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| author | Felix Erckenbrecht <dg1yfe@stus-disco.de> | 2022-03-25 14:24:38 +0100 |
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| committer | Felix Erckenbrecht <dg1yfe@stus-disco.de> | 2022-03-25 14:24:38 +0100 |
| commit | e346c8422cebf8e4c4e161aef5c4a57bf7dfc26f (patch) | |
| tree | 0d4996745eb43f227f0a4d8c6ed2a619a98efc8d | |
| parent | 5de0b5918f83382b81becdaa2fff496b46570a3e (diff) | |
| download | osmo-fl2k-e346c8422cebf8e4c4e161aef5c4a57bf7dfc26f.tar.gz osmo-fl2k-e346c8422cebf8e4c4e161aef5c4a57bf7dfc26f.tar.bz2 osmo-fl2k-e346c8422cebf8e4c4e161aef5c4a57bf7dfc26f.zip | |
Rename variables to not confuse them with Pi (the 3.141... number)
| -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; |