42 lines
849 B
C
42 lines
849 B
C
#ifndef __SI5351_H__
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#define __SI5351_H__ __SI5351_H__
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#include <stdint.h>
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#include "twi.h"
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static const uint8_t SI5351_ADDRESS = 96;
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enum si5351_param_base {
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PLL_A = 26,
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PLL_B = 34,
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MULTISYNTH_0 = 42,
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MULTOSYNTH_1 = 50,
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MULTISYNTH_2 = 58
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};
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enum si5351_reg {
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CLK_ENABLE_CONTROL = 3,
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PLLX_SRC = 15,
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CLK0_CONTROL = 16,
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CLK1_CONTROL = 17,
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CLK2_CONTROL = 18,
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PLL_RESET = 177,
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XTAL_LOAD_CAP = 183
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};
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static inline uint8_t si5351_write8(uint8_t reg, uint8_t value) {
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uint8_t data[3] = {reg, value};
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return twi_write(SI5351_ADDRESS, data, 2);
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}
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void si5351_init(uint32_t freq_xtal, uint32_t freq_a, uint32_t freq_b);
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void si5351_set_freq(enum si5351_param_base base, uint32_t freq);
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uint8_t si5351_write_params(enum si5351_param_base base, uint32_t p1, uint32_t p2, uint32_t p3);
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#endif
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