Search found 12 matches
- Fri Jun 15, 2018 6:39 am
- Forum: General Discussion and Questions
- Topic: How to free memory after unused imports?
- Replies: 8
- Views: 7084
Re: How to free memory after unused imports?
I have had the same experience as Peter. I cleared the sys.modules and delteted everything from the globals and still couldn't free up the whole memory. from gc import collect # @UnresolvedImport from sys import modules, path path.clear() path.insert(0, '') path.insert(0, '/sd') modules.clear() coll...
- Fri Jun 01, 2018 6:39 am
- Forum: General Discussion and Questions
- Topic: Freezing Dictonary in Flash
- Replies: 5
- Views: 3738
Re: Freezing Dictonary in Flash
I see. At the moment I don't have that much data, so implementing it as a C module is problaby not worth the effort. I am basically attaching strings to error codes, so freezing the strings in the firmware and then building the dictonary in the source code works for now. If I am reaching the limits ...
- Thu May 31, 2018 8:26 am
- Forum: General Discussion and Questions
- Topic: Freezing Dictonary in Flash
- Replies: 5
- Views: 3738
- Thu May 31, 2018 7:48 am
- Forum: General Discussion and Questions
- Topic: Freezing Dictonary in Flash
- Replies: 5
- Views: 3738
Freezing Dictonary in Flash
Hi, I understand that freezing strings in the flash saves RAM in micropython. A source file containing MY_STRING = 'this is a long string, but I want it to be only a machine word in the RAM of the actual devcie' which is frozen into the falsh and then imported saves RAM. Is is also possible to freez...
- Tue Apr 03, 2018 6:27 am
- Forum: General Discussion and Questions
- Topic: STM32F429 Flash Memory Size
- Replies: 2
- Views: 2778
Re: STM32F429 Flash Memory Size
The filesystem is created by micropython on startup. The file flashbdev.c is defines at which adress and how many blocks are used for the file system. (Previously it was located in the storage.c) #elif defined(STM32F429xx) #define CACHE_MEM_START_ADDR (0x10000000) // CCM data RAM, 64k #define FLASH_...
- Fri Mar 09, 2018 8:05 am
- Forum: General Discussion and Questions
- Topic: Btree Module on stm32
- Replies: 4
- Views: 4149
Re: Btree Module on stm32
Hi, good advice, but I didn't get to compile the firmware for an stm32 port with the BTREE module enabled. When I add the define for BTREE in the mpconfigboard.h, I get the following error: build-mcCPU_F7V01/py/objmodule.o:(.rodata.mp_builtin_module_table+0xc4): undefined reference to `mp_module_btr...
- Thu Mar 08, 2018 11:09 am
- Forum: General Discussion and Questions
- Topic: Btree Module on stm32
- Replies: 4
- Views: 4149
Btree Module on stm32
Hi, I tried to implement the Btree module in a custom board with an stm32F765. When in implement the line "#define MICROPY_PY_BTREE (1)" into the mpconfigboard.h, I get an error when creating the firmware: "In file included from ../../py/objmodule.h:29:0, from ../../py/objmodule.c:30: ../../py/objmo...
- Fri Nov 10, 2017 7:04 am
- Forum: General Discussion and Questions
- Topic: micropython.schedule inside class
- Replies: 6
- Views: 6094
Re: micropython.schedule inside class
Yes, Dave you are right again ! class CanInterface(CAN): # ------------------------------------------------------------------ def __init__(self, itf): self.can = CAN(itf) self.init_can_bus() self.bound_method = self.test_func # create method in constructor # -----------------------------------------...
- Thu Nov 09, 2017 5:51 pm
- Forum: General Discussion and Questions
- Topic: socket problem
- Replies: 4
- Views: 6227
Re: socket problem
I am guessing here but maybe try a socket.close() on the socket instance when you are done?
In your case s.close()
Or try garbage collecting manually by using gc.collect(), or both...
In your case s.close()
Or try garbage collecting manually by using gc.collect(), or both...
- Thu Nov 09, 2017 12:35 pm
- Forum: General Discussion and Questions
- Topic: micropython.schedule inside class
- Replies: 6
- Views: 6094
micropython.schedule inside class
Hi everyone, catching an CAN bus interrupt in a class and calling a scheduled function leads to a MemoryError. I create a class which inherits from pyb.CAN. I initialize Can, and attach a callback function to it. In the callback function I schedule antoher function uising micropython.schedule(). Whe...