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136 lines
3.8 KiB
136 lines
3.8 KiB
/*
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* Copyright 2002 by Texas Instruments Incorporated.
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* All rights reserved. Property of Texas Instruments Incorporated.
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* Restricted rights to use, duplicate or disclose this code are
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* granted through contract.
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*
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*/
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/* "@(#) DSP/BIOS 4.80.188 12-06-02 (bios,dsk5416-a11)" */
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/******************************************************************************\
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* Copyright (C) 2000 Texas Instruments Incorporated.
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* All Rights Reserved
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*------------------------------------------------------------------------------
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* FILENAME...... timer.c
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* DATE CREATED.. 01/11/2000
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* LAST MODIFIED. 12/29/2000
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\******************************************************************************/
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#include <stdio.h>
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#include <csl.h>
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#include <csl_irq.h>
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#include <csl_timer.h>
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#include "uart.h"
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/*----------------------------------------------------------------------------*/
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/* In this exmaple, we are simply setting the timer to interrupt */
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/* every 0x800 clock cycles. All timer setup will be done in a */
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/* TASK function that executes after exit from "main" */
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/* Create a timer control structure */
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TIMER_Config myTConfig = {
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TIMER_TCR_RMK(
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TIMER_TCR_SOFT_WAITZERO,
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TIMER_TCR_FREE_NOSOFT,
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TIMER_TCR_TRB_RESET,
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TIMER_TCR_TSS_START,
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TIMER_TCR_TDDR_OF(0)
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), /* TCR0 */
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0x0800u /* PRD0 */
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};
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/* Global declarations */
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TIMER_Handle mhTimer;
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volatile Uint16 timer_int_cnt = 0;
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interrupt void timerIsr(void);
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void taskFunc(void);
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/*----------------------------------------------------------------------------*/
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void main() {
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uart_puts("C5416 Timer Test Start...\n");
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/* Initialize CSL library, this step is required */
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CSL_init();
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/* Call example task/function */
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taskFunc();
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while(1);
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}
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/*----------------------------------------------------------------------------*/
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void taskFunc(void) {
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Uint16 eventId;
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int old_intm;
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Uint16 err = 0;
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//printf("<TIMER>\n");
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uart_puts("<TIMER>\n");
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/* Temporarily disable all maskable interrupts, preserving */
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/* previous state of INTM */
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old_intm = IRQ_globalDisable();
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/* Open Timer 0, this returns a pointer to a Timer Handle */
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/* that will be used as an argument to other CSL functions */
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mhTimer = TIMER_open(TIMER_DEV0, TIMER_OPEN_RESET);
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/* Write configuration structure values to Timer control */
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/* registers. */
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TIMER_config(mhTimer, &myTConfig);
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/* Get Event ID associated with Timer interrupt */
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eventId = TIMER_getEventId(mhTimer);
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/* Clear any pending Timer interrupts */
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IRQ_clear(eventId);
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/* Place interrupt service routine address at associated vector */
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IRQ_plug(eventId,timerIsr);
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/* Enable Timer interrupt */
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IRQ_enable(eventId);
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/* Enable all maskable interrupts */
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IRQ_globalEnable();
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/* Start Timer */
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TIMER_start(mhTimer);
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/* wait for 20 timer periods */
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while(timer_int_cnt < 20);
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/* We are through with the Timer, so close it */
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TIMER_close(mhTimer);
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/* Restore old value of INTM */
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IRQ_globalRestore(old_intm);
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if (timer_int_cnt < 20)
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++err;
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//printf("%s\n",err?"TEST FAILED":"TEST PASSED");
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//printf("<DONE>\n");
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if (err)
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uart_puts("TEST FAILED\n");
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else
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uart_puts("TEST PASSED\n");
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uart_puts("<DONE>\n");
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}
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/*----------------------------------------------------------------------------*/
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/* Timer ISR - will be called by DSP/BIOS dispatcher */
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interrupt void timerIsr(void) {
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TIMER_stop(mhTimer);
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timer_int_cnt = timer_int_cnt + 1;
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if (timer_int_cnt < 20) {
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TIMER_start(mhTimer);
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}
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uart_puts("Entry Timer Isr function...\n");
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}
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