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nzasch
2021-07-02 22:19:04 +02:00
parent 4e96b2c1f0
commit 2c600301a2
3364 changed files with 2027192 additions and 0 deletions
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27
codice/Core/Inc/tx.h Normal file
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#ifndef __TX_H
#define __TX_H
#include <stdint.h>
#include <arm_math.h>
#define TX_AUDIO_FILTER_INTERPOLATION_FACTOR (16)
#define TX_AUDIO_FILTER_BLOCK_SIZE (1024)
#define TX_AUDIO_FILTER_TAP_NUM (128)
// buffer
extern volatile uint8_t half_tx_dac_buffer_empty, tx_dac_buffer_toggle;
extern volatile uint8_t tx_adc_buffer_ready;
// filtro audio
extern arm_fir_instance_q31 tx_audio_filter_I_struct, tx_audio_filter_Q_struct;
extern q31_t tx_audio_filter_I_state[TX_AUDIO_FILTER_BLOCK_SIZE + TX_AUDIO_FILTER_TAP_NUM - 1];
extern q31_t tx_audio_filter_Q_state[TX_AUDIO_FILTER_BLOCK_SIZE + TX_AUDIO_FILTER_TAP_NUM - 1];
extern int32_t tx_audio_filter_coeffs[TX_AUDIO_FILTER_TAP_NUM];
// modulatori
void ssb_modulator(q31_t *in_I, q31_t *in_Q, uint16_t size, q31_t *out, q31_t nco_freq);
void dc_modulator(q31_t *in, uint16_t size, q31_t *out);
void am_modulator(q31_t *in_I, q31_t *in_Q, uint16_t size, q31_t *out);
#endif