Dangerous Prototypes Open Source Hardware

Bus Pirate with Logic Sniffer

November 04, 2010, 09:16:29 am

hi ...
i got both my bus pirate and openbench fews day ago...
so i explore my BP first with  I2C UART  Oscilloscope ...
after that i start playing with my OB, it runs really great with the last firmware and the logic sniffer 0.9.0 
(  i installed the OpenBenchLogicSniffer-2.12-Setup )

coming back to my BP i try to use with the logic sniffer and i found few problems...

using automatic memory doesn't works, (i guess it thinks im still using the openbench)  so the capture stop a some moment,
and i got interrupt error.
if i used 3k or less it works ... ( i read there's 4k with the BP )

the  before/after ratio doesn't work, samples always start at the beginning but the time scale changed place.

i didn't play alot around, maybe sometime this week...

Re: Bus Pirate with Logic Sniffer

Reply #1 – November 04, 2010, 09:24:20 am

Hi voidptr,

The Bus Pirate logic analyzer mode doesn't support before/after ratio. It supports 4K samples.

Here's the documentation for the Logic Analyzer mode:
http://dangerousprototypes.com/docs/Bus ... _with_SUMP

Re: Bus Pirate with Logic Sniffer

Reply #2 – November 04, 2010, 10:06:24 am

[quote author="ian"]
Hi voidptr,

The Bus Pirate logic analyzer mode doesn't support before/after ratio. It supports 4K samples.

Here's the documentation for the Logic Analyzer mode:
http://dangerousprototypes.com/docs/Bus ... _with_SUMP
[/quote]


I was just saying only suggestions :-)

what i found the help isn't really precise to what will not work.
and there is not 4k available in the memory dropdown P 
(i have not idea how hard but it might  make sense to add it for all devices )

Thanks
:-)