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 |
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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 |
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Emard
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be09416928
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Add 27 ohm resistors in series with FTDI USB and readme update
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8 years ago |
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Emard
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ee7d266543
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Resistors for LEDs
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8 years ago |
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davor
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b7500cc477
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increasing thickness of power traces, moving clock
to a bank which is always at 3.3V
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8 years ago |
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davor
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2a60828a99
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schem. pullup 1.5k for USB 1.1 full speed mode
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8 years ago |
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davor
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dbf4b92a22
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audio DAC routed
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8 years ago |
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davor
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23b588ff16
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Routing... 4 routes remaining
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8 years ago |
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davor
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0f9d00f602
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Buffer capacitor for SDRAM
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8 years ago |
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Emard
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752eddee0e
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J1 routed using only purple plane, (yellow plane made free)
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8 years ago |
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Emard
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092e601af1
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connecting LEDs
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8 years ago |
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Emard
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e30bbeea40
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routing 4 GPIO on J2
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8 years ago |
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Emard
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48dc148919
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manually routing J1 differential
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8 years ago |
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Davor
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3446afcc08
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optimizing PCB component placement
and audio bit ordering
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8 years ago |
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Davor
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19b884baef
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using corrected schem symbol, reordering pins
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8 years ago |
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Davor
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39dce76f0a
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use new schem symbol
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8 years ago |
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Davor
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2cda80c3a8
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manually routed few tracks of GPIO
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8 years ago |
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davor
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70fb21781b
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reorder GPDI differential pairs for almost straitforward routing
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8 years ago |
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Davor
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aef3945a8e
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differential pin naming for GPDI, USB, GPIO
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8 years ago |
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davor
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c297a5294f
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adding 25 MHz oscillator and moving some parts around
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8 years ago |
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Davor
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12e89e677a
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connecting wifi, usbserial, oled, sd card
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8 years ago |
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Davor
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a477fbd050
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connecting flash config chip
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8 years ago |
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davor
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dc1ae11172
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partially routed board using "freeroute" autorouter
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8 years ago |
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davor
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85cb0b3f93
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Placing 40-pin connectors side-by-side,
changing ft2232 to ft231x
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8 years ago |
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davor
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a7de1a4e58
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power button
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8 years ago |
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davor
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a60712b2f6
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place renumbered schematic units of the fpga chip
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8 years ago |
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davor
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e2899667ef
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place all available banks to gpio page
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8 years ago |
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davor
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c3889467a0
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rename gpio pins same as BGA pin e.g. A9, C11, ...
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8 years ago |
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davor
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4f3fabdb5f
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oled updated on the schematic and PCB
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8 years ago |
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davor
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6639abded3
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add 4 mounting holes
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8 years ago |
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davor
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b661cacede
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Change to 2x20 pin headers, PCB layout currently sub-optimal
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8 years ago |
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davor
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f9ba6fa20b
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chage ESP8266-12E to ESP32S
approximate (maybe incorrect) connections - need review
(programming esp from fpga, jtag, sd, chip enable)
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8 years ago |
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davor
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a0dae5bb6a
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another diode to duscharge C14 at shutdown
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8 years ago |
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davor
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5d4ce79295
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connecting BANK2 to PMOD connectors
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8 years ago |
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davor
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23c4cde741
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GPDI I2C 5V level shifter
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8 years ago |
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davor
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7fd0f561fc
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Add SPI flash chip
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8 years ago |
