dsp281x_ev.c

基于2812的触摸屏的程序,能够显示基本图形.

//###########################################################################
//
// FILE:	DSP281x_Ev.c
//
// TITLE:	DSP281x Event Manager Initialization & Support Functions.
//
//###########################################################################
//
//  Ver | dd mmm yyyy | Who  | Description of changes
// =====|=============|======|===============================================
//  1.00| 11 Sep 2003 | L.H. | No change since previous version (v.58 Alpha)
//###########################################################################

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File

//---------------------------------------------------------------------------
// InitEv: 
//---------------------------------------------------------------------------
// This function initializes to a known state.

void init_eva(void)
{
//  Initialize EVA Timer -------------------------
//  Setup Timer 1 Registers (EVA)		
	EvaRegs.T1PR   = 4000;
	EvaRegs.T1CMPR = 725;
	EvaRegs.T1CNT  = 0x0000;
	EvaRegs.T1CON.all = 0x104A;
//  Setup Timer 2 Registers (EVA)		
	EvaRegs.T2PR   = 4000;
	EvaRegs.T2CMPR = 725;
	EvaRegs.T2CNT  = 0x0000;
	EvaRegs.T2CON.all = 0x104A;

//	Enable PWM1-PWM6 compare function
	EvaRegs.CMPR1 = 725;
	EvaRegs.CMPR2 = 705;
	EvaRegs.CMPR3 = 725;
	
	EvaRegs.ACTRA.all = 0x0666;
	EvaRegs.DBTCONA.all = 0x0000;
	EvaRegs.COMCONA.all = 0xA600;
	EvaRegs.GPTCONA.all = 0x7A;	
}

void init_evb(void)
{
//  Initialize EVA Timer -------------------------
//  Setup Timer 3 Registers (EVA)		
	EvbRegs.T3PR   = 4000;
	EvbRegs.T3CMPR = 725;
	EvbRegs.T3CNT  = 0x0000;
	EvbRegs.T3CON.all = 0x104A;
	EvbRegs.T4CON.bit.TENABLE = 1;
	
//  Setup Timer 4 Registers (EVA)		
	EvbRegs.T4PR   = 0xFFFF;
	EvbRegs.T4CMPR = 725;
	EvbRegs.T4CNT  = 0x0000;
	EvbRegs.T4CON.all = 0x1700;	
	EvbRegs.T4CON.bit.TENABLE = 1;
											
//	Enable PWM7-PWM12 compare function
	EvbRegs.CMPR4 = 725;
	EvbRegs.CMPR5 = 725;
	EvbRegs.CMPR6 = 725;
	
	EvbRegs.ACTRB.all = 0x0666;
	EvbRegs.DBTCONB.all = 0x0000;
	EvbRegs.COMCONB.all = 0xA600;
	EvbRegs.GPTCONB.all = 0x7A;
}

void InitEv(void)
{
	init_eva();	
	init_evb();
}

//===========================================================================
// No more.
//===========================================================================