a0fd2905b64b001a1a43927b7d2a9ae3

利用带有I2C总线接口的日历时钟芯片DS1337

#include "sin_3.h"
#include "math.h"

int main (void) __attribute__ ((weak, alias ("alt_main")));
int alt_main (void)
  {

  unsigned char tab[64];
  unsigned char i;
  float x;
IOWR_ALTERA_AVALON_PIO_DATA(PIO_LED_BASE,0x0a);

for(i=0;i<64;i++)
 tab[i]=sin(i*3.14159/32)+0.1*sin(i*2*3.14159/32)+0.01*sin(i*3*3.14159/32);
while(1)//????
    for(i=0;i<64;i++)Tlc5620_Out(tab[i],0x00,0x00);
}