example_280xcputimer.c

TMS320F2808 DSP芯片的接口控制源码

#include "DSP280x_Device.h"     // DSP280x Headerfile Include File
#include "DSP280x_Examples.h"   // DSP280x Examples Include File
interrupt void cpu_timer0_isr(void);
const	Uint16	LedCode[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,0xFF};
const	Uint16	Light[]  ={0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F };
void   	SendData(Uint16	num,Uint16	data);
Uint16	LedCount = 0;
Uint16	LedCount1 = 0;
Uint16	flag =0;

void main(void)
{

    InitSysCtrl();

 	InitGpio();  

	SetCs(1);
	SetCs(0);

    DINT;

    InitPieCtrl();
   
    IER = 0x0000;
    IFR = 0x0000;

    InitPieVectTable();

    EALLOW;  // This is needed to write to EALLOW protected registers
    PieVectTable.TINT0 = &cpu_timer0_isr;
    EDIS;    // This is needed to disable write to EALLOW protected registers

    InitCpuTimers();   // For this example, only initialize the Cpu Timers

    ConfigCpuTimer(&CpuTimer0, 100, 100000);
   
    IER |= M_INT1;

    PieCtrlRegs.PIEIER1.bit.INTx7 = 1;


// Enable global Interrupts and higher priority real-time debug events:
   EINT;   // Enable Global interrupt INTM
   ERTM;   // Enable Global realtime interrupt DBGM

// Step 6. IDLE loop. Just sit and loop forever (optional):
   SendData(1,0xB0);
   SendData(0,0xDF);	

   StartCpuTimer0();
   for (; ;);
} 


interrupt void cpu_timer0_isr(void)
{
   PieCtrlRegs.PIEACK.all = PIEACK_GROUP1;
    SendData(1,LedCode[LedCount]);
	SendData(0,Light[LedCount1]);
	LedCount++;
	LedCount1++;
	if (LedCount>15)	LedCount=0;
 	if (LedCount1>7)    LedCount1 = 0;
}

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