7 years ago |
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davor
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0d71e508ae
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analog: audio ring2 resistor DAC network connected to FPGA
copper infill is getting thin, so minimal-thickness traces
are used 0.127 mm
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7 years ago |
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Emard
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ba4c8e8d22
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PCB v1.6 SDRAM fully reworked
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7 years ago |
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davor
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e4fc99887e
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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
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7 years ago |
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Emard
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07de158d38
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R56 for FT231X rev A,B,C workaround from TN140_FT231X Errata
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7 years ago |
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davor
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10df092413
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using modified ECP5 footprint
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7 years ago |
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Emard
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91ac1cc478
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D8,D9,D51,D52: SMA package 2A low drop low profile
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7 years ago |
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davor
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fdf38ad9a1
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DIP switch moved to the right, near RAM.
Maybe should be moved more to the right not to overlap with OLED
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7 years ago |
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davor
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236f63488a
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DIP SWITCH routed
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7 years ago |
|
davor
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32836831ae
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i2c of RTC connected to GPDI i2c
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7 years ago |
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davor
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2153a220a0
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schematic symbol for ADC MAX11123
small PCB traces cleanup
ADC chip placed on PCB but connected only to GND
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7 years ago |
|
Emard
|
be09416928
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Add 27 ohm resistors in series with FTDI USB and readme update
|
7 years ago |
|
Emard
|
ee7d266543
|
Resistors for LEDs
|
7 years ago |
|
davor
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b7500cc477
|
increasing thickness of power traces, moving clock
to a bank which is always at 3.3V
|
7 years ago |
|
davor
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2a60828a99
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schem. pullup 1.5k for USB 1.1 full speed mode
|
7 years ago |
|
davor
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dbf4b92a22
|
audio DAC routed
|
7 years ago |
|
davor
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23b588ff16
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Routing... 4 routes remaining
|
7 years ago |
|
davor
|
0f9d00f602
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Buffer capacitor for SDRAM
|
7 years ago |
|
Emard
|
752eddee0e
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J1 routed using only purple plane, (yellow plane made free)
|
7 years ago |
|
Emard
|
092e601af1
|
connecting LEDs
|
7 years ago |
|
Emard
|
e30bbeea40
|
routing 4 GPIO on J2
|
7 years ago |
|
Emard
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48dc148919
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manually routing J1 differential
|
7 years ago |
|
Davor
|
3446afcc08
|
optimizing PCB component placement
and audio bit ordering
|
7 years ago |
|
Davor
|
19b884baef
|
using corrected schem symbol, reordering pins
|
7 years ago |
|
Davor
|
39dce76f0a
|
use new schem symbol
|
7 years ago |
|
Davor
|
2cda80c3a8
|
manually routed few tracks of GPIO
|
7 years ago |
|
davor
|
70fb21781b
|
reorder GPDI differential pairs for almost straitforward routing
|
7 years ago |
|
Davor
|
aef3945a8e
|
differential pin naming for GPDI, USB, GPIO
|
7 years ago |
|
davor
|
c297a5294f
|
adding 25 MHz oscillator and moving some parts around
|
7 years ago |
