In order to generate sine tabs for stepper motors

sine.c

/*
   Compile: gcc -o sine sine.c -lm -Wall
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <math.h>

#define PI 3.14159265

int main ()
{
   uint16_t i = 256; // number of steps in the sin_tab. Use 4, 8, 16, 32, 64, 128 or 256
   uint8_t max = 255; // amplitude (in case of tmc2130, set to 248)

   // no need to change anything from here
   uint16_t angle = 0;
   int16_t curA, curB;
   uint32_t sin_tab[2*i];
   uint16_t j=0;

   angle=0;
   while ( angle < 360 ) {
     printf("Angle = %3u: ", angle);
     curA = (int16_t)(max*sin(angle*(PI/180)));
     curB = (int16_t)(max*cos(angle*(PI/180)));
     printf("cA= %4d, cB = %4d", curA, curB);
     if ( curA < 0 ) { curA = ( curA ^ 0xff00 ) | 0x0100 ; }
     if ( curB < 0 ) { curB = ( curB ^ 0xff00 ) | 0x0100 ; }
     angle += ( 360 / i );
     sin_tab[j] = ( curA << 16 ) | curB;
     printf("  0x%08x\n", sin_tab[j]);
     j++;
   }

   printf("const uint32_t sin_tab%d[%d] = {\n", i, i);
   for ( j=0; j<i; j++ ) {
     printf("  0x%08x", sin_tab[j]);
     ( j < ( i -1 ) )  ? printf(", \n") : printf("\n};\n");
   };

   return 0;
}