.:madworm:.'s photos

Creating a DSO trigger test jig

Creating a DSO trigger test jig

21 Apr 2012 133
SPI binary counter
Creating a DSO trigger test jig

Creating a DSO trigger test jig

21 Apr 2012 138
Missing pulse / runt pulse.
Creating a DSO trigger test jig

Creating a DSO trigger test jig

21 Apr 2012 156
Some serial data.
Fixed Floppy Drive

Fixed Floppy Drive

20 Apr 2012 131
Solder joint fatigue

Solder joint fatigue

20 Apr 2012 139
I don't remember abusing this connector. It stopped working today.
Dirty little bugger

Dirty little bugger

19 Apr 2012 172
Now I desire some sort of pattern trigger... oh the pain... I had to press single-shot again and again to capture this one.
Dirty little bugger

Dirty little bugger

19 Apr 2012 148
If you're serious about a scope, don't buy one without some sort of persistence. Get one that smoothly fades out if you can.
Confused trigger

Confused trigger

19 Apr 2012 222
This one should have triggered on a positive pulse shorter than 73µs.
Confused trigger

Confused trigger

19 Apr 2012 211
This one should have triggered on a positive pulse longer than 177µs.
MIBAM

MIBAM

19 Apr 2012 212
Playing with the persistence setting. It is variable, but unfortunately the old traces don't fade out. They just vanish after a timeout.
MIBAM - trying to get it to trigger

MIBAM - trying to get it to trigger

19 Apr 2012 238
MIBAM - bad ISR runtime

MIBAM - bad ISR runtime

19 Apr 2012 224
The ISR takes too long and messes up the timing of the least significant bits.
MIBAM - delayed interrupt

MIBAM - delayed interrupt

19 Apr 2012 227
Once in a while the interrupt gets delayed. The green pulse-train shows when and how long the ISR runs. This causes fluctuations in brightness.
MIBAM - OK ISR run time

MIBAM - OK ISR run time

19 Apr 2012 232
Now the ISR is short enough as not to interfere too much with the least significant bits.
5899 items in total