BSP

移植nuc131, 8kb内存，32kb存储出现内存分配情况

发布于 2019-05-12 19:00:05 浏览：1507 订阅该版

* 本帖最后由 hzijone 于 2019-5-12 19:09 编辑 *

![微信图片_20190512185426.png](/uploads/201905/12/185604p0uj0qbpt6qgbqwy.png)
起始地址从0x20001E30， 从函数接口来说是内存起始地址，也即前7KB多内存已经被用完。
导致在![微信图片_20190512185822.png](/uploads/201905/12/185834ny2smyu3ppk32e9y.png)  开辟2K内存失败， 因为总共只有8K内存。
想问如何减少RTTHREAD占用内存这么多的情况

这是rtconfig.h的配置文件
```/* RT-Thread config file */
#ifndef __RTTHREAD_CFG_H__
#define __RTTHREAD_CFG_H__

/* RT_NAME_MAX*/
#define RT_NAME_MAX	8

/* RT_ALIGN_SIZE*/
#define RT_ALIGN_SIZE	4

/* PRIORITY_MAX */
#define RT_THREAD_PRIORITY_MAX	32

/* Tick per Second */
#define RT_TICK_PER_SECOND	100

/* SECTION: RT_DEBUG */
/* Thread Debug */
#define RT_DEBUG
#define RT_THREAD_DEBUG

#define RT_USING_OVERFLOW_CHECK

/* Using Hook */
#define RT_USING_HOOK

/* Using Software Timer */
/* #define RT_USING_TIMER_SOFT */
#define RT_TIMER_THREAD_PRIO		4
#define RT_TIMER_THREAD_STACK_SIZE	512
#define RT_TIMER_TICK_PER_SECOND	10

/* SECTION: IPC */
/* Using Semaphore*/
#define RT_USING_SEMAPHORE

/* Using Mutex */
#define RT_USING_MUTEX

/* Using Event */
#define RT_USING_EVENT

/* Using MailBox */
#define RT_USING_MAILBOX

/* Using Message Queue */
#define RT_USING_MESSAGEQUEUE

/* SECTION: Memory Management */
/* Using Memory Pool Management*/
#define RT_USING_MEMPOOL

/* Using Dynamic Heap Management */
#define RT_USING_HEAP

/* Using Small MM */
#define RT_USING_SMALL_MEM

// <bool name="RT_USING_COMPONENTS_INIT" description="Using RT-Thread components initialization" default="true" />
#define RT_USING_COMPONENTS_INIT

/* SECTION: Device System */
/* Using Device System */
#define RT_USING_DEVICE
// <bool name="RT_USING_DEVICE_IPC" description="Using device communication" default="true" />
#define RT_USING_DEVICE_IPC
// <bool name="RT_USING_SERIAL" description="Using Serial" default="true" />
#define RT_USING_SERIAL

/* SECTION: Console options */
#define RT_USING_CONSOLE
/* the buffer size of console*/
#define RT_CONSOLEBUF_SIZE	        128
// <string name="RT_CONSOLE_DEVICE_NAME" description="The device name for console" default="uart1" />
#define RT_CONSOLE_DEVICE_NAME	    "uart1"

#define USEING_UART1

/* SECTION: finsh, a C-Express shell */
#define RT_USING_FINSH
/* Using symbol table */
#define FINSH_USING_SYMTAB
#define FINSH_USING_DESCRIPTION
/* Using finsh msh model */
#define FINSH_USING_MSH
#define FINSH_USING_MSH_ONLY

//#define RT_USING_PIN

//#define RT_USING_CAN

//#define RT_CAN_USING_BUS_HOOK

//#define RT_CAN_USING_HDR
/* SECTION: device filesystem */
/* #define RT_USING_DFS */

//#define RT_USING_DFS_ELMFAT
/* Reentrancy (thread safe) of the FatFs module.  */
// #define RT_DFS_ELM_REENTRANT
/* Number of volumes (logical drives) to be used. */
// #define RT_DFS_ELM_DRIVES			2
/* #define RT_DFS_ELM_USE_LFN			1 */
/* #define RT_DFS_ELM_CODE_PAGE			936 */
// #define RT_DFS_ELM_MAX_LFN			255
/* Maximum sector size to be handled. */
// #define RT_DFS_ELM_MAX_SECTOR_SIZE  512

/* the max number of mounted filesystem */
// #define DFS_FILESYSTEMS_MAX			2
/* the max number of opened files 		*/
// #define DFS_FD_MAX					4

// /* SECTION: lwip, a lighwight TCP/IP protocol stack */
// #define RT_USING_LWIP
// /* Enable ICMP protocol*/
// #define RT_LWIP_ICMP
// /* Enable UDP protocol*/
// #define RT_LWIP_UDP
// /* Enable TCP protocol*/
// #define RT_LWIP_TCP
// /* Enable DNS */
// #define RT_LWIP_DNS

// /* the number of simulatenously active TCP connections*/
// #define RT_LWIP_TCP_PCB_NUM	5

// /* Using DHCP */
// /* #define RT_LWIP_DHCP */

// /* ip address of target */
// #define RT_LWIP_IPADDR "192.168.1.37"

// /* gateway address of target */
// #define RT_LWIP_GWADDR  "192.168.1.1"

// /* mask address of target */
// #define RT_LWIP_MSKADDR  "255.255.255.0"

// /* tcp thread options */
// #define RT_LWIP_TCPTHREAD_PRIORITY		12
// #define RT_LWIP_TCPTHREAD_MBOX_SIZE		10
// #define RT_LWIP_TCPTHREAD_STACKSIZE		1024

// /* ethernet if thread options */
// #define RT_LWIP_ETHTHREAD_PRIORITY		15
// #define RT_LWIP_ETHTHREAD_MBOX_SIZE		10
// #define RT_LWIP_ETHTHREAD_STACKSIZE		512

// /* TCP sender buffer space */
// #define RT_LWIP_TCP_SND_BUF	8192
// /* TCP receive window. */
// #define RT_LWIP_TCP_WND		8192

/* SECTION: RT-Thread/GUI */
/* #define RT_USING_RTGUI */

/* name length of RTGUI object */
// #define RTGUI_NAME_MAX		12
/* support 16 weight font */
// #define RTGUI_USING_FONT16
/* support Chinese font */
// #define RTGUI_USING_FONTHZ
/* use DFS as file interface */
// #define RTGUI_USING_DFS_FILERW
/* use font file as Chinese font */
// #define RTGUI_USING_HZ_FILE
/* use Chinese bitmap font */
// #define RTGUI_USING_HZ_BMP
/* use small size in RTGUI */
// #define RTGUI_USING_SMALL_SIZE
/* use mouse cursor */
/* #define RTGUI_USING_MOUSE_CURSOR */
/* default font size in RTGUI */
// #define RTGUI_DEFAULT_FONT_SIZE	16

/* image support */
/* #define RTGUI_IMAGE_XPM */
/* #define RTGUI_IMAGE_BMP */

// <bool name="RT_USING_CMSIS_OS" description="Using CMSIS OS API" default="true" />
// #define RT_USING_CMSIS_OS
// <bool name="RT_USING_RTT_CMSIS" description="Using CMSIS in RTT" default="true" />
// #define RT_USING_RTT_CMSIS
// <bool name="RT_USING_BSP_CMSIS" description="Using CMSIS in BSP" default="true" />
// #define RT_USING_BSP_CMSIS

/* nanopb support */
/* #define RT_USING_NANOPB */

// #define RT_USING_CPU_FFS

//#define RT_USING_NEWLIB

#define RT_USING_USER_MAIN

// #define RT_USING_UART0
#define RT_USING_UART0

#endif
```