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Valued Contributor III
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SignalTap II or In-System Sources Probes Editor

Hi, 

I have just upgraded to version 10.1 of QuartusII. I can see a new test interface "In-System Sources Probes Editor". I have always used the SignalTap II for debugging. 

Can anyone tell me what is better to use for new designs? I have read about the new interface and is it correct that its strength is that it is possible to generate test patterns to input pins? 

 

Regards, 

Morten
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Valued Contributor III
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Re: SignalTap II or In-System Sources Probes Editor

is Sources and Probes really that new of a feature? to me they have slightly different applications. 

 

Sources and Probes is great for board bring up to toggle outputs and read inputs without writing any HDL (besides a port map). it is also useful for emulating push buttons or similiar signals 

 

SignalTap is "read only" but has simple and complex triggers. it can buffer a large amount of data which is then read out by JTAG which is really useful for in system debug
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Valued Contributor III
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Re: SignalTap II or In-System Sources Probes Editor

 

--- Quote Start ---  

is Sources and Probes really that new of a feature? to me they have slightly different applications. 

 

Sources and Probes is great for board bring up to toggle outputs and read inputs without writing any HDL (besides a port map). it is also useful for emulating push buttons or similiar signals 

 

SignalTap is "read only" but has simple and complex triggers. it can buffer a large amount of data which is then read out by JTAG which is really useful for in system debug 

--- Quote End ---  

 

 

Hi, 

 

keep in mind tha tyou have to build-in the "Source and Probe" instance directly in your source code by yourself. For signaltap you don't have to change your source code. 

 

Kind regards 

 

GPK
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Valued Contributor III
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Re: SignalTap II or In-System Sources Probes Editor

good point

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Valued Contributor III
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Re: SignalTap II or In-System Sources Probes Editor

Thanks for your replies. I think I got a better understanding of the differences between the two.

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