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/*===========================================================================*/
/* Copyright (C) 2001 Authors                                                */
/*                                                                           */
/* This source file may be used and distributed without restriction provided */
/* that this copyright statement is not removed from the file and that any   */
/* derivative work contains the original copyright notice and the associated */
/* disclaimer.                                                               */
/*                                                                           */
/* This source file is free software; you can redistribute it and/or modify  */
/* it under the terms of the GNU Lesser General Public License as published  */
/* by the Free Software Foundation; either version 2.1 of the License, or    */
/* (at your option) any later version.                                       */
/*                                                                           */
/* This source is distributed in the hope that it will be useful, but WITHOUT*/
/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or     */
/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public       */
/* License for more details.                                                 */
/*                                                                           */
/* You should have received a copy of the GNU Lesser General Public License  */
/* along with this source; if not, write to the Free Software Foundation,    */
/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA        */
/*                                                                           */
/*===========================================================================*/
/*                                  TIMER A                                  */
/*---------------------------------------------------------------------------*/
/* Test the timer A:                                                         */
/*                        - Check the timer capture unit.                    */
/*                                                                           */
/* Author(s):                                                                */
/*             - Olivier Girard,    olgirard@gmail.com                       */
/*                                                                           */
/*---------------------------------------------------------------------------*/
/* $Rev: 17 $                                                                */
/* $LastChangedBy: olivier.girard $                                          */
/* $LastChangedDate: 2009-08-04 23:15:39 +0200 (Tue, 04 Aug 2009) $          */
/*===========================================================================*/

.global main

.set   TACTL,   0x0160
.set   TAR,     0x0170
.set   TACCTL0, 0x0162
.set   TACCR0,  0x0172
.set   TACCTL1, 0x0164
.set   TACCR1,  0x0174
.set   TACCTL2, 0x0166
.set   TACCR2,  0x0176
.set   TAIV,    0x012E


WAIT_FUNC:
        dec r14
        jnz WAIT_FUNC
        ret
        
main:
        mov  #0x0250, r1        ; # Initialize stack pointer
        mov  #0x0000, &0x0200
        mov  #0x0000, r15

       /* --------------   TIMER A TEST:  INPUT MUX (CCI) ----------------- */

        mov  #0x0200, &TACTL
        mov  #0x0000, &TACCTL0
        mov  #0x0000, &TACCTL1
        mov  #0x0000, &TACCTL2
        dint

                                ; # --------- Comparator 0 ----------
        mov  #0x0204, &TACTL
        mov  #0x0000, &TACCR0
        mov  #0x0000, &TACCTL0  ; # CCIxA
        mov  #0x0001, &0x0200
        mov &TACCTL0, &0x0202
        mov  #0x0002, &0x0200
        mov &TACCTL0, &0x0204
        mov  #0x0003, &0x0200

        mov  #0x1000, &TACCTL0  ; # CCIxB
        mov  #0x0004, &0x0200
        mov &TACCTL0, &0x0202
        mov  #0x0005, &0x0200
        mov &TACCTL0, &0x0204
        mov  #0x0006, &0x0200

        mov  #0x2000, &TACCTL0  ; # GND
        mov  #0x0007, &0x0200
        mov &TACCTL0, &0x0202
        mov  #0x0008, &0x0200
        mov &TACCTL0, &0x0204
        mov  #0x0009, &0x0200

        mov  #0x3000, &TACCTL0  ; # VDD
        mov  #0x000A, &0x0200
        mov &TACCTL0, &0x0202
        mov  #0x000B, &0x0200
        mov &TACCTL0, &0x0204
        mov  #0x000C, &0x0200

                                ; # --------- Comparator 1 ----------
        mov  #0x0204, &TACTL
        mov  #0x0000, &TACCR1
        mov  #0x0000, &TACCTL1  ; # CCIxA
        mov  #0x0011, &0x0200
        mov &TACCTL1, &0x0202
        mov  #0x0012, &0x0200
        mov &TACCTL1, &0x0204
        mov  #0x0013, &0x0200

        mov  #0x1000, &TACCTL1  ; # CCIxB
        mov  #0x0014, &0x0200
        mov &TACCTL1, &0x0202
        mov  #0x0015, &0x0200
        mov &TACCTL1, &0x0204
        mov  #0x0016, &0x0200

        mov  #0x2000, &TACCTL1  ; # GND
        mov  #0x0017, &0x0200
        mov &TACCTL1, &0x0202
        mov  #0x0018, &0x0200
        mov &TACCTL1, &0x0204
        mov  #0x0019, &0x0200

        mov  #0x3000, &TACCTL1  ; # VDD
        mov  #0x001A, &0x0200
        mov &TACCTL1, &0x0202
        mov  #0x001B, &0x0200
        mov &TACCTL1, &0x0204
        mov  #0x001C, &0x0200

                                ; # --------- Comparator 2 ----------
        mov  #0x0204, &TACTL
        mov  #0x0000, &TACCR2
        mov  #0x0000, &TACCTL2  ; # CCIxA
        mov  #0x0021, &0x0200
        mov &TACCTL2, &0x0202
        mov  #0x0022, &0x0200
        mov &TACCTL2, &0x0204
        mov  #0x0023, &0x0200

        mov  #0x1000, &TACCTL2  ; # CCIxB
        mov  #0x0024, &0x0200
        mov &TACCTL2, &0x0202
        mov  #0x0025, &0x0200
        mov &TACCTL2, &0x0204
        mov  #0x0026, &0x0200

        mov  #0x2000, &TACCTL2  ; # GND
        mov  #0x0027, &0x0200
        mov &TACCTL2, &0x0202
        mov  #0x0028, &0x0200
        mov &TACCTL2, &0x0204
        mov  #0x0029, &0x0200

        mov  #0x3000, &TACCTL2  ; # VDD
        mov  #0x002A, &0x0200
        mov &TACCTL2, &0x0202
        mov  #0x002B, &0x0200
        mov &TACCTL2, &0x0204
        mov  #0x002C, &0x0200

        
        dint            
        mov  #0x0000, &0x0200
        mov  #0x1000, r15

       /* --------------   TIMER A TEST:  CAPTURE, EDGE SELECTION AND INTERRUPT ----------------- */

        mov  #0x0200, &TACTL
        mov  #0x0000, &TACCTL0
        mov  #0x0000, &TACCTL1
        mov  #0x0000, &TACCTL2
        dint

                                ; # --------- Comparator 0 ----------
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x0110, &TACCTL0  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0001, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0202
        mov  #0x0110, &TACCTL0  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0002, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x0003, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x4110, &TACCTL0  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0004, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0202
        mov  #0x4110, &TACCTL0  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0005, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x0006, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x8110, &TACCTL0  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0007, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0202
        mov  #0x8110, &TACCTL0  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x0008, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x0009, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0xC110, &TACCTL0  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x000A, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0202
        mov  #0xC110, &TACCTL0  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR0
        mov  #0x000B, &0x0200
        nop
        nop
        mov  &TACCR0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x000C, &0x0200
        

                                ; # --------- Comparator 1 ----------
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x0110, &TACCTL1  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0001, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0202
        mov  #0x0110, &TACCTL1  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0002, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x0003, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x4110, &TACCTL1  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0004, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0202
        mov  #0x4110, &TACCTL1  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0005, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x0006, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x8110, &TACCTL1  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0007, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0202
        mov  #0x8110, &TACCTL1  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x0008, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x0009, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0xC110, &TACCTL1  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x000A, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0202
        mov  #0xC110, &TACCTL1  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR1
        mov  #0x000B, &0x0200
        nop
        nop
        mov  &TACCR1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x000C, &0x0200

        
                                ; # --------- Comparator 2 ----------
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x0110, &TACCTL2  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0001, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0202
        mov  #0x0110, &TACCTL2  ; # No capture, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0002, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x0003, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x4110, &TACCTL2  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0004, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0202
        mov  #0x4110, &TACCTL2  ; # Rising edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0005, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x0006, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0x8110, &TACCTL2  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0007, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0202
        mov  #0x8110, &TACCTL2  ; # Falling edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x0008, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x0009, &0x0200
        
        mov  #0x0204, &TACTL
        mov  #0x1234, &TAR
        mov  #0xC110, &TACCTL2  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x000A, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0202
        mov  #0xC110, &TACCTL2  ; # Rising/Falling edge, Interrupt enable
        mov  #0x0000, &TACCR2
        mov  #0x000B, &0x0200
        nop
        nop
        mov  &TACCR2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x000C, &0x0200
        

        dint            
        mov  #0x0000, &0x0200
        mov  #0x2000, r15
        
       /* --------------   TIMER A TEST:  CAPTURE OVERFLOW ----------------- */

        mov  #0x0200, &TACTL
        mov  #0x0000, &TACCTL0
        mov  #0x0000, &TACCTL1
        mov  #0x0000, &TACCTL2
        dint

                                ; # --------- Comparator 0 ----------
        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL0  ; # Both edges:  No read -> overflow
        mov  #0x0001, &0x0200
        nop
        nop
        mov &TACCTL0, &0x0202
        mov  #0x0002, &0x0200
        nop
        nop
        mov &TACCTL0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x0003, &0x0200

        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL0  ; # Both edges:  Read -> no overflow
        mov  #0x0004, &0x0200
        nop
        nop
        mov &TACCTL0, &0x0202
        mov  &TACCR0, r10       ; # Read
        mov  #0x0005, &0x0200
        nop
        nop
        mov &TACCTL0, &0x0204
        mov  #0x0000, &TACCTL0
        mov  #0x0006, &0x0200

                                ; # --------- Comparator 1 ----------
        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL1  ; # Both edges:  No read -> overflow
        mov  #0x0001, &0x0200
        nop
        nop
        mov &TACCTL1, &0x0202
        mov  #0x0002, &0x0200
        nop
        nop
        mov &TACCTL1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x0003, &0x0200

        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL1  ; # Both edges:  Read -> no overflow
        mov  #0x0004, &0x0200
        nop
        nop
        mov &TACCTL1, &0x0202
        mov  &TACCR1, r10       ; # Read
        mov  #0x0005, &0x0200
        nop
        nop
        mov &TACCTL1, &0x0204
        mov  #0x0000, &TACCTL1
        mov  #0x0006, &0x0200

                                ; # --------- Comparator 2 ----------
        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL2  ; # Both edges:  No read -> overflow
        mov  #0x0001, &0x0200
        nop
        nop
        mov &TACCTL2, &0x0202
        mov  #0x0002, &0x0200
        nop
        nop
        mov &TACCTL2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x0003, &0x0200

        mov  #0x0204, &TACTL
        mov  #0xC000, &TACCTL2  ; # Both edges:  Read -> no overflow
        mov  #0x0004, &0x0200
        nop
        nop
        mov &TACCTL2, &0x0202
        mov  &TACCR2, r10       ; # Read
        mov  #0x0005, &0x0200
        nop
        nop
        mov &TACCTL2, &0x0204
        mov  #0x0000, &TACCTL2
        mov  #0x0006, &0x0200

        dint            
        mov  #0x0000, &0x0200
        mov  #0x3000, r15

                
        /* ----------------------         END OF TEST        --------------- */
end_of_test:
        nop
        br #0xffff


        /* ----------------------      INTERRUPT ROUTINES    --------------- */

TIMERA_CCR0_VECTOR:
        inc  &0x0200
        reti

        
TIMERA_TAIV_VECTOR:
        mov     &TAR, &0x0204
        mov    &TAIV, &0x0206
        reti


        /* ----------------------         INTERRUPT VECTORS  --------------- */

.section .vectors, "a"
.word end_of_test        ; Interrupt  0 (lowest priority)    <unused>
.word end_of_test        ; Interrupt  1                      <unused>
.word end_of_test        ; Interrupt  2                      <unused>
.word end_of_test        ; Interrupt  3                      <unused>
.word end_of_test        ; Interrupt  4                      <unused>
.word end_of_test        ; Interrupt  5                      <unused>
.word end_of_test        ; Interrupt  6                      <unused>
.word end_of_test        ; Interrupt  7                      <unused>
.word TIMERA_TAIV_VECTOR ; Interrupt  8                      <unused>
.word TIMERA_CCR0_VECTOR ; Interrupt  9                      <unused>
.word end_of_test        ; Interrupt 10                      Watchdog timer
.word end_of_test        ; Interrupt 11                      <unused>
.word end_of_test        ; Interrupt 12                      <unused>
.word end_of_test        ; Interrupt 13                      <unused>
.word end_of_test        ; Interrupt 14                      NMI
.word main               ; Interrupt 15 (highest priority)   RESET

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