TI C281x Timer Configuration

Emmanuel January 20, 2011 Coded in C for the TI F28x

This code configures the CPU Timer 0 of the family C281x from Texas Instruments to generate an interruption at a rate of 2 Hz assuming 150 Mhz of system clock frequency.

**********************************************************************/
#include "DSP281x_Device.h"
/**********************************************************************
* Function: InitTimer()
*
* Description: Initialize the CPU Timer 0 at a rate of 2 Hz
**********************************************************************/
void InitTimer(void)
{	
	//CpuTimer0Regs.TIM.all = 0x0;        //Timer0 Counter Register
	
	CpuTimer0Regs.PRD.all = 0x047868C0;       //Period Register
	
	CpuTimer0Regs.TCR.all = 0x4830;       //Control Register
/*
bit 15		0:		CPU-Timer Interupt Flag
bit 14		1:		Timer Interrupt Enable
bit 13-12   0's:	Reserved
bit 11-10	10:		CPU-Timer Emulation Modes
bit 9-6		0's:	Reserved
bit 5		0:		CPU-Timer Reload bit
bit 4		0:		CPU-Timer Status Bit
bit 3-0		0's:	Reserved
*/
	
	CpuTimer0Regs.TPR.all = 0x0000;       //Prescale Register
	CpuTimer0Regs.TPRH.all = 0x0000;       //Prescale Register High
	
	
	PieCtrlRegs.PIEIER1.bit.INTx7 = 1; 		//Interruption enabled
	IER |= 0x0001;							//PIE group enabled
	
	StartCpuTimer0();//Reset of the Timer
	
}

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