Author Topic: Stellaris Launchpad Logic Analyser  (Read 4571 times)

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Offline HackedFridgeMagnetTopic starter

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Stellaris Launchpad Logic Analyser
« on: March 13, 2013, 05:46:54 am »
As somebody pointed out, a logic analyser might be a good use for your Stellaris Launchpad.
So I gave it a go.

Quote
http://www.fischl.de/arm/sllogiclogger_logic_analyser_for_stellaris_launchpad/

the protocol is I2C talking to a ds1307
So the analysis doesn't quite work yet, but my data seems to be coming in albeit with some ugly spikes.
And I have remote debugging on the launch pad if I needed it.
My bus pirate decodes the same data ok so I am not sure what is going on.
One day I will look a bit deeper.


« Last Edit: March 13, 2013, 05:53:20 am by HackedFridgeMagnet »
 

Offline ve7xen

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Re: Stellaris Launchpad Logic Analyser
« Reply #1 on: March 13, 2013, 05:53:26 am »
Looks like the decoder has detected SCL/SDA incorrectly, you'll probably need to set those manually.
73 de VE7XEN
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Offline HackedFridgeMagnetTopic starter

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Re: Stellaris Launchpad Logic Analyser
« Reply #2 on: March 13, 2013, 06:28:40 am »
Yes that was the case, I turned off auto detect,  and I have less errors.
 
 

Offline Skimask

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Re: Stellaris Launchpad Logic Analyser
« Reply #3 on: March 13, 2013, 07:17:28 am »
WOW!  Great find!  And just when I was wanting one...
I've got 3 of these Launchpad's sitting here at the bench waiting for an application like this.
I didn't take it apart.
I turned it on.

The only stupid question is, well, most of them...

Save a fuse...Blow an electrician.
 

Offline BravoV

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Re: Stellaris Launchpad Logic Analyser
« Reply #4 on: March 13, 2013, 07:20:10 am »
Its about time my launchpad to be loaded with decent app rather than noob apps all this time.  :-DD

Thanks !  :-+

Offline Skimask

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Re: Stellaris Launchpad Logic Analyser
« Reply #5 on: March 13, 2013, 01:54:23 pm »
Its about time my launchpad to be loaded with decent app rather than noob apps all this time.  :-DD
I resemble that remark!  :-//
I didn't take it apart.
I turned it on.

The only stupid question is, well, most of them...

Save a fuse...Blow an electrician.
 

Offline ve7xen

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Re: Stellaris Launchpad Logic Analyser
« Reply #6 on: March 13, 2013, 06:04:59 pm »
Yes that was the case, I turned off auto detect,  and I have less errors.
Seem to correspond with the glitches on your SDA line. They look like legit errors to me.
73 de VE7XEN
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Offline bingo600

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Re: Stellaris Launchpad Logic Analyser
« Reply #7 on: March 14, 2013, 09:48:43 pm »
As somebody pointed out, a logic analyser might be a good use for your Stellaris Launchpad.

Guilty as charged  ::)

/Bingo
 


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