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Author Topic: no JTAG dreamplug  (Read 3354 times)
andytof47
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« on: August 30, 2011, 01:18:49 AM »

Ok, So I have my DP

and I am going to upgrade my debian. I have tried
windows - putty
linux 10.04 - gtkterm, putty, minicom, cu
linux 10.10 - still nothing

I have watched a video on it for windows and am certain I have followed the instructions correctly

My jtag lights flash but there hasn't been a single bit of output in any terminal program..

I need help

here is dmesg | grep tty
[ 9461.748846] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB1

I really want to upgrade and specifically bought the jtag for this and other tinkering purposes

plz help Huh Huh
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leighbb
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« Reply #1 on: August 30, 2011, 01:46:28 AM »

Ok, So I have my DP

and I am going to upgrade my debian. I have tried
windows - putty
linux 10.04 - gtkterm, putty, minicom, cu
linux 10.10 - still nothing

I have watched a video on it for windows and am certain I have followed the instructions correctly

My jtag lights flash but there hasn't been a single bit of output in any terminal program..

I need help

here is dmesg | grep tty
[ 9461.748846] usb 3-1: FTDI USB Serial Device converter now attached to ttyUSB1

I really want to upgrade and specifically bought the jtag for this and other tinkering purposes

plz help Huh Huh

For PuTTY on Linux your settings need to be as follows :-

Connection type: serial
Serial line: /dev/ttyUSB1
Speed: 115200

That should do the trick.  I actually use picocom as its very small and easy to use.  Install it on Linux then run it like this :-

picocom -b 115200 /dev/ttyUSB1

Hope this helps.
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andytof47
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« Reply #2 on: August 30, 2011, 03:45:56 AM »

Hey thanks for the reply

Still no joy with picocom - terminal just sits and does nothing

really I thought Linux to linux it would recognise it, but I've tried on 2 seperate PC's a windows box and nothing

But the Jtag still opens up and registers keystrokes....

PS - I already had the putty settings but thanks for the help

anymore thoughts would be appreciated

cheers
Andy
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leighbb
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« Reply #3 on: August 30, 2011, 03:54:37 AM »


Assuming your Dreamplug is working, have you tried

echo something >/dev/console

Also, have you tried powering on the dreamplug while picocom is running?

Stupid question time - you do have UART cable connected from the JTAG to the Dreamplug, and it is pushed in all the way?  You don't actually need to connect the JTAG cable for the console to work.  Finally, is the slider on the front of the JTAG unit set to UART (left)?
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andytof47
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« Reply #4 on: August 30, 2011, 02:48:27 PM »

 Smiley
Hehe, My wife laughs and says i'm a moron, but that's the thing about silly questions, they just aren't that silly. Turns out I didn't have the UART connector in - very embarrassed.

I will bet that every program works now - screen already does

thanks heaps
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