📄 board_lowlevel.lst
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###############################################################################
# #
# 25/May/2009 02:53:22 #
# IAR ANSI C/C++ Compiler V5.20.0.20892/W32 EVALUATION for ARM #
# Copyright 1999-2008 IAR Systems AB. #
# #
# Cpu mode = arm #
# Endian = little #
# Source file = F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91lib\boards\at91sam7x-ek\board_lowlevel. #
# c #
# Command line = F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91lib\boards\at91sam7x-ek\board_lowlevel. #
# c -D at91sam7x256 -D flash -D TRACE_LEVEL=4 -lC #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\at #
# 91sam7x256_flash\List\ --remarks --diag_suppress #
# Pe826,Pe1375 -o F:\Diplomovka\IARprojects\Diplomovka\25. #
# 4.2009\getting-started-project-at91sam7x-ek-iar\getting- #
# started-project-at91sam7x-ek\at91sam7x-ek\getting-starte #
# d-project\ewp\at91sam7x256_flash\Obj\ --no_cse #
# --no_unroll --no_inline --no_code_motion --no_tbaa #
# --no_clustering --no_scheduling --debug --endian=little #
# --cpu=ARM7TDMI -e --fpu=None --dlib_config "C:\Program #
# Files (x86)\IAR Systems\Embedded Workbench 5.0 #
# Evaluation\ARM\INC\DLib_Config_Full.h" -I #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\.. #
# \..\..\at91lib/peripherals\ -I #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\.. #
# \..\..\at91lib\ -I F:\Diplomovka\IARprojects\Diplomovka\ #
# 25.4.2009\getting-started-project-at91sam7x-ek-iar\getti #
# ng-started-project-at91sam7x-ek\at91sam7x-ek\getting-sta #
# rted-project\ewp\..\..\..\at91lib\memories\sdmmc\ -I #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\.. #
# \..\..\at91lib/components\ -I #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\.. #
# \..\..\at91lib/boards/at91sam7x-ek\ -I #
# F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\.. #
# \..\..\external_libs/crc\ -I "C:\Program Files #
# (x86)\IAR Systems\Embedded Workbench 5.0 #
# Evaluation\ARM\INC\" --interwork --cpu_mode arm -Oh #
# List file = F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\at #
# 91sam7x256_flash\List\board_lowlevel.lst #
# Object file = F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-s #
# tarted-project-at91sam7x-ek-iar\getting-started-project- #
# at91sam7x-ek\at91sam7x-ek\getting-started-project\ewp\at #
# 91sam7x256_flash\Obj\board_lowlevel.o #
# #
# #
###############################################################################
F:\Diplomovka\IARprojects\Diplomovka\25.4.2009\getting-started-project-at91sam7x-ek-iar\getting-started-project-at91sam7x-ek\at91lib\boards\at91sam7x-ek\board_lowlevel.c
1 /* ----------------------------------------------------------------------------
2 * ATMEL Microcontroller Software Support
3 * ----------------------------------------------------------------------------
4 * Copyright (c) 2008, Atmel Corporation
5 *
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
11 * - Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the disclaimer below.
13 *
14 * Atmel's name may not be used to endorse or promote products derived from
15 * this software without specific prior written permission.
16 *
17 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
20 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
23 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
24 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
25 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
26 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 * ----------------------------------------------------------------------------
28 */
29
30 //------------------------------------------------------------------------------
31 /// \unit
32 ///
33 /// !Purpose
34 ///
35 /// Provides the low-level initialization function that gets called on chip
36 /// startup.
37 ///
38 /// !Usage
39 ///
40 /// LowLevelInit() is called in #board_cstartup.S#.
41 //------------------------------------------------------------------------------
42
43 //------------------------------------------------------------------------------
44 // Headers
45 //------------------------------------------------------------------------------
46
47 #include "board.h"
48 #include "board_memories.h"
49 #include <pmc/pmc.h>
50
51 //------------------------------------------------------------------------------
52 // Internal definitions
53 //------------------------------------------------------------------------------
54 // Startup time of main oscillator (in number of slow clock ticks).
55 #define BOARD_OSCOUNT (AT91C_CKGR_OSCOUNT & (0x40 << 8))
56
57 // USB PLL divisor value to obtain a 48MHz clock.
58 #define BOARD_USBDIV AT91C_CKGR_USBDIV_1
59
60 // PLL frequency range.
61 #define BOARD_CKGR_PLL AT91C_CKGR_OUT_0
62
63 // PLL startup time (in number of slow clock ticks).
64 #define BOARD_PLLCOUNT (16 << 8)
65
66 // PLL MUL value.
67 #define BOARD_MUL (AT91C_CKGR_MUL & (72 << 16))
68
69 // PLL DIV value.
70 #define BOARD_DIV (AT91C_CKGR_DIV & 14)
71
72 // Master clock prescaler value.
73 #define BOARD_PRESCALER AT91C_PMC_PRES_CLK_2
74
75 //------------------------------------------------------------------------------
76 // Internal functions
77 //------------------------------------------------------------------------------
78 //------------------------------------------------------------------------------
79 /// Default spurious interrupt handler. Infinite loop.
80 //------------------------------------------------------------------------------
\ In section .text, align 4, keep-with-next
81 void defaultSpuriousHandler( void )
82 {
83 while (1);
\ defaultSpuriousHandler:
\ ??defaultSpuriousHandler_0:
\ 00000000 FEFFFFEA B ??defaultSpuriousHandler_0
84 }
85
86 //------------------------------------------------------------------------------
87 /// Default handler for fast interrupt requests. Infinite loop.
88 //------------------------------------------------------------------------------
\ In section .text, align 4, keep-with-next
89 void defaultFiqHandler( void )
90 {
91 while (1);
\ defaultFiqHandler:
\ ??defaultFiqHandler_0:
\ 00000000 FEFFFFEA B ??defaultFiqHandler_0
92 }
93
94 //------------------------------------------------------------------------------
95 /// Default handler for standard interrupt requests. Infinite loop.
96 //------------------------------------------------------------------------------
\ In section .text, align 4, keep-with-next
97 void defaultIrqHandler( void )
98 {
99 while (1);
\ defaultIrqHandler:
\ ??defaultIrqHandler_0:
\ 00000000 FEFFFFEA B ??defaultIrqHandler_0
100 }
101
102 //------------------------------------------------------------------------------
103 // Exported functions
104 //------------------------------------------------------------------------------
105
106 //------------------------------------------------------------------------------
107 /// Performs the low-level initialization of the chip. This includes EFC, master
108 /// clock, AIC & watchdog configuration, as well as memory remapping.
109 //------------------------------------------------------------------------------
\ In section .text, align 4, keep-with-next
110 void LowLevelInit( void )
111 {
\ LowLevelInit:
\ 00000000 00502DE9 PUSH {R12,LR}
112 unsigned char i;
113
114 /* Set flash wait states in the EFC
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