display.c

PID典型算法

#include "2407bit.h"
#include "2407e.h"

void	DispInit(void)
{
	(*MCRB)&=~(1<<DISP_DATA)|(1<<DISP_CLK)|(1<<DISP_EN);
	(*PCDATDIR)|=(1<<(DISP_DATA+8))|(1<<(DISP_CLK+8))|(1<<(DISP_EN+8))|(1<<DISP_DATA);		 
	(*PCDATDIR)&=~((1<<DISP_CLK)|(1<<DISP_EN));		 			 
}


void Display(unsigned int content)
{	 
	unsigned char i;
	(*PCDATDIR)&=~(1<<DISP_EN);
	for (i=0;i<=15;i++)				 			 //Send the number by serial
		{
			(*PCDATDIR)&=~(1<<DISP_CLK);
			if(content&0x0001)
				(*PCDATDIR)|=1<<DISP_DATA;
				
			else
			 	(*PCDATDIR)&=~(1<<DISP_DATA);
			content>>=1;
			
			(*PCDATDIR)|=1<<DISP_CLK;
		}
	(*PCDATDIR)|=1<<DISP_EN;
}