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View Full Version : stamp not downloading code :shocked:



chcummings2001
05-19-2006, 12:16 AM
when i try downloading the code onto the stamp, the program says it sees the stamp but it cannot download program onto stamp and to check power supply. i checked my 9v battery and it is running at 8.6v. mabey it has something to do with using a 9 pin serial to usb adaptor or the length of the cable. i dont know. i am new to electronics. can anyone give me any leads?

Post Edited By Moderator (Chris Savage (Parallax)) : 5/18/2006 6:22:37 PM GMT

Chris Savage
05-19-2006, 01:23 AM
What adapter are you using?

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Chris Savage
Parallax Tech Support
csavage@parallax.com (mailto:csavage@parallax.com)

chcummings2001
05-19-2006, 05:32 AM
hi,
the adaptor i used is called a usb pda/ serial adaptor cable made by dynex. it says that it works with devices that have rs-232 interface and that it supports data transfer rate up to 500 kbps. all greek to me.

Post Edited By Moderator (Chris Savage (Parallax)) : 5/19/2006 3:04:48 AM GMT

dandreae
05-19-2006, 06:20 AM
Not all USB to serial adapters will work with the BASIC Stamps. Radio Shack carries a known good and we carry the FTDI Usb to serial adapter that works perfect. Here is a link for more information: http://www.parallax.com/detail.asp?product_id=800-00030

Dave

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Dave Andreae

Tech Support
dandreae@parallax.com (mailto:dandreae@parallax.com)
http://www.parallax.com


Chris Savage
05-19-2006, 10:05 AM
And please stop posting every emoticon into each message you post...It's impossible to read the message with so many animated faces jumping all over.

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Chris Savage
Parallax Tech Support
csavage@parallax.com (mailto:csavage@parallax.com)

Dave T
06-21-2006, 03:41 AM
SERSPL.VXD

This is the driver with the idotConnect USB-Serial Cable (by PPA Int'l)
Does anyone know if this will work?

So far, it doesn't appear to allow me to download code to the BASIC Stamp, but I am now sure how to know if there is some other problem or if this is it.

allanlane5
06-21-2006, 03:46 AM
Note most USB adapters that support PDA's tend NOT to properly support the 'handshake' signals that the BS2 needs. They do this to cut costs, but it makes it useless for BS2 applications.

Thus the recommendation for the Radio Shack, and FTDI, (and the Keyspan 19w), all of which have been proven to work properly. And it's not a problem with the BS2, it's a problem with cheapo companies that take too many shortcuts when they make their USB adapters.

Chris Savage
06-21-2006, 09:31 PM
As a side-note on the KeySpan, I am no longer recommending that one for Laptop users, as when there are timing issues, their driver is nearly impossible for the end user to access. It replaces the Advanced Settings with some strange setup wizard and many customers don't know what anything in there does. I can never even remember so I cannot help customers when they're using that driver.

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Chris Savage
Parallax Tech Support
csavage@parallax.com (mailto:csavage@parallax.com)

Dave T
06-27-2006, 01:11 AM
SERSPL.VXD

This is the driver with the idotConnect USB-Serial Cable (by PPA Int'l)


In case anyone is curious, this driver and cable does work! (and it is only $15 at Fry's)

Chris Savage
06-27-2006, 01:13 AM
DaveT,

Does it work on many different systems, including Laptops and Desktops? We extensively tested a few adapters and some will work on a few selected machines, but not all.

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Chris Savage
Parallax Tech Support
csavage@parallax.com (mailto:csavage@parallax.com)

Husky X3
07-09-2006, 05:27 AM
I think this is somewhat amusing:

I had the same problem and I bought the $15 cable at Fry's. After i loaded the drivers, I had great success. SAME PROBLEM----SAME SOLUTION just a couple of days before you did!