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/*
* Copyright (c) 2006-2025, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-08-20 BruceOu first implementation
* 2024-03-19 Evlers remove the include of drv_usart.h
*/
#ifndef __BOARD_H__
#define __BOARD_H__
#include "gd32f4xx.h"
#include "drv_gpio.h"
#include "gd32f4xx_exti.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] <8-256> */
/* <i>Default: 192 */
#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 192
#define GD32_SRAM_END (0x20000000 + GD32_SRAM_SIZE * 1024)
#endif
#ifdef __ARMCC_VERSION
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
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