MicroPython Forum (Archive)

My int's are 32 bit and long long's 64 bit, so thank you very much !

Hi, After creating an objint with mp_obj_new_int_from_ll, is there a way to get the long long out of there afterwards? At the moment I am only seeing the mp_int_t mp_obj_get_int(mp_const_obj_t arg) function, but that returns an mp_int_t which is not suppose to have the long long size. Is mp_obj_int_...

No mostly thinking out loud, sorry.

But now I was looking for a way to purge the learned qstrings from
mp_state_ctx.vm.last_pool
to start 'fresh'.

As far as I can see there is not (yet) a function to do that ? So i would have to walk through the pool list myself to clear each pool ?

What do you mean by your last sentence? I don't currently have that situation (yet) but i can imagine having a situation where the method you need call is a string parameter (eg maybe it arrives from a remote server as a command or something ). In that case it will be hard for the server to know th...

Q strings can never be deleted so they will take up increasing amount of ram if you keep on introducing new strings Yes, but in this case they are not new strings, they are method names that already exist as a qstring. If i recall correctly qstr_from_str will first search if the string you pass alr...

Ah great ! That looks promising indeed ! Thanks!

('Also you have to use qstrings not strings.' -> Ok, so qstr_from_str/qstr_from_strn is my friend )

Hi, I am looking for a way get 'PyObject_CallMethod' like functionality in micropython. That is, I have an mp_obj_t and a method name (as a string), and now I would like to execute that function (or fail if the mp_obj_t does not support that particular method) (*). Looking at the callstack coming ou...

I don't really have insight in which one would be better (empty string or NULL), but i am just wondering about the usage of the hard coded 0/1 value versus the 'named' values MP_QSTR_NULL/MP_QSTR_ Reason being that i need to pass an empty string object myself, so then I remembered this fix and I sta...

Additional related question: I just saw that the fix was modified again with the qstr src_name = 0/*MP_QSTR_*/; vs qstr src_name = 1/*MP_QSTR_*/; Which begs the question, why the direct hard coded value and not qstr src_name = MP_QSTR_; I just tried and it compiles and runs fine resolving to the cor...

I did it for an stm32f429 (cortext m4) so I cant really help with the Atmel things, but some ramblings on things I encountered.... You can look at the cc3200 port for integration with freertos. I would not first try to do it native , and then freertos as you seem to suggest. Go for freertos integrat...