📄 cstartup_sam7.lst
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##############################################################################
# #
# IAR ARM ANSI C/C++ Compiler V4.40A/W32 EVALUATION 18/Jun/2007 15:11:49 #
# Copyright 1999-2005 IAR Systems. All rights reserved. #
# #
# Cpu mode = interwork #
# Endian = little #
# Stack alignment = 4 #
# Source file = E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\SrcIAR\Cstar #
# tup_SAM7.c #
# Command line = E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\SrcIAR\Cstar #
# tup_SAM7.c -lC E:\课题\分布式电磁频谱侦察监视系统\AR #
# M学习资料\实例\IAR实验代码\实验一\AT91SAM7X256串口实 #
# 验\FLASH_Debug\List\ -o E:\课题\分布式电磁频谱侦察监 #
# 视系统\ARM学习资料\实例\IAR实验代码\实验一\AT91SAM7X #
# 256串口实验\FLASH_Debug\Obj\ -z9 --debug --cpu_mode #
# thumb --endian little --cpu ARM7TDMI --stack_align #
# 4 --interwork -e --fpu None --dlib_config #
# "C:\Program Files\IAR Systems\Embedded Workbench #
# 4.0 Evaluation\ARM\LIB\dl4tptinl8n.h" -I #
# E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\srcIAR\ -I #
# E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\..\src\ -I #
# E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\..\..\ -I #
# "C:\Program Files\IAR Systems\Embedded Workbench #
# 4.0 Evaluation\ARM\INC\" #
# List file = E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\FLASH_Debug\ #
# List\Cstartup_SAM7.lst #
# Object file = E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\ #
# IAR实验代码\实验一\AT91SAM7X256串口实验\FLASH_Debug\ #
# Obj\Cstartup_SAM7.r79 #
# #
# #
##############################################################################
E:\课题\分布式电磁频谱侦察监视系统\ARM学习资料\实例\IAR实验代码\实验一\AT91SAM7X256串口实验\SrcIAR\Cstartup_SAM7.c
1 // ----------------------------------------------------------------------------
2 // ATMEL Microcontroller Software Support - ROUSSET -
3 // ----------------------------------------------------------------------------
4 // DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
5 // IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
6 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
7 // DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
8 // INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
9 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
10 // OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
11 // LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
12 // NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
13 // EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
14 // ----------------------------------------------------------------------------
15 // File Name : Cstartup_SAM7.c
16 // Object : Low level initialisations written in C for IAR Tools
17 // Creation : FBr 01-Sep-2005
18 // 1.0 08-Sep-2005 JPP : Suppress Reset
19 // ----------------------------------------------------------------------------
20
21 #include "project.h"
22
23 //*----------------------------------------------------------------------------
24 // The following functions must be write in ARM mode
25 // this function called directly by exception vector
26 //*----------------------------------------------------------------------------
27 extern void AT91F_Spurious_handler(void);
28 extern void AT91F_Default_IRQ_handler(void);
29 extern void AT91F_Default_FIQ_handler(void);
30
31 //*----------------------------------------------------------------------------
32 //* \fn AT91F_LowLevelInit
33 //* \brief This function performs very low level HW initialization
34 //* this function can use a Stack, depending the compilation
35 //* optimization mode
36 //*----------------------------------------------------------------------------
\ In segment CODE, align 4, keep-with-next
37 void AT91F_LowLevelInit(void)
38 {
\ AT91F_LowLevelInit:
\ 00000000 10B5 PUSH {R4,LR}
39 int i;
40
41 /////////////////////////////////////////////////////////////////////////////////////////////////////
42 // EFC Init
43 /////////////////////////////////////////////////////////////////////////////////////////////////////
44 AT91C_BASE_MC->MC_FMR = AT91C_MC_FWS_1FWS; // 1 Wait State necessary to work at 48MHz
\ 00000002 9F20 MOVS R0,#+159
\ 00000004 C043 MVNS R0,R0 ;; #-160
\ 00000006 8021 MOVS R1,#+128
\ 00000008 4900 LSLS R1,R1,#+1 ;; #+256
\ 0000000A 0160 STR R1,[R0, #+0]
45
46 /////////////////////////////////////////////////////////////////////////////////////////////////////
47 // Init PMC Step 1. Enable Main Oscillator
48 // Main Oscillator startup time is board specific:
49 // Main Oscillator Startup Time worst case (3MHz) corresponds to 15ms (0x40 for AT91C_CKGR_OSCOUNT field)
50 /////////////////////////////////////////////////////////////////////////////////////////////////////
51 AT91C_BASE_PMC->PMC_MOR = (( AT91C_CKGR_OSCOUNT & (0x40 <<8) | AT91C_CKGR_MOSCEN ));
\ 0000000C 1948 LDR R0,??AT91F_LowLevelInit_0 ;; 0xfffffc20
\ 0000000E 1A49 LDR R1,??AT91F_LowLevelInit_0+0x4 ;; 0x4001
\ 00000010 0160 STR R1,[R0, #+0]
\ 00000012 1A48 LDR R0,??AT91F_LowLevelInit_0+0x8 ;; 0xfffffc68
52 // Wait Main Oscillator stabilization
53 while(!(AT91C_BASE_PMC->PMC_SR & AT91C_PMC_MOSCS));
\ ??AT91F_LowLevelInit_1:
\ 00000014 0168 LDR R1,[R0, #+0]
\ 00000016 C907 LSLS R1,R1,#+31
\ 00000018 FCD5 BPL ??AT91F_LowLevelInit_1
54
55 /////////////////////////////////////////////////////////////////////////////////////////////////////
56 // Init PMC Step 2.
57 // Set PLL to 96MHz (96,109MHz) and UDP Clock to 48MHz
58 // PLL Startup time depends on PLL RC filter: worst case is choosen
59 // UDP Clock (48,058MHz) is compliant with the Universal Serial Bus Specification (+/- 0.25% for full speed)
60 /////////////////////////////////////////////////////////////////////////////////////////////////////
61 AT91C_BASE_PMC->PMC_PLLR = AT91C_CKGR_USBDIV_1 | AT91C_CKGR_OUT_0 | AT91C_CKGR_PLLCOUNT |
62 (AT91C_CKGR_MUL & (72 << 16)) | (AT91C_CKGR_DIV & 14);
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