datainput.c

TMS320LF2407驱动max7219程序,用于显示,可采用编码和无编码两种方式

#include <stdio.h> 
#include <math.h>
void main()
{
int i;
double f[256];
FILE *fp;
if((fp=fopen("datain.inc","wt"))==NULL)
    {  
	printf("can't open the file! \n");
	return;
	}
	for(i=0;i<=256;i++)
	{
	f[i]=sin(2*3.14159*i*50/2000);
	fprintf(fp,"              .word              %ld\n",(long)(f[i]*32768));
	}
    fclose(fp);
}