48 lines
995 B
C
48 lines
995 B
C
/*
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* Copyright (c) 2006-2018, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2015-08-03 xiaonong The first version for STM32F7
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* 2017-08-25 LongfeiMa transplantation for stm32h7xx
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*/
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#include "sram.h"
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#include "board.h"
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#include <rtthread.h>
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#ifdef RT_USING_EXT_SDRAM
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struct rt_memheap system_heap;
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void sram_init(void)
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{
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/* initialize the built-in SRAM as a memory heap */
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rt_memheap_init(&system_heap,
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"system",
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(void *)HEAP_BEGIN,
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(rt_uint32_t)HEAP_END - (rt_uint32_t)HEAP_BEGIN);
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}
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void *sram_malloc(unsigned long size)
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{
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return rt_memheap_alloc(&system_heap, size);
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}
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RTM_EXPORT(sram_malloc);
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void sram_free(void *ptr)
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{
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rt_memheap_free(ptr);
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}
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RTM_EXPORT(sram_free);
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void *sram_realloc(void *ptr, unsigned long size)
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{
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return rt_memheap_realloc(&system_heap, ptr, size);
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}
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RTM_EXPORT(sram_realloc);
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#endif
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