Quote:
|
Originally Posted by Joe Hershberger
If you are not getting the VISA error when it aborts the frame grab, then the serial delay is not likely to help. So the LED continues to blink after the download bar disappears? That would indicate that it is quiting early. There are currently three reasons why the frame grab stops. If there is an error, if the expected time plus 50% passes, or enough bytes appear.If you look at the image, when only a partial frame is downloaded... does i look like there are lines missing in the middle, or does it look complete and error free up to the point that the image is truncated? If it's not an interrupt servicing issue, then it's most likely data corruption. Is your serial cable frayed or shorting out? Are you running lots of motors around it? Is your battery FULLY charged?
In that case I'm surprised you ever got that VISA error. Did you check for PIO mode?
I'm glad to hear it works somewhere! I thought maybe you wouldn't believe that it works here! 
Let me know,
-Joe |
The partial image is complete, as far as it goes - no missing lines. I have used 2 serial cables, both look OK, both give the same result. No motors or robot controller - I run the camera stand-alone on my desk. Battery is fully charged, and voltage stays about 7.5 volts while running. COM1 / Resources shows IRQ 4; no PIO.
Micrsoft Antispyware used 9% of cpu every few seconds. Killed it, but no change. Other processes use 2-3% every few seconds.
LabView is now adequate for my purpose.