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Frank Matthews
01-14-2006, 10:57 AM
I'm getting a Hardware Communication Error when I try to download a program into my BS1 version 1.4 via my new (today) serial adapter. It asks me to check the serial connection and power supply. When I ask it to identify, that works fine. But, during the download I get the stated error message. I've tried another adapter (I ordered two) and I get the same error. The same cable works fine on the BS1 Project Board and BS2 Homework Board. Tried new batteries as well. What am I overlooking? I'm also using Editor Version 2.2.5

Thanks,

Frank

PJ Allen
01-14-2006, 11:45 AM
Not apart from the obvious stuff -- like (sorry, but...):

is the serial adapter connected to the STAMP right, with regard to the Index mark / "divvit"? is it plugging into your own board?· if so, is the interconnect between your serial adapter mating pins and the Stamp right?

A "1.4" -- is that the BS1-IC?

BS1-IC Pin 2 = VSS (GND) = serial adapter "divvit" BS1-IC Pin 3 = PCO BS1-IC Pin 4 = PCI

Frank Matthews
01-14-2006, 12:10 PM
Not apart from the obvious stuff -- like (sorry, but...):

Don't apologize...I'd of ask the same thing! http://forums.parallax.com/images/smilies/tongue.gif

is the serial adapter connected to the STAMP right, with regard to the Index mark / "divvit"?

Yes is it plugging into your own board?·No, this is a BS1 carrier board from Parallax.·if so, is the interconnect between your serial adapter mating pins and the Stamp right?

A "1.4" -- is that the BS1-IC? Yes

BS1-IC Pin 2 = VSS (GND) = serial adapter "divvit" BS1-IC Pin 3 = PCO BS1-IC Pin 4 = PCI

All of the above is correct.

Jon Williams
01-14-2006, 12:12 PM
Vss is marked ">>" on the BS1-SA and any BS1-compatible board. The only time I've ever seen a problem with the BS1-SA is when a customer continued to plug it in upside down. Make sure the comm port you want to use for programming is available.

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Jon Williams
Applications Engineer, Parallax

Chris Savage
01-14-2006, 12:30 PM
Frank,

·· Are you using a Desktop or a Laptop computer?· Are you using a standard Serial Port or a USB to Serial Adapter?

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

Frank Matthews
01-14-2006, 12:32 PM
Found the problem! A bad BS-1. Tried another one and it works like a champ! I've had it in storage a few years and finally broke it out to give the serial adapter a try. Good thing I always buy more than one of something most of the time! http://forums.parallax.com/images/smilies/smile.gif

Frank Matthews
01-14-2006, 12:36 PM
Chris

Using a desktop with standard serial port and straight-thru serial cable. Again, appears to be a bad stamp as another one works fine. Never used this "backup" until now. Out $29 bucks. :-(