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<cousteau>
Hi!
<PaulFertser>
cousteau: hi
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<cousteau>
I have two identical Olimex JTAG cables. Not too surprisingly, when I connect both to the same computer and run my OpenOCD script, it goes nuts because it doesn't know which one it's supposed to use. Is there a way to tell it "use ttyUSB0, not ttyUSB1"?
<PaulFertser>
cousteau: yes, with "adapter serial" command.
<cousteau>
Cool, thanks! I will look into it
<PaulFertser>
cousteau: btw, in the future I suggest you just ask your question right away, without waiting for anybody to notice your greeting.
<cousteau>
So far I didn't have much luck finding out commands... I'm pretty much using a config script that was already developed by someone else
<cousteau>
PaulFertser: the greeting was just a courtesy, all the time between "hi" and my second message was what it took me to type the whole thing on this mobile phone keyboard :/
<cousteau>
But thanks for replying "hi" anyway :)
<PaulFertser>
cousteau: :)
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<PaulFertser>
Typing on a capacitive touchscreen sucks indeed.
<cousteau>
With two thumbs
<cousteau>
Is [ftdi device_desc] the same as [ftdi_device_desc]? I see documentation on the former but my script uses the latter
<PaulFertser>
cousteau: where are you reading the documentation?
<cousteau>
Those docs mention an [adapter list] command, but if I run `openocd -c 'adapter list'` I get an error saying it doesn't know anything about a "list" subcommand
<karlp>
and what version of openocd are you running?
<cousteau>
Those docs are super out of date, aren't they?
<cousteau>
Yeah, this was just my 2¢ on what PaulFertser said
<karlp>
oh, I fully agree, the "release" docs shouldn't have the rc docs.
<PaulFertser>
So far nobody ever complained about it! I shouldn't have mentioned that ;)
<cousteau>
Oh cool, the installed manpage isn't too complete but there's an info manual
<cousteau>
OK, so here's the outdated documentation to match my outdated install. Now, there seems to be an [ftdi_serial <serial-number>] command I could use, but I have no idea how to figure out that serial number
<PaulFertser>
cousteau: lsusb -v
<cousteau>
PaulFertser: thanks! Yeah, that does list a serial string... Now I'll check the other serial cable and hope it's different (who knows, maybe this manufacturer puts the same serial number on all the cables of the same brand... hopefully not)
<PaulFertser>
cousteau: please let us know how it goes :)
<cousteau>
Thanks :)
<karlp>
there's an option for usb path in latest stuff iirc? applied to all the usb things? not just a "ftdi serial" special ahndling?
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<cousteau>
It seems so... And not so latest too, I see [adapter usb location] in the docs for 0.10 too. But the USB path may change as soon as I unplug and plug the device; seems unreliable.
<cousteau>
At least ttyUSBx is repeatable, just plug the stuff back in order. But yeah, serial will do.
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* cousteau
just realized that having two JTAGs also means trouble with the ports if they're to be used simultaneously
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<cousteau>
I don't know how smart OpenOCD is when choosing ports; if 3333 4444 5555 are already in use I'm not sure it'll be smart enough to choose 3334 4445 5556 or similar, or if I'll need to script that myself... Damn, this is going to be harder than I thought.
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<karlp>
usb path is handy for fixed setups, and repeating builds of infrastructure..
<karlp>
and not all devices have serials for better or worse...
<karlp>
and yes, you do need to script that yourself,
<cousteau>
So, this'll have to wait till I have a chat with my other teammates about this, so that we agree on a setup and what to do next, otherwise I'll start changing things, break their work flow, and they'll yell at me :I
<cousteau>
We use mostly Windows machines at work and then there's the one Linux laptop that is the only one that can do all the stuff we need, so it's completely crowded with USB cables and software and stuff... hence why I'm having trouble with stuff like this (but hey, at least THIS seems to have a solution, even if a bit complicated)
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<sergio_>
Hello. I have some obscure chip with Keil DFP. From DFP I have info about flash operation and I need to create new flash driver - can I somehow just use tcl? Or maybe there is no way without patching OpenOCD?
<sergio_>
Model is N32G031, but there is not much info online
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<karlp>
you need to support the target itself before you can try and do anything with flash.
<karlp>
in general, if the cpu core is supported, you _could_ do it all (slowly) in tcl, by just building up memory read/write operations, but htat's normally painfully slow.
<karlp>
and the amount of work required normally makes it easier to write flashing support in C, gross as C is.
<karlp>
but you definitely have to have support for the core first.
<sergio_>
I wrote a bit of tcl to support the core, at least I think I did it right...
<sergio_>
I just don't want to have a custom build of OpenOCD, it would complicate things a lot
<karlp>
I wasn't really sure you could do core support in tcl, but hey, you can do many things by just throwing more tcl at it I guess... :)
<sergio_>
Hmmm... I just modified config from stm32f0x
<sergio_>
I mean - it's same core, just different register locations
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<sergio_>
OpenOCD drivers look quite modular, but there is no runtime loading. So, just in theory - would it be ok if I try to do a merge request with RTLD support?
<karlp>
ok, so it's a cortex m already then, so yes, the core is already supported :)
<karlp>
I'm not going to answer for anyone else, but the reason you would want to do that is 99% of the time because you want to try and sidestep gpl obligations, so in general, you won'tget much support for trying it...
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<sergio_>
Hmmm, didn't thought about that. I just seen that libopenssl does that kind of modular approach
<karlp>
(when I say "anyone else" I mean "the project" as I don't represent the project here)
<karlp>
openssl isn't gpl....
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<sergio_>
Yeah, I didn't thought about licensing...
<sergio_>
It makes sense now
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<sergio_>
Thanks for clarifications. It helped a lot
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