diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/fl2k_ampliphase.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/fl2k_ampliphase.c b/src/fl2k_ampliphase.c index 76211c0..e532a6c 100644 --- a/src/fl2k_ampliphase.c +++ b/src/fl2k_ampliphase.c @@ -233,12 +233,12 @@ dds_t dds_init(float sample_freq, float freq, float phase, float amp, enum wavef static inline void dds_complex(dds_t *dds, int8_t * i, int8_t * q) { - int pi_i, pi_q; + int phase_idx_i, phase_idx_q; int32_t amp_i, amp_q; // get current carrier phase, add phase mod, calculate table index - pi_i = (dds->phase - dds->phase_delta) >> TRIG_TABLE_SHIFT; - pi_q = (dds->phase + dds->phase_delta) >> TRIG_TABLE_SHIFT; + phase_idx_i = (dds->phase - dds->phase_delta) >> TRIG_TABLE_SHIFT; + phase_idx_q = (dds->phase + dds->phase_delta) >> TRIG_TABLE_SHIFT; // advance dds generator dds->phase += dds->phase_step; @@ -249,8 +249,8 @@ static inline void dds_complex(dds_t *dds, int8_t * i, int8_t * q) amp_i = (int32_t) (creal(dds->amplitude) * 32767.0); // 0..15 amp_q = (int32_t) (cimag(dds->amplitude) * 32767.0); - amp_i = amp_i * trig_table.inphase[pi_i]; // 0..31 - amp_q = amp_q * trig_table.quadrature[pi_q]; // 0..31 + amp_i = amp_i * trig_table.inphase[phase_idx_i]; // 0..31 + amp_q = amp_q * trig_table.quadrature[phase_idx_q]; // 0..31 *i = (int8_t) (amp_i >> 24); // 0..31 >> 24 => 0..8 *q = (int8_t) (amp_q >> 24); // 0..31 >> 24 => 0..8 @@ -305,7 +305,7 @@ static void *iq_worker(void *arg) /* swap buffers */ tmp_ptr = iambuf; iambuf = itxbuf; - itxbuf = tmp_ptr; + itxbuf = tmp_ptr; tmp_ptr = qambuf; qambuf = qtxbuf; |