led.c

来自「TMS320F2808 DSP芯片的接口控制源码」· C语言 代码 · 共 69 行

#include "DSP280x_Device.h"     // DSP280x Headerfile Include File
#include "DSP280x_Examples.h"   // DSP280x Examples Include File

void	SetData(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO20 = 1;
	else
		GpioDataRegs.GPADAT.bit.GPIO24 = 1;	
}
void	ClrData(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO20 = 0;
	else
		GpioDataRegs.GPADAT.bit.GPIO24 = 0;	
}

void	SetClk(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO22 = 1;
	else
		GpioDataRegs.GPADAT.bit.GPIO26 = 1;	
}
void	ClrClk(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO22 = 0;
	else
		GpioDataRegs.GPADAT.bit.GPIO26 = 0;	
}

void	SetCs(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO19 = 1;
	else
		GpioDataRegs.GPADAT.bit.GPIO17 = 1;	
}

void	ClrCs(Uint16	num)
{
	if (num)
		GpioDataRegs.GPADAT.bit.GPIO19 = 0;
	else
		GpioDataRegs.GPADAT.bit.GPIO17 = 0;	
}

void	SendData(Uint16	num,Uint16 data)
{
	Uint16	i,Temp;
	Temp = 0x80;
	for	(i=0;i<8;i++)
		{
			if ((data & Temp)==0)	ClrData(num);
			else	SetData(num);
			Temp >>= 1;
			ClrClk(num);
			SetClk(num);
		}
	ClrCs(num);
	SetCs(num);	
	SetData(num);		
}

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