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jLynx 2023-05-19 08:16:05 +12:00 • committed by GitHub
parent 7aca7ce74d
commit 033c4e9a5b
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599 changed files with 70746 additions and 66896 deletions
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104
firmware/application/hw/si5351.cpp
View file

@ -29,77 +29,71 @@
namespace si5351 {
void Si5351::reset() {
wait_for_device_ready();
wait_for_device_ready();
write_register(Register::InterruptStatusSticky, 0x00);
write_register(Register::InterruptStatusMask, 0xf0);
write_register(Register::InterruptStatusSticky, 0x00);
write_register(Register::InterruptStatusMask, 0xf0);
disable_output_mask(0xff);
write_register(Register::OEBPinEnableControlMask, 0xff);
write_register(Register::PLLInputSource, 0x00);
disable_output_mask(0xff);
write_register(Register::OEBPinEnableControlMask, 0xff);
write_register(Register::PLLInputSource, 0x00);
set_clock_control({
ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off()
});
set_clock_control({ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off(),
ClockControl::power_off(), ClockControl::power_off()});
write(std::array<uint8_t, 70> { Register::CLK3_0DisableState });
write(std::array<uint8_t, 70>{Register::CLK3_0DisableState});
write(std::array<uint8_t, 14>{
Register::SpreadSpectrumParameters_Base
});
write(std::array<uint8_t, 14>{
Register::SpreadSpectrumParameters_Base});
write(std::array<uint8_t, 4>{
Register::VCXOParameters_Base
});
write(std::array<uint8_t, 4>{
Register::VCXOParameters_Base});
write(std::array<uint8_t, 7>{
Register::CLKInitialPhaseOffset_Base
});
write(std::array<uint8_t, 7>{
Register::CLKInitialPhaseOffset_Base});
write_register(Register::CrystalInternalLoadCapacitance, 0b11010010);
write_register(Register::FanoutEnable, 0x00);
write_register(Register::CrystalInternalLoadCapacitance, 0b11010010);
write_register(Register::FanoutEnable, 0x00);
reset_plls();
reset_plls();
}
Si5351::regvalue_t Si5351::read_register(const uint8_t reg) {
const std::array<uint8_t, 1> tx { reg };
std::array<uint8_t, 1> rx { 0x00 };
_bus.transmit(_address, tx.data(), tx.size());
_bus.receive(_address, rx.data(), rx.size());
return rx[0];
const std::array<uint8_t, 1> tx{reg};
std::array<uint8_t, 1> rx{0x00};
_bus.transmit(_address, tx.data(), tx.size());
_bus.receive(_address, rx.data(), rx.size());
return rx[0];
}
void Si5351::set_ms_frequency(
const size_t ms_number,
const uint32_t frequency,
const uint32_t vco_frequency,
const size_t r_div
) {
/* TODO: Factor out the VCO frequency, which should be an attribute held
* by the Si5351 object.
*/
const uint32_t a = vco_frequency / frequency;
const uint32_t remainder = vco_frequency - (frequency * a);
const uint32_t denom = gcd(remainder, frequency);
const uint32_t b = remainder / denom;
const uint32_t c = frequency / denom;
const size_t ms_number,
const uint32_t frequency,
const uint32_t vco_frequency,
const size_t r_div) {
/* TODO: Factor out the VCO frequency, which should be an attribute held
* by the Si5351 object.
*/
const uint32_t a = vco_frequency / frequency;
const uint32_t remainder = vco_frequency - (frequency * a);
const uint32_t denom = gcd(remainder, frequency);
const uint32_t b = remainder / denom;
const uint32_t c = frequency / denom;
/* TODO: Switch between integer and fractional modes depending on the
* values of a and b.
*/
const MultisynthFractional ms {
.f_src = vco_frequency,
.a = a,
.b = b,
.c = c,
.r_div = r_div,
};
const auto regs = ms.reg(ms_number);
write(regs);
/* TODO: Switch between integer and fractional modes depending on the
* values of a and b.
*/
const MultisynthFractional ms{
.f_src = vco_frequency,
.a = a,
.b = b,
.c = c,
.r_div = r_div,
};
const auto regs = ms.reg(ms_number);
write(regs);
}
} /* namespace si5351 */