Bus Pirate extended logic analyzer firmware

flubberlab made an alternate firmware for the Bus Pirate with extended support for the SUMP logic analyzer protocol. This firmware works with the latest Jawi client and has lots of features:

Sample clock source (32 MHz CPU clock):

  • Internal, 5.9 Hz to 108.8 kHz, jitter = -0/+250 ns
  • External (via AUX pin), rising or falling, 0 Hz to 100.6 kHz, jitter = -0/+563 ns (falling), -0/+625ns (rising)

Trigger:

  • Parallel only
  • Conforms to SUMP basic trigger system (4 sum terms, each with mask/value/delay/level/action)
  • Stages are evaluated sequentially, i.e. 1-2-3-4, on each sample

Other

  • Sample buffer is pre-filled with telltale data (0,1,2…255,0,1…) to help indicate when a trigger occurs before the pre-trigger buffer is filled.
  • OLS internal test mode supported (data = 0,1,2…255,0,1…)

Firmware is available in the forum, load it with the normal Bus Pirate upgrade method.

Get your own handy Bus Pirate for $30, including world-wide shipping. Also available from our friendly distributors.

Leave a comment

Your email address will not be published. Required fields are marked *

Notify me of followup comments via e-mail. You can also subscribe without commenting.