Hi Manuel,
First i appologize any inconvinience i made when im using this mailing
list.This is very first time of using developers mailing list.
Im going to perform boundary scanning operations on a CPLD or FPGA with
OpenOCD. Actually Open ocd has some good properties thats why i have
selected this.Its free and opensource. support JTAG etc...
What im doing is running boundaryscannings with a above PLDs.Thats why im
talking about different topic again and again.If OpenOCD support for CPLD
degugging it will be a powerful tool.That is my view.
Thank you so much for the answer. Your advice is correct. i didnt defined a
target that was the problem.Now i can communicated with GDB.
While im defining a target, there is no target type is available for CPLD
or FPGA families.There i have strugguled. so i have configured XC9536XL
which is im using as CotexM3 target. But polling error is occured with
nearly 6 seconds durations.( the problem was there is no specific target
type).Could you please give your advice on this?
Im discusing about a different topic other than the topics discussed among
the developers.Is it a disturbance to the community? Because im doing a
different work. Im sorry if i made any mistake here.Thank you so much for
the valuble help given at the mailing list.Thank you
Nuwan
>
> On Mon, Aug 20, 2012 at 5:42 AM, Manuel Borchers <[email protected]>wrote:
>
>> Hi Nuwan,
>>
>> Note: please keep the list CC'ed, so that everyone has the ability to
>> follow the discussion.
>>
>> It's actually not very clear what you are trying to achieve here. Again:
>> GDB is for debugging software that runs on a microprocessor or
>> -controller. A CPLD in itself isn't a processor and therefore GDB
>> doesn't fit in your scenario. I guess that you could connect at some
>> point because you had some target config, which was faking a processor.
>>
>> I guess (I actually don't know exactly, because I'm not into the
>> internals of OpenOCD) the GDB port is not opened and available (->
>> timeout when you try to connect to it), because you have no target
>> configured in your config files (we can only guess, as you didn't show
>> your condig file). This is correct, as the CPLD is no processor and
>> therefore has no target configuration.
>>
>> As Freddie pointed out, you can only send SVF files to the CPLD:
>> -- snip --
>> # first define a interface and speed
>>
>> jtag newtap LC4032ZE tap -irlen 8 -expected-id 0x01806043
>> init
>> svf some_file.svf
>> sleep 200
>> shutdown
>> -- snap --
>>
>> (This is untested by me, I currently don't use OpenOCD for CPLDs/FPGAs).
>>
>> I don't think that you should go on trying to get GDB working, as it is
>> not intended to be used for CPLDs/FPGAs. The telnet interface (on port
>> 4444) should be what you are looking for to send commands or SVF files.
>>
>> Cheers,
>> Manuel
>>
>>
>> Am Montag, den 20.08.2012, 06:07 -0400 schrieb Nuwan Jayasekara:
>> > I want to connect to CPLD with GDB to have boundary scans.i have
>> > execute them previously.by typing gdb at terminal
>> > then
>> > target remote localhost:3333
>> > then i executed some commands.but nwo this command following error
>> > (gdb) target remote localhost:3333
>> > localhost:3333: Connection timed out.
>> > (gdb)
>> >
>> > what will be the reson? for this i need a help to get rid of this.
>> >
>> > Thanks
>>
>> --
>> Manuel Borchers
>>
>> Web: http://www.matronix.de
>> eMail: [email protected]
>>
>>
>
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