main.c

来自「dsp28335例程」· C语言 代码 · 共 81 行

#include "DSP2833x_Device.h"     // DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"   // DSP2833x Examples Include File

Uint16    *ExRamStart = (Uint16 *)0x100000;
Uint16  FrameLenth;
Uint16  RxSuccessFlag;

//-------------------
Uint16	TxEthnetFrameBuffer[1518/2];
Uint16	RxEthnetFrameBuffer[1518/2];

void	SendData(Uint16  data);
void 	main(void)
{
	Uint16	Temp;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file.
   InitSysCtrl();

// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio();  // Skipped for this example
   InitXintf16Gpio();	//zq

// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts
   DINT;

// Initialize the PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file.
   InitPieCtrl();

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

    SendData(0xFF);
	LedReg = 0xFF;
 	Init8019();

	while(1)
	{
       do{
	       Temp=RecFrame();
		 }while(Temp);
	   if(RxSuccessFlag)
	   {
	       RxSuccessFlag=0;
	       DoNetworkStuff();
	   }
	}		
}


void	SendData(Uint16 data)
{
	Uint16	i,Temp;
	Temp = 0x80;
	for	(i=0;i<8;i++)
		{
			if ((data & Temp)==0)	ClrData;
			else	SetData;
			Temp >>= 1;
			DELAY_US(100);
			ClrClk;
			DELAY_US(200);
			SetClk;
		}
	SysReg = 0xEF;
	DELAY_US(200);	
	SysReg = 0xFF ;
	SetData;		
}		
//===========================================================================
// No more.
//===========================================================================