/* * Copyright (c) 2006-2024, 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 */ // Internal SRAM memory size[Kbytes] <8-64> // 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 __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