Unablel to Give input characters on putty

Hi,

I am using usb to serial cable for beagleboard as i dont have uart
port on my laptop. I am able to see the boot logs coming but i am not
able to give the input at "omapbeagleboard#" prompt.

Can somebody help me regarding this

--Rajesh

Remove this usb-uart cable from BB and connect pins RX with TX. Open terminal fro this ttyUSB and try to print something. All symbols must be echoed back.

2010/10/11 rajesh <gnvr.ece@gmail.com>

Hi maxim
all symbols are echoing back on the putty terminal can you help me in
finding what went wrong
---rajesh

rajesh wrote:

Hi,

I am using usb to serial cable for beagleboard as i dont have uart
port on my laptop. I am able to see the boot logs coming but i am not
able to give the input at "omapbeagleboard#" prompt.

Can somebody help me regarding this

Yes, your serial cabling is wrong, you have the wrong kind of DB9
to IDC10 cable


This is the 2nd person I saw with this isssue

I have a C4 I used the tin can tools adapter and connected it directly to a Radio shack USB to serial with a DB9 I use no null modem or straight through cable between them.
It works FOR INPUT OR OUTPUT.

Also check your terminal settings

The other person having trouble had an XM board which has a DB9

— On Mon, 10/11/10, Vladimir Pantelic vladoman@gmail.com wrote:



> From: Vladimir Pantelic vladoman@gmail.com
> Subject: Re: [beagleboard] Unablel to Give input characters on putty
> To: beagleboard@googlegroups.com
> Date: Monday, October 11, 2010, 9:28 AM
>
> rajesh wrote:
> > Hi,
> >
> > I am using usb to serial cable for beagleboard as i dont have uart
> > port on my laptop. I am able to see the boot logs coming but i am not
> > able to give the input at “omapbeagleboard#” prompt.
> >
> > Can somebody help me regarding this
>
> Yes, your serial cabling is wrong, you have the wrong kind of DB9
> to IDC10 cable
>
> –
> You received this message because you are subscribed to the Google Groups “Beagle Board” group.
> To post to this group, send email to beagleboard@googlegroups.com.
> To unsubscribe from this group, send email to beagleboard+unsubscribe@googlegroups.com.
> For more options, visit this group at http://groups.google.com/group/beagleboard?hl=en.

|

rajesh wrote:

Hi,

I am using usb to serial cable for beagleboard as i dont have uart
port on my laptop. I am able to see the boot logs coming but i am not
able to give the input at "omapbeagleboard#" prompt.

Can somebody help me regarding this

you could also have a look here:

http://elinux.org/BeagleBoardFAQ#Serial_connection_.231

Vladimir, I don’t agree with you. If Rajesh had wrong TX/RX wires in a cable then he would not see anything, but he really sees output.

Rajesh, what about HW handshake parameters in your terminal? May be your USB-serial controller waits for RTS signal? Beagleboard provides only RX and TX lines for the console port, nothing else.

2010/10/11 Vladimir Pantelic <vladoman@gmail.com>

Maxim Podbereznyy wrote:

Vladimir, I don't agree with you. If Rajesh had wrong TX/RX wires in a
cable then he would not see anything, but he really sees output.

Well, I am sure that I had a huge number of people on irc who resolved
their serial problems after being told "check your cabling" several times.

whatever the cabling is, just make sure that PC-TX is connected to BB-RX
and PC-RX is connected to BB-TX and GND to GND. It's 3 lines, very easy
to check...

and yes, HW and SW flow control must be not used of course..


Also Rajesh what board do you have ?what cables are you suing?


you need to be more explicit

I cc’d Richard who has the same issue with xM and he is using minicom on l.inux maybe he has solved this?

I used hyperterminal/teraterm in windows and handshaking needs to be set to none I have C4

I also wonder about linux support for some of these USB->serial

Try it in windows but avoid vista if possible

I have a work project where linux host support is limited to 115200

I know there are fixes for that on the net

I just got my "Dog House " I cant wait to give my beagle a new dog house

— On Mon, 10/11/10, Maxim Podbereznyy lisarden@gmail.com wrote:



> From: Maxim Podbereznyy lisarden@gmail.com
> Subject: Re: [beagleboard] Unablel to Give input characters on putty
> To: beagleboard@googlegroups.com
> Date: Monday, October 11, 2010, 10:49 AM
>
> Vladimir, I don’t agree with you. If Rajesh had wrong TX/RX wires in a cable then he would not see anything, but he really sees output.
>
> Rajesh, what about HW handshake parameters in your terminal? May be your USB-serial controller waits for RTS signal? Beagleboard provides only RX and TX lines for the console port, nothing else.
>
> 2010/10/11 Vladimir Pantelic <vladoman@gmail.com>
>
> > rajesh wrote:
> >
> > > Hi,
> > >
> > > I am using usb to serial cable for beagleboard as i dont have uart
> > > port on my laptop. I am able to see the boot logs coming but i am not
> > > able to give the input at “omapbeagleboard#” prompt.
> > >
> > > Can somebody help me regarding this
> >
> > you could also have a look here:
> >
> > http://elinux.org/BeagleBoardFAQ#Serial_connection_.231
> >
> > –
> > You received this message because you are subscribed to the Google Groups “Beagle Board” group.
> > To post to this group, send email to beagleboard@googlegroups.com.
> > To unsubscribe from this group, send email to beagleboard+unsubscribe@googlegroups.com.
> > For more options, visit this group at http://groups.google.com/group/beagleboard?hl=en.
>
> –
> You received this message because you are subscribed to the Google Groups “Beagle Board” group.
> To post to this group, send email to beagleboard@googlegroups.com.
> To unsubscribe from this group, send email to beagleboard+unsubscribe@googlegroups.com.
> For more options, visit this group at http://groups.google.com/group/beagleboard?hl=en.

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