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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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/* TIMER A */
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/*---------------------------------------------------------------------------*/
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/* Test the timer A: */
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/* - Check the timer compare features. */
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18 |
olivier.gi |
/* */
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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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19 |
olivier.gi |
/* $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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2 |
olivier.gi |
/*===========================================================================*/
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.global main
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.set TACTL, 0x0160
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.set TAR, 0x0170
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.set TACCTL0, 0x0162
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.set TACCR0, 0x0172
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.set TACCTL1, 0x0164
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.set TACCR1, 0x0174
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.set TACCTL2, 0x0166
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.set TACCR2, 0x0176
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.set TAIV, 0x012E
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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 #0x0250, r1 ; # Initialize stack pointer
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mov #0x0000, &0x0200
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/* -------------- TIMER A TEST: UP MODE ----------------- */
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mov #0x0200, &TACTL
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mov #0x0000, &TACCTL0
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mov #0x0000, &TACCTL1
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mov #0x0000, &TACCTL2
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eint
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; # --------- COMPARATOR 0 ----------
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mov #0x0204, &TACTL
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mov #0x0015, &TACCR0 ; # Period = (0x15+1)*2
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0000, &TACCR1 ; #
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mov #0x0000, &TACCTL1 ; # Disabled
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mov #0x0000, &TACCR2 ; #
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mov #0x0000, &TACCTL2 ; # Disabled
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mov #0x0256, &TACTL ; # Up-mode & clk/2, IRQ enabled
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mov #0x0001, &0x0200
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mov #0x0010, r14
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call #WAIT_FUNC
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; # --------- COMPARATOR 1 ----------
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mov #0x0204, &TACTL
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mov #0x0015, &TACCR0 ; # Period = (0x15+1)*2
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mov #0x0000, &TACCTL0 ; #
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0005, &TACCR1 ; #
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mov #0x0090, &TACCTL1 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0000, &TACCR2 ; #
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mov #0x0000, &TACCTL2 ; # Disabled
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mov #0x0254, &TACTL ; # Up-mode & clk/2
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mov #0x0002, &0x0200
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mov #0x0008, r14
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call #WAIT_FUNC
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; # --------- COMPARATOR 2 ----------
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mov #0x0204, &TACTL
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mov #0x0015, &TACCR0 ; # Period = (0x15+1)*2
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mov #0x0000, &TACCTL0 ; #
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0000, &TACCR1 ; #
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mov #0x0000, &TACCTL1 ; # Disabled
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mov #0x000C, &TACCR2 ; #
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mov #0x0090, &TACCTL2 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0254, &TACTL ; # Up-mode & clk/2
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mov #0x0003, &0x0200
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mov #0x0008, r14
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call #WAIT_FUNC
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dint
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mov #0x0000, &0x0200
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mov #0x1000, r15
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/* -------------- TIMER A TEST: CONTINUOUS MODES ----------------- */
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mov #0x0200, &TACTL
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mov #0x0000, &TACCTL0
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mov #0x0000, &TACCTL1
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mov #0x0000, &TACCTL2
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eint
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; # --------- COMPARATOR 0, 1 and 2 - TEST 1 ----------
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mov #0x0204, &TACTL
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mov #0x0030, &TACCR0
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0060, &TACCR1
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mov #0x0090, &TACCTL1 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0090, &TACCR2
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mov #0x0090, &TACCTL2 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0266, &TACTL ; # Continuous-mode & clk/2, IRQ enabled
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mov #0xfff0, &TAR
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mov #0x0001, &0x0200
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mov #0x0080, r14
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call #WAIT_FUNC
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; # --------- COMPARATOR 0, 1 and 2 - TEST 2 ----------
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mov #0x0204, &TACTL
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mov #0x0030, &TACCR0
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0060, &TACCR1
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mov #0x0090, &TACCTL1 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0090, &TACCR2
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mov #0x0090, &TACCTL2 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0266, &TACTL ; # Continuous-mode & clk/2, IRQ enabled
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mov #0xfff0, &TAR
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mov #0x0002, &0x0200
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mov #0x0080, r14
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call #WAIT_FUNC
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dint
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mov #0x0000, &0x0200
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mov #0x2000, r15
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/* -------------- TIMER A TEST: UP-DOWN MODE ----------------- */
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mov #0x0200, &TACTL
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mov #0x0000, &TACCTL0
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mov #0x0000, &TACCTL1
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mov #0x0000, &TACCTL2
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eint
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; # --------- COMPARATOR 0, 1 and 2 ----------
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mov #0x0204, &TACTL
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mov #0x0090, &TACCR0
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0060, &TACCR1
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mov #0x0090, &TACCTL1 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0030, &TACCR2
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mov #0x0090, &TACCTL2 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0001, &0x0200
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mov #0x0277, &TACTL ; # Up-down mode & clk/2, IRQ enabled
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mov #0x00E0, r14
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call #WAIT_FUNC
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mov #0x0000, &TACCTL0
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mov #0x0000, &TACCTL1
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mov #0x0000, &TACCTL2
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mov #0x0204, &TACTL
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; # --------- COMPARATOR 0, 1 and 2 ----------
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mov #0x0204, &TACTL
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mov #0x0090, &TACCR0
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mov #0x0090, &TACCTL0 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0060, &TACCR1
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mov #0x0090, &TACCTL1 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0030, &TACCR2
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mov #0x0090, &TACCTL2 ; # Compare mode, output toggle mode, IRQ enabled
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mov #0x0002, &0x0200
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mov #0x0277, &TACTL ; # Up-down mode & clk/2, IRQ enabled
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mov #0x00E0, r14
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call #WAIT_FUNC
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dint
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mov #0x0000, &0x0200
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mov #0x3000, r15
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/* -------------- TIMER A TEST: CCI INPUT LATCHING (SCCI) ----------------- */
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mov #0x0200, &TACTL
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mov #0x0000, &TACCTL0
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mov #0x0000, &TACCTL1
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mov #0x0000, &TACCTL2
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eint
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; # --------- UP-MODE - COMPARATOR 0 ----------
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mov #0x0204, &TACTL
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mov #0x0020, &TACCR0
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mov #0x3080, &TACCTL0 ; # Compare mode, output toggle mode, select VCC input
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mov #0x0000, &TACCR1
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mov #0x0000, &TACCTL1 ; # Disabled
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mov #0x0000, &TACCR2
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mov #0x0000, &TACCTL2 ; # Disabled
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mov #0x0001, &0x0200
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mov #0x0254, &TACTL ; # Up-mode & clk/2
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comp0_check_0: ; # Wait until SCCI is set to 1
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mov r5, &0x0202
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mov &TACCTL0, r5
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mov r5, r4
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and #0x0001, r4
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jz comp0_check_0
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mov &TACCTL0, &0x0204
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mov #0x2080, &TACCTL0 ; # Wait until SCCI is set back to 0
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comp0_check_1:
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mov r5, &0x0206
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mov &TACCTL0, r5
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mov r5, r4
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and #0x0001, r4
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jz comp0_check_1
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mov &TACCTL0, &0x0208
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237 |
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; # --------- UP-MODE - COMPARATOR 1 ----------
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mov #0x0204, &TACTL
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mov #0x0040, &TACCR0
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mov #0x0000, &TACCTL0 ; # Disabled
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243 |
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mov #0x0020, &TACCR1
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mov #0x3080, &TACCTL1 ; # Compare mode, output toggle mode, select VCC input
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245 |
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mov #0x0000, &TACCR2
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mov #0x0000, &TACCTL2 ; # Disabled
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247 |
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mov #0x0002, &0x0200
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mov #0x0254, &TACTL ; # Up-mode & clk/2
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249 |
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comp1_check_0: ; # Wait until SCCI is set to 1
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mov r5, &0x0212
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mov &TACCTL1, r5
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mov r5, r4
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and #0x0001, r4
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jz comp1_check_0
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mov &TACCTL1, &0x0214
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mov #0x2080, &TACCTL1 ; # Wait until SCCI is set back to 0
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comp1_check_1:
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mov r5, &0x0216
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mov &TACCTL1, r5
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mov r5, r4
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and #0x0001, r4
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264 |
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jz comp1_check_1
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mov &TACCTL1, &0x0218
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266 |
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267 |
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268 |
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; # --------- UP-MODE - COMPARATOR 2 ----------
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269 |
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mov #0x0204, &TACTL
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270 |
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mov #0x0040, &TACCR0
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271 |
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mov #0x0000, &TACCTL0 ; # Disabled
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272 |
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mov #0x0000, &TACCR1
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273 |
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mov #0x0000, &TACCTL1 ; # Disabled
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274 |
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mov #0x0020, &TACCR2
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275 |
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mov #0x3080, &TACCTL2 ; # Compare mode, output toggle mode, select VCC input
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276 |
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mov #0x0003, &0x0200
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277 |
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mov #0x0254, &TACTL ; # Up-mode & clk/2
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278 |
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comp2_check_0: ; # Wait until SCCI is set to 1
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280 |
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mov r5, &0x0222
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281 |
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mov &TACCTL2, r5
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282 |
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mov r5, r4
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283 |
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and #0x0001, r4
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284 |
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jz comp2_check_0
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285 |
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mov &TACCTL2, &0x0224
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286 |
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287 |
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mov #0x2080, &TACCTL2 ; # Wait until SCCI is set back to 0
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288 |
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comp2_check_1:
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289 |
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mov r5, &0x0226
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290 |
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mov &TACCTL2, r5
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291 |
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mov r5, r4
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292 |
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and #0x0001, r4
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293 |
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jz comp2_check_1
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294 |
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mov &TACCTL2, &0x0228
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295 |
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296 |
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297 |
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dint
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298 |
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mov #0x0000, &0x0200
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299 |
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mov #0x4000, r15
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300 |
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301 |
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302 |
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/* ---------------------- END OF TEST --------------- */
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303 |
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end_of_test:
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304 |
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nop
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305 |
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br #0xffff
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306 |
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307 |
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308 |
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/* ---------------------- INTERRUPT ROUTINES --------------- */
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309 |
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310 |
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TIMERA_CCR0_VECTOR:
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311 |
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mov &TAR, &0x0202
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312 |
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reti
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313 |
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314 |
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315 |
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TIMERA_TAIV_VECTOR:
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316 |
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mov &TAR, &0x0204
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317 |
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mov &TAIV, &0x0206
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318 |
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reti
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319 |
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320 |
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321 |
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/* ---------------------- INTERRUPT VECTORS --------------- */
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322 |
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323 |
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.section .vectors, "a"
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324 |
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.word end_of_test ; Interrupt 0 (lowest priority)
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325 |
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.word end_of_test ; Interrupt 1
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326 |
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.word end_of_test ; Interrupt 2
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327 |
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.word end_of_test ; Interrupt 3
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328 |
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.word end_of_test ; Interrupt 4
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329 |
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.word end_of_test ; Interrupt 5
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330 |
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.word end_of_test ; Interrupt 6
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331 |
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.word end_of_test ; Interrupt 7
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332 |
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.word TIMERA_TAIV_VECTOR ; Interrupt 8
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333 |
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.word TIMERA_CCR0_VECTOR ; Interrupt 9
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334 |
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.word end_of_test ; Interrupt 10 Watchdog timer
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335 |
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.word end_of_test ; Interrupt 11
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336 |
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.word end_of_test ; Interrupt 12
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337 |
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.word end_of_test ; Interrupt 13
|
338 |
|
|
.word end_of_test ; Interrupt 14 NMI
|
339 |
|
|
.word main ; Interrupt 15 (highest priority) RESET
|