Is there a Software tool does what the oscilloscopes do

ibrahem mostafa

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I wrote a code for Input capture and make the input to it's pin PWM
and there is a wrong in result
maybe in PWM code or in Input Capture
so I need a thing like oscilloscope to test. as I didn't have one

over 10 years ago

0 Amit Ashara over 10 years ago

TI__Guru**** 244410 points

Hello Ibrahem,

You can surely look for Logica Analyzers like Salae or LogicPort.

Regards
Amit

0 ibrahem mostafa over 10 years ago in reply to Amit Ashara

Intellectual 510 points

Is there a tool in code composer ?

0 Amit Ashara over 10 years ago in reply to ibrahem mostafa

TI__Guru**** 244410 points

Hello Ibrahem,

I am not sure of the same as I have never used the IDE to monitor high speed signals. May be the question should be asked on the CCS Forum

Regards
Amit

0 cb1 over 10 years ago in reply to Amit Ashara

Guru 47900 points

Amit Ashara said:
...never used the IDE to monitor high speed signals.

Indeed that's where scopes shine - enabling the view of one or multiple signals - at "controlled" points in time.

Can an IDE do that - w/the same ease, flexibility & precision - unlikely...

For those w/out scope access - often an array of signal monitoring Leds - driven by digital or analog signals configured to "latch" - may serve. At high speeds the Led toggle rate will be unrecognizable - yet by "scaling" the input frequency (i.e. divide by 10:1, 100:1 or higher) led toggle speeds may be made viewable - and the overall logic of the user's design confirmed.

This suggestion has bounds - as frequencies increase signal delays, board layout and stray capacitance cause greater impact. That said - even when proper equipment is available - operating at lower speeds (initially) usually does prove of value by confirming the circuit/stage's overall design correctness...

0 Robert Adsett over 10 years ago in reply to Amit Ashara

Guru 27665 points

Segger's J-Scope utility does some of this but it would not be monitoring the hardware, wouldn't be high speed and if you've not already got it then that's an extra expense. Such software based solutions will as cb1 pointed out always be slower and at higher speeds less accurate than a logic analyzer.

Second the suggestion of an USB based logic analyzer. Others here may have experiences that would recommend something inexpensive and effective.

Robert

0 cb1 over 10 years ago in reply to Robert Adsett

Guru 47900 points

Bonjour Robert,

Given enough time - might you reveal "all" of Robert/cb1's, "competitive advantages?" (Segger J-Scope) (Luis is "sneaking up" - is he not?)

0 Randy Ott over 10 years ago in reply to Robert Adsett

Intellectual 750 points

For the money, this one is hard to beat:
dangerousprototypes.com/.../Open_Bench_Logic_Sniffer
I have one at home and a couple here at work. We use them often.

Randy

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Is there a Software tool does what the oscilloscopes do