Forum TI-Planet.org

Is there any way to access to the nspire OS configuration? For example, language, unit angle, ...

The problem can (should?) be put the other way around, especially in your case where it's via a lua module.
What I mean is, TI already provides all these APIs to get (and set, in some cases) settings/config of a document, from Nspire Lua.

So, it would be easy to just call your own C function of your module that "receives" the lua value corresponding to what you want.

For instance you can look at math.getEvalSettings() (Returns a table of tables with the document settings that are currently being used by math.eval. These settings are equivalent to the current document settings unless a call has been made to setEvalSettings). Cf the page https://wiki.inspired-lua.org/math.setEvalSettings that has more info too.
For the language, there is locale.name()

Adrien, the "new" KhiCAS UI (ported from the Numworks UI) does not use lua anymore : the idea is to have the same codebase for several calculator brands (with a few ifdef of course), at least for the Numworks and the TI.
That's why it would be nice to get the language from a C call, otherwise I will have to ask the user English or French when he run KhiCAS for the first time, or set it to French and leave the user press ctrl s and select English (current behavior).

OK, if not from a Lua module anymore (I thought for graphics etc. you just "drew on screen" with a backup buffer etc.), then the Lua stuff doesn't apply of course
And it's more complicated now. The ndless sdk would have to impement that in an os-specific way, which isn't done right now afaik. No syscalls for it I think.
I'll let Vogtinator know about this topic.

Edit: getLangInfo() and getMode() from Basic would work -> https://www.manualslib.com/manual/37632 ... =48#manual ... if that's callable from ndless ?

You could parse /phoenix/syst/settings/current.zip yourself, that's where the settings are stored (AFAICT).
It might be enough to use some undocumented syscalls to poke the calc engine, though I don't know how well that works and it might break in the future when the OS changes ABI.

Code: Select all

#include <os.h>
#include <syscall.h>
...

        char16_t input_w[] = u"nsolve(x-42=0,x)";
        void *math_expr = nullptr;
        int str_offset = 0;

        int error = TI_MS_evaluateExpr_ACBER(NULL, NULL, (const uint16_t*)input_w, &math_expr, &str_offset);
        if(error)
                return 0;

        char16_t *output_w;
        error = TI_MS_MathExprToStr(math_expr, NULL, (uint16_t**)&output_w);
        syscall<e_free, void>(math_expr); // Should be TI_MS_DeleteMathExpr

        if(error)
                return 0;

        // Do something with output_w, it's u"42." here

        syscall<e_free, void>(output_w);

Thanks, it just works!

Is there any way to set the RTC? I tried

Code: Select all

   unsigned NSPIRE_RTC_ADDR=0x90090000;
   * (volatile unsigned *) NSPIRE_RTC_ADDR = (h*60+m)*60;


but it does not work.

You have to write to 0x90090008, see https://hackspire.org/index.php?title=M ... _.28RTC.29

Indeed!