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Getting Started with dsPIC30F Digital Signal Controllers
A.2
FLASH LED WITH dsPIC30F6014.c
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Software License Agreement
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The software supplied herewith by Microchip Technology Incorporated
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(the "Company") for its dsPIC controller is intended and supplied to
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you, the Company's customer, for use solely and exclusively on
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Microchip dsPIC products. The software is owned by the Company and/or
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terms and conditions of this license.
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THIS SOFTWARE IS PROVIDED IN AN "AS IS" CONDITION. NO WARRANTIES,
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WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO,
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, IN ANY
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CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR CONSEQUENTIAL
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DAMAGES, FOR ANY REASON WHATSOEVER.
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*******************************************************************************
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Use Timer 1 to flash LED1 when switch SW1 is not pressed
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and flash LED2 when switch SW1 is pressed
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******************************************************************************/
#include "p30F6014.h"
//----------------------------------------------------------------------------//Configuration bits
_FOSC(CSW_FSCM_OFF & XT_PLL4);
_FWDT(WDT_OFF);
_FBORPOR(PBOR_OFF & BORV_27 & PWRT_16 & MCLR_EN);
_FGS(CODE_PROT_OFF);
//----------------------------------------------------------------------------//Program Specific Constants
#define
FCY
7372800
//Instruction cycle rate (Osc x PLL / 4)
//=============================================================================
//Main routine
//Set up LEDs and timer, wait for timer periods, and flash one of the two LEDs
int main(void)
{
LATD = 0xffff;
TRISD = 0xfff0;
LATDbits.LATD0 = 0;
//Initialize LED pin data to off state
//Set LED pins (PORTD bits 0-3) as outputs
//Turn LED1 on (active low)
T1CON = 0;
TMR1 = 0;
PR1 = FCY/256/5;
T1CON = 0x8030;
//Turn off Timer1 and clear settings
//Start Timer1 at zero
//Set period register value for 1/5 second
//Turn on Timer1 with 1:256 prescaler
while(1)
//Loop forever
DS70151A-page 102
© 2005 Microchip Technology Inc.