FTDI Serial Latency, and Threaded EEHack

I’ve found that lowering the latency on an FTDI serial device to 1 or 2 milliseconds gives improved performance for datalogging and other communications, at least at the 8192 baud rates we work with.

ftdi_latency

Give it a shot!

The next version of EEHack, which uses a threads, message queues, and switchboards instead of simple order-of-operations and timers,¬†approaches 17 samples per second in ‘patched’ mode on several test systems with the reduced latency.. which is probably about the maximum you’ll ever see on this old ECM.

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