Does this sound like a bad board?

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1

I have been trying to get my beagleboard working. I have a good 5v
power supply. I get the tone and the test pattern on SVideo. When
conencted to the serial port I get a good boot information but it does
not accept any input.

I have used TeraTerm and HyperTerm. I've used three different cables
and two different computers to no avail.

Does it sound like I need to RMA this board, or am I completely
missing something?

Thanks.

2

Joe <joe.plumer@gmail.com> writes:

I have been trying to get my beagleboard working. I have a good 5v
power supply. I get the tone and the test pattern on SVideo. When
conencted to the serial port I get a good boot information but it does
not accept any input.

I have used TeraTerm and HyperTerm. I've used three different cables
and two different computers to no avail.

Does it sound like I need to RMA this board, or am I completely
missing something?

Make sure you have flow control disabled? Are you using a USB serial
adapter on your PC? There have been reports of problems with these.

3

This sounds like a "common" problem. (In the sense that two people
have reported the same symptoms in the past few days). Should we
create a FAQ entry with recommended corrective action? I've heard
return the board and that it may be an issue with the wiring on one
type of header to DB9 cable.

Philip

4

Yes, it's definitely become a FAQ. I'm going to merge my comments
into the BeagleBoardFAQ at http://elinux.org/BeagleBoardFAQ, where
there are already two Serial FAQs.

5

John Beetem wrote:

Yes, it's definitely become a FAQ. I'm going to merge my comments
into the BeagleBoardFAQ at BeagleBoardFAQ - eLinux.org, where
there are already two Serial FAQs.

Done:

http://elinux.org/BeagleBoardFAQ

Dirk

6

Looks good -- thanks. Future Beaglers will be grateful.

7

There is a step by step process at http://elinux.org/BeagleBoard for debugging serial issues.

Gerald

8

There is a step by step process at Beagleboard:Main Page - eLinux.org for debugging serial issues.
This sounds like a "common" problem. (In the sense that two people
have reported the same symptoms in the past few days). Should we
create a FAQ entry with recommended corrective action? I've heard
return the board and that it may be an issue with the wiring on one
type of header to DB9 cable.

Philip

my board seems to be doing the same thing, just got it hooked up, no serial input, coupled rx and tx on the cable, it echos properly, no input at the prompt, boot text appears as normal, logo etc.

i guess its beagle hospital time.

9

my fault, the idc serial i used was the wrong one, corrected and its working.. sorry for the false alarm.

10

OK, so since I last posted I created a new IDC10 - DB9M connector with
the
specified pinouts (1-1, 2-2, 3-3....9-9) and bought the Null Modem
cable that
is known to work with the beagleboard and I get the same results. So
I went
through the troubleshooting FAQs and when I jumper the pins (4 & 6)
what I
type is echoed back to me as expected.

Is it really necessary to buy an LED and 1k resistor? Or can I at
this point
be sure that my beagleboard has the errata #8 issue and RMA it?

Please advise.

11

Just go ahead and RMA it.

Gerald

12

Does the IDC-10 to DB9 on the computer also need to conform to the
pinouts for the beagleboard? I don't believe that it does.

13

Download the new REV B5 manual. It has some pictures to help you debug serial issues.

Gerald