Does the poke example work when the JTAG programmer is removed, and
you use a USB to serial adapter to talk to the programmed LPC2148

I can see from minicom that the RS232_0 serial port is outputting
data.    Button presses seem to produce output also.  However, the
board isn't echoing anything I type at it, so I'm concerned the board
can't hear me.

The screenshot shows a serial only connection, but I can't use a
straight serial cable because my host PC doesn't have a serial port.



On Wed, Jan 28, 2009 at 10:54 PM, Sarah A Sharp <> wrote:
> Heh, nevermind.  I figured it out.  Apparently the documentation
> points to an old config file and the correct config file to use is
> openocd_lpc2148_v1257.cfg
> Fixing the documentation to match.
> Sarah
> On Wed, Jan 28, 2009 at 10:51 PM, Sarah A Sharp <> wrote:
>> Unfortunately I don't think I have a 9V wall wort.  I'll look around...
>> I'm running into an issue before I can even program the board.  I get
>> the error message 'invalid command name "daemon_startup_attach"' when
>> I try to run the command
>> sudo /home/sarah/git/lpc-kit/LPC/2148/OCD/bin/openocd -s
>> ../../../../Config/2148 -f openocd_lpc2148.cfg
>> I'm trying to download the poke example to the board.  Jamey seems to
>> think the config file is wrong for this version of openocd.  I used
>> the psas OCD download script, and the version seems to be the same one
>> recommended by the documentation:
>>  $ openocd -v
>> Open On-Chip Debugger 1.0 (2009-01-28-22:13) svn:1257
>> Suggestions?
>> Sarah
>> On Wed, Jan 28, 2009 at 10:44 PM, Dave Camarillo
>> <> wrote:
>>> Hi Sarah, that pretty much correct. One interesting side thing is that
>>> sometimes the olimex jtag programmer is unable to provide enough power
>>> to the 2148 board, and you run into flashing problems. You can avoid
>>> this by using a 9VDC wall wart. My hypothesis is that this stems from
>>> the lack of current sourcing abilities of some laptops (mainly my
>>> laptop), so it may also be mitigated by using a powered hub.
>>> Hope that's of some assistance...
>>> -dave
>>> On Thu, Jan 29, 2009 at 6:36 AM, Sarah A Sharp <> 
>>> wrote:
>>>> Hi Kay,
>>>> Do these directions look right for the cabling/jumper setup for the
>>>> LPC2148 board and Olimex OCD JTAG programmer?  I couldn't remember if
>>>> there needs to be an other USB cable from the LPC2148 to the host PC
>>>> or not when I'm trying to program the board.
>>>> 1. Make sure to set the Olimex JTAG programmer to 9V by jumpering on
>>>> the right-most pins (the two farthest away from the JTAG cable).
>>>> 2. Plug a USB cable from the JTAG programmer to your computer.
>>>> 3. Power the LPC2148 dev board by plugging it into the JTAG programmer
>>>> with the white cable.
>>>> 4. Make sure the LPC2148 debug jumper is jumpered (the DBG_E pins are
>>>> next to the JTAG port)
>>>> 5. Set both dip-switches on the LPC2148 board to the 'off' position.
>>>> Did I miss anything?  I'm putting these directions into the
>>>> documentation for the project, since they seem to be scattered between
>>>> the Keil documentation, the Olimex schematic, and the PSAS wiki.
>>>> Sarah Sharp
>>>> _______________________________________________
>>>> psas-avionics mailing list

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