rt-thread/bsp/gd32450z-eval/drivers/board.h

/*
 * File      : board.h
 * This file is part of RT-Thread RTOS
 * COPYRIGHT (C) 2009, RT-Thread Development Team
 *
 * The license and distribution terms for this file may be
 * found in the file LICENSE in this distribution or at
 * http://www.rt-thread.org/license/LICENSE
 *
 * Change Logs:
 * Date           Author       Notes
 * 2009-09-22     Bernard      add board.h to this bsp
 */

// <<< Use Configuration Wizard in Context Menu >>>
#ifndef __BOARD_H__
#define __BOARD_H__

#include <gd32f4xx.h>

#define EXT_SDRAM_BEGIN    (0xC0000000U) /* the begining address of external SDRAM */
#define EXT_SDRAM_END      (EXT_SDRAM_BEGIN + (32U * 1024 * 1024)) /* the end address of external SDRAM */

// <o> Internal SRAM memory size[Kbytes] <8-64>
//  <i>Default: 64
#ifdef __ICCARM__
// Use *.icf ram symbal, to avoid hardcode.
extern char __ICFEDIT_region_RAM_end__;
#define GD32_SRAM_END          &__ICFEDIT_region_RAM_end__
#else
#define GD32_SRAM_SIZE         128
#define GD32_SRAM_END          (0x20000000 + GD32_SRAM_SIZE * 1024)
#endif

#ifdef __CC_ARM
extern int Image$$RW_IRAM1$$ZI$$Limit;
#define HEAP_BEGIN    (&Image$$RW_IRAM1$$ZI$$Limit)
#elif __ICCARM__
#pragma section="HEAP"
#define HEAP_BEGIN    (__segment_end("HEAP"))
#else
extern int __bss_end;
#define HEAP_BEGIN    (&__bss_end)
#endif

#define HEAP_END          GD32_SRAM_END

#endif

//*** <<< end of configuration section >>>    ***