.:madworm:.'s photos with the keyword: code

Ripples in the numerical universe

Ripples in the numerical universe

.:madworm:.
15 Mar 2011 99
Mathematica was used to create this.
Just some serial I/O with labview

Just some serial I/O with labview

.:madworm:.
07 Feb 2011 154
Polling date from a device via serial.
This trigger point looks right

This trigger point looks right

.:madworm:.
19 Apr 2012 136
This one should have (and has) triggered on a positive pulse of 103µs length.
Confused trigger

Confused trigger

.:madworm:.
19 Apr 2012 117
This one should have triggered on a positive pulse shorter than 16.5µs.
Confused trigger

Confused trigger

.:madworm:.
19 Apr 2012 127
This one should have triggered on a negative pulse of 14.0µs length.
MIBAM - OK ISR run time

MIBAM - OK ISR run time

.:madworm:.
19 Apr 2012 161
Now the ISR is short enough as not to interfere too much with the least significant bits.
MIBAM - bad ISR runtime

MIBAM - bad ISR runtime

.:madworm:.
19 Apr 2012 161
The ISR takes too long and messes up the timing of the least significant bits.
MIBAM - delayed interrupt

MIBAM - delayed interrupt

.:madworm:.
19 Apr 2012 161
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 - trying to get it to trigger

MIBAM - trying to get it to trigger

.:madworm:.
19 Apr 2012 163
MIBAM

MIBAM

.:madworm:.
19 Apr 2012 161
Playing with the persistence setting. It is variable, but unfortunately the old traces don't fade out. They just vanish after a timeout.
Confused trigger

Confused trigger

.:madworm:.
19 Apr 2012 156
This one should have triggered on a positive pulse longer than 177µs.
Confused trigger

Confused trigger

.:madworm:.
19 Apr 2012 147
This one should have triggered on a positive pulse shorter than 73µs.