133 lines
3.1 KiB
C
133 lines
3.1 KiB
C
#include <stdint.h>
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#include <stdio.h>
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// #include <arm_math.h>
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#include "main.h"
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#include "rx.h"
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#include "tx.h"
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/*
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#define TX_TYPE_NONE 0
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#define TX_TYPE_DAC 1
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#define TX_TYPE_PWM 2
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#define TX_TYPE_SI5351 3
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// #define TX_TYPE TX_TYPE_SI5351
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#define TX_TYPE TX_TYPE_NONE
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*/
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#define IF_TYPE_NOIF 0 // la frequenza del dac o del dds e' pari alla frequenza impostata
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#define IF_TYPE_LOMIX 1
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#define IF_TYPE IF_TYPE_NOIF
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#define LO_TYPE_FIX 0
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#define LO_TYPE_SI5351 1
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#define LO_TYPE LO_TYPE_SI5351
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#define LO_TYPE_FIX_FREQ 0 // frequenza di LO
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#define CLOCK (168000000UL)
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/*
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// RX ADC
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#define ADC_CLOCK (700000L) // (168000000/((47,5+12,5)*4)
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#define ADC_OVERSAMPLING (2)
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#define ADC_SAMPLE_RATE (ADC_CLOCK/ADC_OVERSAMPLING)
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#define ADC_BUFFER_SIZE (1024)
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#define ADC_SAMPLES_BUFFER_RATE (ADC_SAMPLE_RATE/ADC_BUFFER_SIZE)
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*/
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/*
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// TX DAC
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#define TX_DAC_SAMPLE_RATE (CLOCK/480)
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#define TX_DAC_BUFFER_SIZE (1024)
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#define TX_DAC_BUFFER_RATE (TX_DAC_SAMPLE_RATE/TX_DAC_BUFFER_SIZE)
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*/
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#define MOD_DC 0
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#define MOD_LSB 1
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#define MOD_USB 2
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#define MOD_AM 3
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#define STATUS_RX 0
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#define STATUS_TX 1
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#define STATUS_SQ 2
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/*
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// === DAC ===
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#define RX_DAC_DIVISOR 7680
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#define RX_DAC_SAMPLE_RATE (CLOCK/RX_DAC_DIVISOR)
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*/
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// === UART ===
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#define RX_CMD_RB_SIZE (32)
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#define RX_CMD_RB_SIZE_MASK (RX_CMD_RB_SIZE - 1)
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#define UART_TX_BUFFER_SIZE (512)
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// ====== VARS ====================
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// state
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extern uint8_t receive, transmit;
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extern q31_t nco1_increment;
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extern uint32_t frequency;
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extern int32_t rit;
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extern uint16_t pwm_tx_period;
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extern int32_t modulation;
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extern int32_t gain;
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extern int32_t peak, oldpeak, peakset;
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extern int32_t volume;
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extern int32_t squelch;
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extern int32_t mic_gain;
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extern int32_t scan;
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extern uint32_t audio_filter_freq, audio_filter_bw, audio_filter_beta;
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extern uint16_t state_changed;
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extern char tabstring[15];
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extern CORDIC_HandleTypeDef hcordic;
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extern uint8_t s_meter;
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// uartz
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extern char uart_rx_buf[2], rx_cmd_rb[RX_CMD_RB_SIZE];
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extern uint8_t rx_cmd_rb_in_idx, rx_cmd_rb_out_idx;
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// uart tx
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extern char uart_tx_buf[UART_TX_BUFFER_SIZE];
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extern uint16_t uart_tx_buf_in_idx;
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// rx adc
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extern uint16_t adc_buffer[RX_ADC_BUFFER_SIZE];
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// tx dac
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extern q31_t tx_dac_buffer[2][TX_DAC_BUFFER_SIZE];
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extern volatile uint8_t half_tx_dac_buffer_empty, tx_dac_buffer_toggle;
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extern q31_t if_I[LF_BUFFER_SIZE];
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extern q31_t if_Q[LF_BUFFER_SIZE];
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// RX DAC
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extern uint8_t lf_buffer_toggle;
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extern q31_t prefilter_lf_buffer[LF_BUFFER_SIZE];
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extern q31_t lf_buffer[2][LF_BUFFER_SIZE];
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// extern q31_t lf_buffer_test[2][LF_BUFFER_SIZE];
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// ======== FUNZIONI ========
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int32_t set_nco1_freq(int32_t freq);
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void set_filter(void);
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void set_frequency(void);
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void set_modulation(void);
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void set_dummy (void);
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uint8_t get_changed(uint8_t state);
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// varie
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uint16_t ringbuf_increment(uint8_t *index, uint8_t buff_size_mask);
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q31_t sat_mult_q31(q31_t a, q31_t b);
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// diag
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void diag(void);
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uint32_t get_pwm_freq(uint16_t pwm_period);
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uint16_t get_pwm_period(uint32_t pwm_frequency);
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uint8_t measure_log_abs_mean(q31_t *samples, uint16_t size);
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