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Frequency stepping using the uint32_t type is better than the float type.

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hugen 2019-10-12 10:16:15 +08:00
parent 0e982aa834
commit c246209d34
1 changed files with 3 additions and 3 deletions
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6
main.c
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@ -767,10 +767,10 @@ void
set_frequencies(uint32_t start, uint32_t stop, int16_t points) set_frequencies(uint32_t start, uint32_t stop, int16_t points)
{ {
int i; int i;
float span = stop - start; uint32_t span = stop - start;
for (i = 0; i < points; i++) { for (i = 0; i < points; i++) {
float offset = i * span / (float)(points - 1); uint32_t offset = i * (span / (points - 1));
frequencies[i] = start + (uint32_t)offset; frequencies[i] = start + offset;
} }
// disable at out of sweep range // disable at out of sweep range
for (; i < sweep_points; i++) for (; i < sweep_points; i++)