Difference between revisions of "LogicAnalyser"
From Hackbox
(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 …') |
|||
| (3 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
| − | + | 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) | ||
| Line 12: | Line 14: | ||
Caveats: | Caveats: | ||
* while sampling, you cannot interact with the PC at all! | * while sampling, you cannot interact with the PC at all! | ||
| − | * so be careful with continuous mode: you get a brief | + | * so be careful with continuous mode: you get a brief chance 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. | * the sampling first waits for a trigger, i.e. a transition on the trigger channel. | ||
| + | |||
| + | ==To Do== | ||
| + | |||
| + | Possible improvements: | ||
| + | * [http://tfla-01.berlios.de/] | ||
| + | * [http://www.codeproject.com/KB/system/17ChannelLogicAnalyzer.aspx] | ||
Latest revision as of 00:58, 6 January 2011
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 chance 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.
To Do
Possible improvements:
