main.c

2812的最小设计方案和基本编程的源码

#include "DSP28_Device.h"


unsigned int * LedReg  = (unsigned int *) 0x23FF;
	 	
void main(void)
{

// Step 1. Initialize System Control registers, PLL, WatchDog, Clocks to default state:
// This function is found in the DSP28_SysCtrl.c file.
	InitSysCtrl();

// Step 2. Initialize PIE vector table:
// The PIE vector table is initialized with pointers to shell Interrupt 
// Service Routines (ISR).  The shell routines are found in DSP28_DefaultIsr.c.
// Insert user specific ISR code in the appropriate shell ISR routine in 
// the DSP28_DefaultIsr.c file.


    // Disable and clear all CPU interrupts:
	DINT;
	IER = 0x0000;
	IFR = 0x0000;


// Initialize Pie Control Registers To Default State:
// This function is found in the DSP28_PieCtrl.c file.
	InitPieCtrl();

	/*初始化PIE中断矢量表*/	
	InitPieVectTable();	

	
	/*初始化外设*/
    InitPeripherals();
    

    /*开中断*/
	IER |= M_INT1;
	PieCtrl.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

//********************* initial *******************************************


	*LedReg = 0xFF;    // 关 LED

	while(1) ;

}

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// No more.
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