#include "stdio.h"
#include "stdlib.h"
void switch_value(int * acc_value, double * target_value)
{
short lsb_high_4,msb, msb_lsb;
int * ptr = acc_value;
double * ptr1 = target_value;
printf("acc_value = %d\n", *ptr);
lsb_high_4 = *ptr & 0x00f0;
printf("lsb_high_4 = %d\n", lsb_high_4);
msb = *ptr & 0xff00;
printf("msb = %d\n", msb);
msb_lsb = msb >> 4 | lsb_high_4 >> 4;
printf("msb_lsb = %d\n", msb_lsb);
*ptr1 = (double)msb_lsb/1024;
printf("ptr1 = %f\n", *ptr1);
return;
}
int switch_acc_to_g(int * src_value, double * target_value)
{
int * ptr1 = src_value;
double * ptr2 = target_value;
printf("================xxxxxxxxxxxxx==================\n");
switch_value(ptr1, ptr2);
printf("acc_x = %.2f\n", *ptr2);
printf("================yyyyyyyyyyyyy==================\n");
switch_value(ptr1+1, ptr2+1);
printf("acc_y = %.2f\n", *(ptr2+1));
printf("================zzzzzzzzzzzzz==================\n");
switch_value(ptr1+2, ptr2+2);
printf("acc_z = %.2f\n", *(ptr2+2));
}
void main()
{
int acc_value[3] = {32767, 32767, 32767};
double target_value[3] = {};
switch_acc_to_g(acc_value, target_value);
printf("acc_x = %.2f acc_y = %.2f acc_z = %.2f\n", target_value[0],target_value[1],target_value[2]);
return;
}
