USB port on proto board - or is it my lap-top?

Tapperman

Dallas Semiconductor DS-1620 thermal probe. Comments may not be current in program.

When I run the attached program, it keeps rebooting on my proto board. Now here’s the problem, it only just started doing this two days ago! I’ve been using in for some time now, with no issue. Then suddenly, its behavior changed.

Nothing has changed on the laptop, no software was installed or removed. But I thought the problem might be related to the USB chip on the proto board, soI tried it out on a new proto board. And I get the same result.

I should mention, I’m running the parallax data gathering macro that runs on excel. Which uses an OCX or something, correct?

... Tim

Tapperman

No one has this problem either?

Phil Pilgrim (PhiPi)

In your photo, the proto board is not connected to a PC. Is it under this circumstance that the Prop continuously reboots? If so, it's a well-known issue.

-Phil

Tapperman

Phil Pilgrim (PhiPi) wrote: »

In your photo, the proto board is not connected to a PC. Is it under this circumstance that the Prop continuously reboots? If so, it's a well-known issue.

-Phil

Thanks for the help! And yes 'data gathering' mode. The funny part is, it actually worked for several nights collecting data! I'll just re-write it using a high eeprom flag, and hope that cures it! These well known issues ... where do you find them?

... Tim

nohab

This is one, of many, threads where the problem is mentioned, and with a little work-around I'm using.

http://forums.parallax.com/showthread.php?129627-Is-there-a-way-to-query-for-presence-of-serial-connection-to-enable-disable-PST

/Niclas

Phil Pilgrim (PhiPi)

Adding 4.7K pullups to P30 and P31 will also cure the problem.

-Phil