Search found 629 matches
- Sat May 25, 2019 6:49 pm
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
That’s a difficult thing to replicate because it totally depends on how your compiler generates the binary code aka assembly. I’m not surprised that you’re having a hard time creating that condition because in most(all?) cases, the registers will be flushed to memory. But I wouldn’t rely on this oth...
- Tue May 21, 2019 3:32 am
- Forum: Development of MicroPython
- Topic: Find out how much RAM will be used by MicroPython at compile the runtime
- Replies: 5
- Views: 4852
Re: Find out how much RAM will be used by MicroPython at compile the runtime
You cannot discover the RAM usage statically like with flash usage. RAM usage depends on the code ie how much memory it Allocates. But in general you can’t deduce that info just by searching for “malloc” within the code. The number of mallocs could be dynamic, based on an input. There could be compl...
- Tue May 21, 2019 3:26 am
- Forum: Development of MicroPython
- Topic: Find out how much RAM will be used by MicroPython at compile the runtime
- Replies: 5
- Views: 4852
Re: Find out how much RAM will be used by MicroPython at compile the runtime
The flash usage is trivial to discover: all the information is contained in the elf.
I think it’s easiest to transform the elf into a pure binary file and then take note of the size of said binary file.
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I think it’s easiest to transform the elf into a pure binary file and then take note of the size of said binary file.
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- Mon May 20, 2019 12:43 am
- Forum: Development of MicroPython
- Topic: Find out how much RAM will be used by MicroPython at compile the runtime
- Replies: 5
- Views: 4852
Re: Find out how much RAM will be used by MicroPython at compile the runtime
Do you mean at compile time of the C firmware?
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- Sun May 19, 2019 5:08 pm
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
Yes it’s important. If you don’t you could delete an object erroneously.
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- Thu May 02, 2019 2:14 am
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
Thank you. I understand and agree with what you are saying. I am just interested in some more details. So, there is my port and there is, for example, esp8266 port. My port has all gc initialization literally commented out: mpconfigport.h: 35 // #define MICROPY_ENABLE_GC (1) main.c: 168 // TODO: gc...
- Sun Apr 28, 2019 3:47 pm
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
OK, to try this out I need to also enable gc. So my question is: what does micropython gc actually do? What is the difference between micropython running with gc and without it? gc frees RAM once an object goes out of scope or is deleted. It depends on your exact code but generally Without gc you’l...
- Sun Apr 28, 2019 3:01 pm
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
What kind of mechanism finalizes objects (i.e. closes files on reference count = 0) in micropython? Is it GC? What do I need implement for it? There’s no reference counting in micropython unless you implement it yourself. You have to enable the macro MICROPY_ENABLE_FINALISER. Also for your object, ...
- Thu Apr 11, 2019 11:22 pm
- Forum: Development of MicroPython
- Topic: Custom port A9G module: help wanted
- Replies: 38
- Views: 30610
Re: Custom port A9G module: help wanted
That code by itself should compile.
Something in the .h is causing the error.
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Something in the .h is causing the error.
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- Sat Apr 06, 2019 2:23 am
- Forum: Other Boards
- Topic: [TM4C123] how to disable debugging info in REPL
- Replies: 4
- Views: 3542
Re: [TM4C123] gc info disabled in gccollect.c but still displaying in repl?
I gave you the code that does this and the macro you have to switch off.
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