Author Topic: Ndless 1.7 for TI-Nspire  (Read 134652 times)

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Offline critor

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Re: Ndless 1.7 for TI-Nspire
« Reply #255 on: November 25, 2010, 08:33:33 am »
Just because on TI-BANK and United-TI you can put down (en français vous dîtes "enfoncer" je crois?) members who ask simple questions and miss the answer buried among the previous three hundred messages without worrying if they will feel welcome anymore or not, it doesn't mean you are allowed to do so on Omnimaga.

Please DJ, don't get mad at me, but I'd like to say something.

Not something about your decision. You're right.
It's true that Levak's post seems agressive to me.
Was it meant? I don't know... Just remember that Levak doesn't speak english natively.
He is taking the time to share his knowledge in english, and he may use the right technical terms, but not the right non-technical terms... He might not have wanted to sound so agressive...
Of course, like you I hope there won't be a next time but if there is, I beg you, please take that into consideration before taking a big decision.

No, it's something about your comment.
I don't know about UTI, but on TI-Bank neither Levak nor the TI-Bank team does put down new members... We are taking the time to post comprehensive answers, and repeat them in other topics if necessary.
Thank you for reading.


Now, back on topic.

Thank you all for the Ndless tests and those great news! ^^
« Last Edit: November 25, 2010, 08:45:01 am by critor »
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Offline DJ Omnimaga

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Re: Ndless 1.7 for TI-Nspire
« Reply #256 on: November 25, 2010, 09:47:48 am »
Sorry if it sounded like I was saying that you and Levak were putting new TI-BANK members down, it was an example of if you ever decided to do it you may not have any problems, not necessarly saying you were actually doing it. I should probably have said that differently. I'll edit that part of my post to make sure it won't be taken that way anymore. I was saying TI-BANK and United-TI because I do remember people there doing that. I even intervened in one topic to explain that everyone has to start somewhere. Sorry about that.
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Offline critor

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Re: Ndless 1.7 for TI-Nspire
« Reply #257 on: November 25, 2010, 09:49:03 am »
No problem :)
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Offline calcforth

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Re: Ndless 1.7 for TI-Nspire
« Reply #258 on: November 25, 2010, 10:05:15 am »
I don't think it has anything to do with USB versions.
Actually it kida does. USB 1.x, 2.0 and 3.0 are joined but separate (like oil and water): they have different protocols (if you'll see topology in your device tree list you'll see that USB 1.x devices are connected to UHCI or OHCI hub, USB 2.0 devices to EHCI hub and USB 3.0 devices to xHCI hub), they use different resources, etc. In case of USB 3.0 they even use different wires!

Well, it's nice information to have, but how it's related to our Ndless woes? Well, the answer is simple: since USB 3.0 connector combines three interfaces in one connector it actually takes longer for it to detect the version of USB device is using! And that means that that Ndless have more time to do it's magic before USB hub will start hammering OS with interrrupts (USB 1.x and 2.0 are fully passive - they only generate activity on slave device when hub asks them to do something; USB 3.0 is different but here it's not very relevant because TI-Nspire does not support USB 3.0).

It means that while USB 3.0 per se should not affect Ndless in any way using USB 3.0 connector may help to make the procedure more robust. That's all. Now the only question is: just what is the troubling part of Ndless which makes it impossible to do any work in the presense of the interrupts and can we reduce this "window of vulnerability"? If we can do it then USB 2.0 or may be 1.x connectors should work too.

Offline ExtendeD

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Re: Ndless 1.7 for TI-Nspire
« Reply #259 on: November 25, 2010, 10:30:36 am »
Quote
just what is the troubling part of Ndless which makes it impossible to do any work in the presense of the interrupts and can we reduce this "window of vulnerability"?

I suppose the freeze happens before the code of Ndless is run, we probably won't be able to do much about it.
Since the issue seems to be specific to Levak's configuration, and since the workaround is as simple as unplugging the USB cable before the installation, I won't invest more effort than adding a warning to the ReadMe file.
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Offline Munchor

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Re: Ndless 1.7 for TI-Nspire
« Reply #260 on: November 25, 2010, 02:08:41 pm »
I have a doubt with ndless. When you install it, what exactly happens? Like, I can't find a video. But can you calculate, use it as normal.

And when you install, when you turn off anything happens?

Please explain me because I'm quite curious :)

Offline bsl

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Re: Ndless 1.7 for TI-Nspire
« Reply #261 on: November 25, 2010, 02:22:08 pm »
Got Ndless CAS1.7 running on the emulator
put in syscalls-light_cas-1.7.c:
Code: [Select]
          0X102A6CCC
        , 0X102A6EC0
        , 0X102a6ffc
        , 0X102A66C4
        , 0X102A481C
        , 0X102AC2DC
        , 0X102A74D4
        , 0X102A31D8
and append to syscalls_cas-1.7.c:
Code: [Select]
        , 0X102A49E8
        , 0x102a6ffc
You can use Levak's  values given on this thread.
Also, to get it to compile, the Makefile under libndls/
I changed the line:
Code: [Select]
from: AR = arm-none-eabi-ar
to:   AR = arm-elf-ar

Offline Levak

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Re: Ndless 1.7 for TI-Nspire
« Reply #262 on: November 25, 2010, 02:44:35 pm »
I have a doubt with ndless. When you install it, what exactly happens? Like, I can't find a video. But can you calculate, use it as normal.

And when you install, when you turn off anything happens?

Please explain me because I'm quite curious :)

You can do what ever you want, either work like before, or run asm progs.
Ndless will "just" by-pass the verification of a valid document and "add" the possibilitie of documents that begin with "PRG"
ExtendeD will surely explain better than me.
I do not get mad at people, I just want them to learn the way I learnt.
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Offline Munchor

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Re: Ndless 1.7 for TI-Nspire
« Reply #263 on: November 25, 2010, 02:45:50 pm »
You can do what ever you want, either work like before, or run asm progs.
Ndless will "just" by-pass the verification of a valid document and "add" the possibilitie of documents that begin with "PRG"
ExtendeD will surely explain better than me.

Hum. Without ndless I can run Asm progs?

Offline JosJuice

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Re: Ndless 1.7 for TI-Nspire
« Reply #264 on: November 25, 2010, 02:48:50 pm »
You can do what ever you want, either work like before, or run asm progs.
Ndless will "just" by-pass the verification of a valid document and "add" the possibilitie of documents that begin with "PRG"
ExtendeD will surely explain better than me.

Hum. Without ndless I can run Asm progs?
No.

Offline ExtendeD

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Re: Ndless 1.7 for TI-Nspire
« Reply #265 on: November 25, 2010, 04:27:30 pm »
Most fixes suggested have been pushed to the SVN repository.

put in syscalls-light_cas-1.7.c:

The syscalls-*.c files are actually automatically generated by tools/MakeSyscalls from the idc files, I forgot to rebuild them.

Quote
Also, to get it to compile, the Makefile under libndls/ I changed the line:

Fixed, thanks.

sleep() isn't setting the timer counter reset value back properly (reading 900D0000 gets its current value, not its reset value)

Do I need to hard-code the OS value? I can't see any port to read the reset value.
« Last Edit: November 25, 2010, 04:27:44 pm by ExtendeD »
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Offline calc84maniac

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Re: Ndless 1.7 for TI-Nspire
« Reply #266 on: November 25, 2010, 04:38:02 pm »
sleep() isn't setting the timer counter reset value back properly (reading 900D0000 gets its current value, not its reset value)

Do I need to hard-code the OS value? I can't see any port to read the reset value.
Yeah, there seems to be no way to retrieve the reset value from the hardware (aside from looping while polling the port to get which value comes after 0). Might be best to hard-code the OS value.
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Offline ExtendeD

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Re: Ndless 1.7 for TI-Nspire
« Reply #267 on: November 25, 2010, 04:54:02 pm »
Well, ok :(

I am now releasing binary versions of Ndless 1.7 as a beta release, to get quick feedback before an stable release
-> http://bytecode.fr/miscfiles/ti/nspire/ndless-1.7-beta

Please share the link but avoid distributing copies of the file, since it will be kept up-to-date with the HEAD of the SVN repository.
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Offline jbaem

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Re: Ndless 1.7 for TI-Nspire
« Reply #268 on: November 25, 2010, 05:12:52 pm »
wow, finally. thanks man!!!

btw: do u already know how long it's gonna take until the stable release??

Offline ExtendeD

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Re: Ndless 1.7 for TI-Nspire
« Reply #269 on: November 25, 2010, 05:16:19 pm »
I could promote this version to a stable release within a week, if I get enough positive comments on it.
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