Example(I2S): Fixed I2S example sine wave sample calculation incorrect bug.
closes
@@ -40,7 +40,7 @@ static void setup_triangle_sine_waves(int bits)
triangle_float = -(pow(2, bits)/2 - 1);
for(i = 0; i < SAMPLE_PER_CYCLE; i++) {
- sin_float = sin(i * PI / 180.0);
+ sin_float = sin(i * 2 * PI / SAMPLE_PER_CYCLE);
if(sin_float >= 0)
triangle_float += triangle_step;
else
@@ -77,6 +77,7 @@ static void setup_triangle_sine_waves(int bits)
free(samples_data);
}
+
void app_main(void)
{
//for 36Khz sample rates, we create 100Hz sine wave, every cycle need 36000/100 = 360 samples (4-bytes or 8-bytes each sample)
