[TriEmbed] Logic Analyzer Recommendatio

[Pete Soper]

Sorry to be late to the party.

Two things with the bus pirate:
     1) Be super-careful to avoid the "latest" hardware version if the 
software for that never got completed. I don't know if this situation 
was ever corrected, but the last time I checked after (the worthless) 
Bus Pirate for Splatspace wasn't cooperating the firmware author 
appeared to have publicly backed away from completing the work (but that 
was at least 18 months ago).
    2) The Bus Pirate is so slow and that even it's maker warns against 
considering it equivalent to a logic analyzer for high speed data.

I've been using the Dangerous Prototypes "Open Bench Logic Sniffer" for 
a long time and it's gotten the job done. It isn't particularly fast 
(200msps as I recall) but that's been fast enough for every situation 
I've been in, and should certainly be adequate for SPI.
The problematic aspect with this hardware is that even the best client 
software (OLS <http://www.lxtreme.nl/ols/>) is a bit brittle with 
respect to the USB interface, occasionally requiring a restart.

-Pete

On 01/18/2015 11:54 AM, Chip McClelland wrote:
> To all,  thanks for the responses thus far. I have one other question 
> before I pull the trigger on this.  Does the Saleae doe enough extra 
> to justify the extra price over the Bus Pirate? My main focus today is 
> listening to the I2C bus but am open to getting a more capable tool if 
> it may be helpful in the future.
>
> Thanks,
> Chip
>
> O

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