Re: [Gumstix-users] problems connecting FT232 logic level serial adapter

[notstix <art...@ho...>]

Dave Hylands wrote:
> 
> Hi notsitx,
> 
>> today done some tests with windows hyperterminal. Got garbage with low
>> speeds. If speed is 115200 then it is readable. Few months ago it worked
>> with lower speeds. It's possible that my ftdi chip is bad and needs
>> replacing.
> 
> I get stuff like this if I'm using a robostix with a verdex.
> 
> You can also get this with a bad connection (bad grounds are notorious
> for this type of problem). Check your solder joints. A cold solder
> joint can cause problems like this.
> 
> -- 
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
> 
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> 
Hi,

Checked with multimeter and gnd,tx and rx are fine. Don't know about ftdi
chip but it seems ok too.
But now I discovered how I can log into my gumstix.
Firstly, I connect USB cable to ftdi chip. Then I have /dev/ttyUSB0.
Secondly, I do #cat /dev/ttyUSB0 and after that I power my gumstix.
Then I see booting stuff from cat and when It prints login text and asks for
username I hit ctrl-c in cat window.
Then I #kermit -l /dev/ttyUSB0 and do that:
set carrier-watch off
set speed 115200
set stop-bits 1
set parity none
set flow-control none
set handshake none
connect

and I can log in ! :D

If I exit kermit and disconnect usb then I have to do all that booting stuff
again. If I don't exit kermit it creates new device ttyUSB1 and I can't
connect to it.

Another thing I found is that cat /dev/ttyUSB0 gives garbage some first
lines.

http://www.nabble.com/file/p14036057/cat_and_kermit.txt cat_and_kermit.txt 

Then


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