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https://github.com/licsber/micropython.git
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469c623bb8
The 16k FreeRTOS heap originally had all TCBs and stacks dynamically allocated within it (plus semaphores and some other things). Now that xTaskCreateStatic is used instead of xTaskCreate, the TCBs and stacks are allocated statically and no longer use any of the FreeRTOS heap. Therefore, the FreeRTOS stack can be shrunk by the amount that has been made static. Furthermore, the TCBs and stack that are now static should be placed in the .rtos_heaps section of RAM because this RAM is treated specially by the bootloader (the bootloader executes from the first 16k of RAM and loads the firmware into the section starting after the 16k). After this patch the FreeRTOS heap (ucHeap) is 7200 bytes. The memory available for the MicroPython heap is 54936 bytes (including GC overhead).
116 lines
4.2 KiB
C
116 lines
4.2 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2015 Daniel Campora
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <string.h>
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#include <ctype.h>
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#include "py/mpconfig.h"
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#include "py/mphal.h"
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#include "mptask.h"
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#include "simplelink.h"
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#include "pybwdt.h"
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#include "debug.h"
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#include "antenna.h"
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#include "mperror.h"
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#include "task.h"
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/******************************************************************************
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DECLARE PRIVATE CONSTANTS
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******************************************************************************/
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/******************************************************************************
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DECLARE PRIVATE FUNCTIONS
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******************************************************************************/
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/******************************************************************************
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DECLARE PRIVATE DATA
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******************************************************************************/
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// This is the static memory (TCB and stack) for the idle task
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static StaticTask_t xIdleTaskTCB __attribute__ ((section (".rtos_heap")));
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static StackType_t uxIdleTaskStack[configMINIMAL_STACK_SIZE] __attribute__ ((section (".rtos_heap"))) __attribute__((aligned (8)));
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/******************************************************************************
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DECLARE PUBLIC DATA
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******************************************************************************/
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#ifdef DEBUG
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OsiTaskHandle mpTaskHandle;
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#endif
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// This is the FreeRTOS heap, defined here so we can put it in a special segment
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uint8_t ucHeap[ configTOTAL_HEAP_SIZE ] __attribute__ ((section (".rtos_heap"))) __attribute__((aligned (8)));
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// This is the static memory (TCB and stack) for the main MicroPython task
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StaticTask_t mpTaskTCB __attribute__ ((section (".rtos_heap")));
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StackType_t mpTaskStack[MICROPY_TASK_STACK_LEN] __attribute__ ((section (".rtos_heap"))) __attribute__((aligned (8)));
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/******************************************************************************
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DEFINE PUBLIC FUNCTIONS
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******************************************************************************/
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__attribute__ ((section (".boot")))
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int main (void) {
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// Initialize the clocks and the interrupt system
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HAL_SystemInit();
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#if MICROPY_HW_ANTENNA_DIVERSITY
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// configure the antenna selection pins
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antenna_init0();
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#endif
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// Init the watchdog
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pybwdt_init0();
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#ifndef DEBUG
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OsiTaskHandle mpTaskHandle;
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#endif
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mpTaskHandle = xTaskCreateStatic(TASK_Micropython, "MicroPy",
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MICROPY_TASK_STACK_LEN, NULL, MICROPY_TASK_PRIORITY, mpTaskStack, &mpTaskTCB);
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ASSERT(mpTaskHandle != NULL);
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osi_start();
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for ( ; ; );
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}
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void stoupper (char *str) {
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while (str && *str != '\0') {
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*str = (char)toupper((int)(*str));
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str++;
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}
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}
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// We need this when configSUPPORT_STATIC_ALLOCATION is enabled
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void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer,
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StackType_t **ppxIdleTaskStackBuffer,
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uint32_t *pulIdleTaskStackSize ) {
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*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
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*ppxIdleTaskStackBuffer = uxIdleTaskStack;
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*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
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}
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