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support GCC compiler for LM3S platform 

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@236 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
qiuyiuestc 2009-12-26 14:47:27 +00:00
parent 017d2b7662
commit 4de2f13fcd
3 changed files with 16 additions and 42 deletions
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5
bsp/lm3s/board.h
View File

@ -15,6 +15,11 @@
#ifndef __BOARD_H__ #ifndef __BOARD_H__
#define __BOARD_H__ #define __BOARD_H__
// <o> Internal SRAM memory size[Kbytes] <8-64>
// <i>Default: 64
#define LM3S_SRAM_SIZE 64
#define LM3S_SRAM_END (0x20000000 + LM3S_SRAM_SIZE * 1024)
void rt_hw_board_led_on(int n); void rt_hw_board_led_on(int n);
void rt_hw_board_led_off(int n); void rt_hw_board_led_off(int n);
void rt_hw_board_init(void); void rt_hw_board_init(void);

10
bsp/lm3s/startup.c
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@ -19,9 +19,9 @@
/** /**
* @addtogroup LM3S * @addtogroup LM3S
*/ */
extern void rt_hw_serial_init(void); extern void rt_hw_serial_init(void);
/*@{*/ /*@{*/
#ifdef RT_USING_FINSH #ifdef RT_USING_FINSH
@ -82,12 +82,12 @@ void rtthread_startup(void)
#ifdef RT_USING_HEAP #ifdef RT_USING_HEAP
#ifdef __CC_ARM #ifdef __CC_ARM
rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x20010000); rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)LM3S_SRAM_END);
#elif __ICCARM__ #elif __ICCARM__
rt_system_heap_init(__segment_end("HEAP"), (void*)0x20010000); rt_system_heap_init(__segment_end("HEAP"), (void*)LM3S_SRAM_END);
#else #else
/* init memory system */ /* init memory system */
rt_system_heap_init((void*)&__bss_end, (void*)0x20010000); rt_system_heap_init((void*)&__bss_end, (void*)LM3S_SRAM_END);
#endif #endif
#endif #endif

43
libcpu/arm/lm3s/start_gcc.s
View File

@ -1,32 +1,3 @@
/**
******************************************************************************
* @file startup_stm32f10x_hd.s
* @author MCD Application Team
* @version V3.1.2
* @date 09/28/2009
* @brief STM32F10x High Density Devices vector table for RIDE7 toolchain.
* This module performs:
* - Set the initial SP
* - Set the initial PC == Reset_Handler,
* - Set the vector table entries with the exceptions ISR address,
* - Configure external SRAM mounted on STM3210E-EVAL board
* to be used as data memory (optional, to be enabled by user)
* - Branches to main in the C library (which eventually
* calls main()).
* After Reset the Cortex-M3 processor is in Thread mode,
* priority is Privileged, and the Stack is set to Main.
******************************************************************************
* @copy
*
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
* TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
* DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*
* <h2><center>&copy; COPYRIGHT 2009 STMicroelectronics</center></h2>
*/
.section .bss.init .section .bss.init
.equ Stack_Size, 0x00000200 .equ Stack_Size, 0x00000200
.space Stack_Size .space Stack_Size
@ -52,8 +23,6 @@ defined in linker script */
/* end address for the .bss section. defined in linker script */ /* end address for the .bss section. defined in linker script */
.word _ebss .word _ebss
// .equ Initial_spTop, 0x20000200
.equ BootRAM, 0xF1E0F85F
/** /**
* @brief This is the code that gets called when the processor first * @brief This is the code that gets called when the processor first
* starts execution following a reset event. Only the absolutely * starts execution following a reset event. Only the absolutely
@ -131,17 +100,17 @@ Infinite_Loop:
g_pfnVectors: g_pfnVectors:
.word Initial_spTop .word Initial_spTop
.word Reset_Handler .word Reset_Handler
.word Default_Handler //NMI_Handler .word Default_Handler //NMI_Handler
.word rt_hw_hard_fault .word rt_hw_hard_fault
.word Default_Handler //MemManage_Handler .word Default_Handler //MemManage_Handler
.word Default_Handler //BusFault_Handler .word Default_Handler //BusFault_Handler
.word Default_Handler //UsageFault_Handler .word Default_Handler //UsageFault_Handler
.word 0 .word 0
.word 0 .word 0
.word 0 .word 0
.word 0 .word 0
.word Default_Handler //SVC_Handler .word Default_Handler //SVC_Handler
.word Default_Handler //DebugMon_Handler .word Default_Handler //DebugMon_Handler
.word 0 .word 0
.word rt_hw_pend_sv .word rt_hw_pend_sv
.word rt_hw_timer_handler .word rt_hw_timer_handler