OpenCores
URL https://opencores.org/ocsvn/openmsp430/openmsp430/trunk

Subversion Repositories openmsp430

[/] [openmsp430/] [trunk/] [core/] [sim/] [rtl_sim/] [src/] [wdt_clkmux.s43] - Blame information for rev 19

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 2 olivier.gi
/*===========================================================================*/
2
/* Copyright (C) 2001 Authors                                                */
3
/*                                                                           */
4
/* This source file may be used and distributed without restriction provided */
5
/* that this copyright statement is not removed from the file and that any   */
6
/* derivative work contains the original copyright notice and the associated */
7
/* disclaimer.                                                               */
8
/*                                                                           */
9
/* This source file is free software; you can redistribute it and/or modify  */
10
/* it under the terms of the GNU Lesser General Public License as published  */
11
/* by the Free Software Foundation; either version 2.1 of the License, or    */
12
/* (at your option) any later version.                                       */
13
/*                                                                           */
14
/* This source is distributed in the hope that it will be useful, but WITHOUT*/
15
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     */
16
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public       */
17
/* License for more details.                                                 */
18
/*                                                                           */
19
/* You should have received a copy of the GNU Lesser General Public License  */
20
/* along with this source; if not, write to the Free Software Foundation,    */
21
/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA        */
22
/*                                                                           */
23
/*===========================================================================*/
24
/*                            WATCHDOG TIMER                                 */
25
/*---------------------------------------------------------------------------*/
26
/* Test the Watdog timer:                                                    */
27
/*                        - Clock source selection.                          */
28 18 olivier.gi
/*                                                                           */
29
/* Author(s):                                                                */
30
/*             - Olivier Girard,    olgirard@gmail.com                       */
31
/*                                                                           */
32
/*---------------------------------------------------------------------------*/
33 19 olivier.gi
/* $Rev: 19 $                                                                */
34
/* $LastChangedBy: olivier.girard $                                          */
35
/* $LastChangedDate: 2009-08-04 23:47:15 +0200 (Tue, 04 Aug 2009) $          */
36 2 olivier.gi
/*===========================================================================*/
37
 
38
.global main
39
 
40
.set   BCSCTL1, 0x0057
41
.set   BCSCTL2, 0x0058
42
 
43
.set   IE1,    0x0000
44
.set   IFG1,   0x0002
45
.set   WDTCTL, 0x0120
46
 
47
WAIT_FUNC:
48
        dec r14
49
        jnz WAIT_FUNC
50
        ret
51
 
52
main:
53
 
54
        /* -------   WATCHDOG TEST INTERVAL MODE /64 - SMCLK /2      ------ */
55
 
56
        mov   #0x0250, r1         ;# Initialize stack & Enable interrupts
57
        eint
58
        bis.b   #0x01,   &IE1
59
 
60
        mov.b   #0x02, &BCSCTL2	  ;# SMCLK = MCLK/2
61
        mov   #0x5a1b, &WDTCTL	  ;# Enable interval mode /64 & clear counter
62
        mov   #0x0001, r15
63
 
64
        mov   #0x0170, r14
65
        call  #WAIT_FUNC
66
 
67
        mov   #0x1000, r15
68
 
69
 
70
        /* -------   WATCHDOG TEST INTERVAL MODE /64 - ACLK        ------ */
71
 
72
        mov   #0x0250, r1         ;# Initialize stack & Enable interrupts
73
        eint
74
        bis.b   #0x01,   &IE1
75
 
76
        mov.b   #0x00, &BCSCTL1	  ;# ACLK = LFXTCLK/1
77
        mov   #0x5a1f, &WDTCTL	  ;# Enable interval mode /64 & clear counter
78
        mov   #0x1001, r15
79
 
80
        mov   #0x1000, r14
81
        call  #WAIT_FUNC
82
 
83
        mov   #0x2000, r15
84
 
85
 
86
 
87
        /* ----------------------         END OF TEST        --------------- */
88
end_of_test:
89
        nop
90
        br #0xffff
91
 
92
 
93
        /* ----------------------      INTERRUPT ROUTINES    --------------- */
94
 
95
WDOG_VECTOR:
96
        xor  #0x0001, r5        ; # Toggle r5[0] for testbench stimulus check
97
        reti
98
 
99
 
100
        /* ----------------------         INTERRUPT VECTORS  --------------- */
101
 
102
.section .vectors, "a"
103
.word end_of_test  ; Interrupt  0 (lowest priority)    
104
.word end_of_test  ; Interrupt  1                      
105
.word end_of_test  ; Interrupt  2                      
106
.word end_of_test  ; Interrupt  3                      
107
.word end_of_test  ; Interrupt  4                      
108
.word end_of_test  ; Interrupt  5                      
109
.word end_of_test  ; Interrupt  6                      
110
.word end_of_test  ; Interrupt  7                      
111
.word end_of_test  ; Interrupt  8                      
112
.word end_of_test  ; Interrupt  9                      
113
.word WDOG_VECTOR  ; Interrupt 10                      Watchdog timer
114
.word end_of_test  ; Interrupt 11                      
115
.word end_of_test  ; Interrupt 12                      
116
.word end_of_test  ; Interrupt 13                      
117
.word end_of_test  ; Interrupt 14                      NMI
118
.word main         ; Interrupt 15 (highest priority)   RESET

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.