FPGABee is a hardware emulation of a Microbee - the classic Aussie home computer of the 80's!

Building XulaBee - Revised PCB

Wednesday, August 7th, 2013     #xula #everything

Last night I made some improvements to the PCB design for XulaBee, including:

  • Increased most of the signal tracks to 0.5mm
  • Increased the 5V supply and ground tracks to 1mm
  • Fixed most angled tracks to be 45 degrees.
  • Checked the circuitry to the pmod connector for the SD card
  • Added circuitry for 2x sigma-delta DAC signals, including a dual op-amp to amplify the signals to line-level
  • Miscellaneous other changes

Here's how it now looks:

PCB

Bottom layer copper

PCB Bottom Copper

Top layer copper

PCB Bottom Copper

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