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olivier.gi |
/*===========================================================================*/
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/* Copyright (C) 2001 Authors */
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/* */
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/* This source file may be used and distributed without restriction provided */
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/* that this copyright statement is not removed from the file and that any */
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/* derivative work contains the original copyright notice and the associated */
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/* disclaimer. */
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/* */
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/* This source file is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU Lesser General Public License as published */
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/* by the Free Software Foundation; either version 2.1 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This source is distributed in the hope that it will be useful, but WITHOUT*/
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
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/* License for more details. */
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/* */
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/* You should have received a copy of the GNU Lesser General Public License */
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/* along with this source; if not, write to the Free Software Foundation, */
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/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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/* */
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/*===========================================================================*/
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/* CLOCK MODULE */
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/*---------------------------------------------------------------------------*/
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/* Test the clock module: */
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/* - Check the MCLK clock generation. */
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/* */
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/* Author(s): */
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/* - Olivier Girard, olgirard@gmail.com */
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/* */
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/*---------------------------------------------------------------------------*/
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/* $Rev: 19 $ */
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/* $LastChangedBy: olivier.girard $ */
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/* $LastChangedDate: 2009-08-04 23:47:15 +0200 (Tue, 04 Aug 2009) $ */
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/*===========================================================================*/
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141 |
olivier.gi |
.include "pmem_defs.asm"
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134 |
olivier.gi |
.global main
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.macro LPM_CUSTOM ; # Stop CPU and LFXT oscillator
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bis #0x0030, r2
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.endm
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.macro LPM_CUSTOM_exit
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bic #0x0030, @r1
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.endm
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WAIT_FUNC:
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dec r14
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jnz WAIT_FUNC
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ret
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main:
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mov #DMEM_250, r1 ; # Initialize stack pointer
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eint ; # Enable interrupts
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mov #0x0000, &DMEM_200
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mov #0x0000, r15
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mov #0x0000, r10
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/* -------------- MCLK GENERATION - LFXT_CLK INPUT ----------------- */
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mov.b #0x80, &BCSCTL2 ; # Div /1
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mov #0x0003, r14
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call #WAIT_FUNC
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mov #0x0001, r15 ; # First make sure CPU runs with LFXT_CLK
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mov #0x000A, r14
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call #WAIT_FUNC
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mov #0x0002, r15 ; # Make sure the CPU stops and LFXT oscillator too
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LPM_CUSTOM
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mov #0x0003, r15 ; # Make sure CPU re-runs with LFXT_CLK
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mov #0x000A, r14
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call #WAIT_FUNC
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mov #0x0004, r15
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/* ---------------------- END OF TEST --------------- */
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end_of_test:
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nop
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br #0xffff
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/* ---------------------- FUNCTIONS --------------- */
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IRQ00_ROUTINE:
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add #0x5678, r10
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LPM_CUSTOM_exit
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reti
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/* ---------------------- INTERRUPT VECTORS --------------- */
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.section .vectors, "a"
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.word IRQ00_ROUTINE ; Interrupt 0 (lowest priority)
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.word end_of_test ; Interrupt 1
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.word end_of_test ; Interrupt 2
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.word end_of_test ; Interrupt 3
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.word end_of_test ; Interrupt 4
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.word end_of_test ; Interrupt 5
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.word end_of_test ; Interrupt 6
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.word end_of_test ; Interrupt 7
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.word end_of_test ; Interrupt 8
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.word end_of_test ; Interrupt 9
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.word end_of_test ; Interrupt 10 Watchdog timer
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.word end_of_test ; Interrupt 11
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.word end_of_test ; Interrupt 12
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.word end_of_test ; Interrupt 13
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.word end_of_test ; Interrupt 14 NMI
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.word main ; Interrupt 15 (highest priority) RESET
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