Responses in-line
On 3/24/2019 11:37 PM, Harvey White wrote:
On Sun, 24 Mar 2019 23:00:42 -0400, you wrote:
Thanks Harvey!
Now what should I do with the other 554 channels? <big grin>
<sound of bits chasing each other.... a lot like crickets.....>
Heh. I was mostly bragging because I'm excited about the possibilities! :) So forgive me!
What I've found on the lower (16700 series) LA's is that the deep
capture is not as useful as you'd like. 2M samples X 16 or more
channels on the display would give a snail a run for its money.
I've got a fully-loaded 16700 too. Yeah scrolling through those is a bit painful. I've done upwards of about 32-channels at a time. Most of the time, because the triggering is pretty decent, you don't need so many samples, you just need the RIGHT samples.
I had a 32-channel 500mhz USB model that only had 2000 sample memory depth. 2000 TRANSITIONS --- so long times between data was ok, like you find in serial data. I really thought it was going to be limited, but it wasn't horribly so. I did eventually "upgrade" to a 24mhz, but super deep (billions of samples), usb one..... and that was good for some things too.
They used to say, fast, cheap, deep, pick two.
Sometimes, though, I don't know exactly what I'm looking for.....so I'm collecting samples to look through and determine the possibilities....what common values might I be seeing.
You might want to use different blades for different tasks, I've only
got one blade in my 16702B, and that does it for most of what I need,
two pods for I2C and the rest for whatever I need. Monitoring the
result of an I2C transmission in another processor board could be
interesting.
Which blade do you have? 715A, 717A, 752A?
How do you decode the I2C? On the unit itself? I forget, was serial decoding an option?
I was exporting via FTP the flat data files from captures, and then using the latest Logic Analyzer 5.90 software on a faster machine to interpret them. Just much nicer using a modern PC...... I'm happy that the modern PC can now control and connect to the other LA remotely!
I may end up doing that, but I don't think I need quite so many
channels...
<grin>
Thanks! ;)
Keith
Keith Monahan