BS2 Identification Woes

"Hello world!"

Hello,

I am having a time getting my laptop to find my BS2 through a serial connection (my laptop doesn't have usb).· I have turned off FIFO.· I get Loopback: No·· and Echo: No about 2/3 of the time.

Pin1 TX· -8.45v
Pin2 RX· -3.67v
Pin3 ATN· 0v
Pin4 GND· 0v

Went through this check list also:

Check your power supply.

If you are using a PC:
·(1) Make sure you have the most resent version of the software for the
·product you are using from our web site at www.parallax.com

(2) Some systems have their FIFO on for the serial ports. Make sure this
·is turned off.

(3) Some new systems (Dells, Gateways) will allow you to program the
·stamp but will not let it run with the programming cable attached or
·only run when a debug command is in the code. This is a know problem and
·is being worked on. In the mean time the only fix is unplugging the
·cable or putting a debug command in the code.

(4) We have found some new PC's allow you to set the state of a Parallel
·and/or Com port. You will want to make sure that these settings are to
·ON and not auto or off.

(5) Check your power supply.

(6) If you have made your own board please check schematic to insure
·proper wiring.

(7) If you have a Palm pilot or WinCE device software on you system make
·sure that the software is disabled. Unplugging the unit will not stop
·the software from taking or the port.

(8) Make sure you are using the correct software for the operating
·system you are running. Please check www.parallax.com for the most
·recent software available. Note: The Dos software will only work in true
·DOS 3.0 and higher and the Windows software is compatible with 95, 98,
·NT, XP, ME and 2K.

(9) If you are using ·a system with out a dbp9 serial port you will want
·to use http://www.parallax.com/detail.asp?product_id=800-00030 or the
··http://www.keyspan.com/products/usb/USA19HS/ These are the only to that
·we have go to work with the timing of the stamp during programming.

Any ideas?

Thanks for your help,

Matt


Post Edited ("Hello world!") : 10/21/2004 4:51:42 PM GMT

Jon Williams

Can you talk to that BASIC Stamp and board with another computer? Are you able to talk to other serial devices with the PC that's giving you trouble?

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Jon Williams
Applications Engineer, Parallax
Dallas Office

"Hello world!"

Hi Jon,

I tried another computer and the Loopback: No and Echo: Yes but no Device Type was found. I have a SumoBot and a BS2 on a board and they both aren't connecting on both computers. I have tried two different serial cables and one parallel cable.

Not sure what to try next. Are the voltages on the pins okay?

Thanks for your help,

Matt

Jon Williams

Maybe you're using a null-modem cable -- make sure that your programming cable is a straight-through serial cable.

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Jon Williams
Applications Engineer, Parallax
Dallas Office

"Hello world!"

Nope it is a serial cable. I hooked up a null modem adapter though and I get the same results. no loopback and sometimes get the Echo.

"Hello world!"

I tried another computer with my SumoBot and was able to get the Device Type once but when I refreshed the ID Panel it never came back up.

Chris Savage

This might be a longshot, but if it's running on batteries, try a fresh set.



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Chris Savage

Knight Designs
324 West Main Street
P.O. Box 97
Montour Falls, NY 14865
(607) 535-6777

Business Page:·· http://www.knightdesigns.com
Personal Page:··· http://www.lightlink.com/dream/chris
Designs Page:··· http://www.lightlink.com/dream/designs
·

"Hello world!"

SumoBot will connect if I try to download a program. Although it will only connect about 25% of the time. Does the USB connection work better for the stamp?

Matt