|
|
|
@ -43,7 +43,7 @@ battery backed RTC.
|
|
|
|
|
|
|
|
|
|
ULX3S has rich range of chips and connectivity
|
|
|
|
|
required for many other open source projects:
|
|
|
|
|
SDRAM, USB, PS/2, SDCARD, HDMI, FLASH, RTC, I2C, OLED, AUDIO, ADC,
|
|
|
|
|
SDRAM, USB, PS/2, SDCARD, Digital Video, FLASH, RTC, I2C, OLED, AUDIO, ADC,
|
|
|
|
|
onboard FM/ASK antenna 88-433.92 MHz and 56 GPIO pins which
|
|
|
|
|
are all routed as differential pairs and have pinout that
|
|
|
|
|
is PMOD compatible.
|
|
|
|
@ -204,7 +204,7 @@ Here is checklist what was done or should be done in the next PCB release.
|
|
|
|
|
[x] top layer GND fill
|
|
|
|
|
[x] R25 move away from oled screw hole
|
|
|
|
|
[x] DIP switch to the right near RAM
|
|
|
|
|
[x] Move HDMI a bit closer to OLED
|
|
|
|
|
[x] Move GPDI a bit closer to OLED
|
|
|
|
|
[x] 32768Hz oscillator footprint
|
|
|
|
|
[x] SD card footprint SCHD3A0100
|
|
|
|
|
[x] center the SD footprint for T&R
|
|
|
|
@ -266,7 +266,7 @@ Here is checklist what was done or should be done in the next PCB release.
|
|
|
|
|
[x] Selected 2.5/3.3V to J1 header (instead fixed 3.3V)
|
|
|
|
|
[x] RTC battery capacitor
|
|
|
|
|
[x] battery + pad clearance
|
|
|
|
|
[x] PCB v1.8.1 redesigned to fit HDMI 649-10029449-111RLF (the cheapest)
|
|
|
|
|
[x] PCB v1.8.1 redesigned to fit digital video 649-10029449-111RLF (the cheapest)
|
|
|
|
|
[x] use cheaper diodes 1N914
|
|
|
|
|
[x] fix copper layer after using non-handsoldering resistor footprints
|
|
|
|
|
[x] DIP switch must be pulled up at 2.5/3.3V or 2.5V line, not 3.3V
|
|
|
|
|