1. 13 Jun, 2018 1 commit
  2. 12 Jun, 2018 1 commit
    • Eric Kuzmenko's avatar
      Add GNSS antenna footprint including correct 50Ohm feed line dimensions and... · 05b25768
      Eric Kuzmenko authored
      Add GNSS antenna footprint including correct 50Ohm feed line dimensions and keepout area, add u-blox MAX-8 3D model, rename all instances of MAX-M8* to MAX-8* due to part selection, antenna feed line calculatos included (coplanar waveguide)
      
      Need to add placeholder footprints for the other four antennae which will be represented as simple rectangular areas where the antennae will occupy. After that, all that is left is to assign the various remaining IC footprints and finally import all footprints into PCBNew & begin layout!
      05b25768
  3. 11 Jun, 2018 4 commits
  4. 09 Jun, 2018 2 commits
  5. 08 Jun, 2018 1 commit
  6. 07 Jun, 2018 3 commits
  7. 06 Jun, 2018 2 commits
  8. 05 Jun, 2018 1 commit
  9. 04 Jun, 2018 1 commit
    • Eric Kuzmenko's avatar
      Replace the AP22800 load switch with the P-channel AP22814 load switch IC due... · e1a47582
      Eric Kuzmenko authored
      Replace the AP22800 load switch with the P-channel AP22814 load switch IC due to its reverse current & over current protection capability, add level shifter circuit to the WWAN's DPR signal
      
      Reverse current is no longer an issue with the load switches. One more obvious "TODO" for the schematic left which is to simply place several 100nF bypass caps on the 5V_P, 3V3_P, and 1V8_P rails (investigate how EmCraft is placing these in their layout).
      e1a47582
  10. 02 Jun, 2018 2 commits
  11. 01 Jun, 2018 3 commits
  12. 31 May, 2018 3 commits
  13. 30 May, 2018 1 commit
  14. 29 May, 2018 2 commits
  15. 28 May, 2018 1 commit
    • Eric Kuzmenko's avatar
      Add camera/CSI circuit, include second switch that is part of the audio+camera... · 35715ac1
      Eric Kuzmenko authored
      Add camera/CSI circuit, include second switch that is part of the audio+camera DPDT for killing both simultaneously, level shifters used for camera's I/O that requires it, footprints for a 1.8V LDO which may be used by DVDD will be included
      
      External DVDD (1.8V LDO) needs to be tested if it's needed (datasheet says an internal DVDD can be used, as is the case with Boundary Devices' OV5640 camera).
      35715ac1
  16. 26 May, 2018 2 commits
  17. 25 May, 2018 2 commits
  18. 24 May, 2018 4 commits
  19. 23 May, 2018 1 commit
  20. 22 May, 2018 2 commits
    • Eric Kuzmenko's avatar
      Move MIPI DSI & CSI sheets into a "MIPI" sheet, both DSI and CSI will likely... · 01de221d
      Eric Kuzmenko authored
      Move MIPI DSI & CSI sheets into a "MIPI" sheet, both DSI and CSI will likely use the I2C level shifter
      01de221d
    • Eric Kuzmenko's avatar
      Begin assigning footprints to passive components, add component information to... · 37913757
      Eric Kuzmenko authored
      Begin assigning footprints to passive components, add component information to the common 10k resistors throughout the schematic, include TVS diodes on the switch/button I/O pins, use the DB2J20900L schottky diode throughout the design (in place of the ZLLS400)
      
      Added notes about the battery holder, battery size, and the fact that the 103HT thermistor can fit underneath the 18650 battery when the battery is insterted into the holder.
      
      Included frequency response curve for the new/cheaper SMD speaker (slightly thicker mechanical dimension).
      
      Included note about the RedPine RS9116's SDIO_RESET# line expecting a 2.31V VIH logic level, increased the pull-up to 100k (M.2 standard states that this is should be 1.8V level).
      
      Added a TODO note stating the 1.8V logic-level I2C devices should share the same level-shifter that will be on the top-level circuit (in next commit).
      37913757
  21. 18 May, 2018 1 commit