Difference between revisions of "LogicAnalyser"
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(Created page with ' Using the software and hardware described [http://www.xs4all.nl/~jwasys/old/diy2.html here]. I've used these settings to debug the audio circuits of the MEK6800: * trigger …') |
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| − | + | Using the software and hardware described [http://www.xs4all.nl/~jwasys/old/diy2.html here]: | |
| − | Using the software and hardware described [http://www.xs4all.nl/~jwasys/old/diy2.html here]. | + | * on the TransferPC |
| + | * using the suggested 75HC245 to protect the parallel port. | ||
| + | * only 2 probes | ||
I've used these settings to debug the audio circuits of the [[MEK6800]]: | I've used these settings to debug the audio circuits of the [[MEK6800]]: | ||
* trigger channel: 1 (I wish I could disable triggering) | * trigger channel: 1 (I wish I could disable triggering) | ||
| − | * pre trigger delay: 0 | + | * pre-trigger delay: 0 |
* sample size: 2000 | * sample size: 2000 | ||
* sample period: 2 (this is the resolution, but don't set to 1) | * sample period: 2 (this is the resolution, but don't set to 1) | ||
Revision as of 03:19, 29 December 2010
Using the software and hardware described here:
- on the TransferPC
- using the suggested 75HC245 to protect the parallel port.
- only 2 probes
I've used these settings to debug the audio circuits of the MEK6800:
- trigger channel: 1 (I wish I could disable triggering)
- pre-trigger delay: 0
- sample size: 2000
- sample period: 2 (this is the resolution, but don't set to 1)
- granularity (read only): 1.65 us.
- zoom: length 5.28 ms
Caveats:
- while sampling, you cannot interact with the PC at all!
- so be careful with continuous mode: you get a brief change to stop after each sample period (which can be long depending on the settings)
- the sampling first waits for a trigger, i.e. a transition on the trigger channel.
