C++ (Cpp) DAC_DDS_INCR Exemples

Exemple #1

Fichier : dac_core.c Projet : BrahamGitHub/no-OS

/***************************************************************************//**
 * @brief dds_set_frequency
*******************************************************************************/
void dds_set_frequency(struct ad9361_rf_phy *phy, uint32_t chan, uint32_t freq)
{
	uint64_t val64;
	uint32_t reg;

	dds_st[phy->id_no].cached_freq[chan] = freq;
	dac_stop(phy);
	dac_read(phy, DAC_REG_CHAN_CNTRL_2_IIOCHAN(chan), &reg);
	reg &= ~DAC_DDS_INCR(~0);
	val64 = (uint64_t) freq * 0xFFFFULL;
	do_div(&val64, *dds_st[phy->id_no].dac_clk);
	reg |= DAC_DDS_INCR(val64) | 1;
	dac_write(phy, DAC_REG_CHAN_CNTRL_2_IIOCHAN(chan), reg);
	dac_start_sync(phy, 0);
}

Exemple #2

Fichier : dac_core.c Projet : DenisKuzovin/no-OS

int32_t dds_set_frequency(dac_core *core,
						  uint32_t chan,
						  uint32_t freq)
{
	uint64_t val64;
	uint32_t reg;

	dac_write(core, DAC_REG_SYNC_CONTROL, 0);
	dac_read(core, DAC_REG_DDS_INIT_INCR(chan), &reg);
	val64 = (uint64_t) freq * 0xFFFFULL;
	val64 = val64 / core->clock;
	reg = (reg & ~DAC_DDS_INCR(~0)) | DAC_DDS_INCR(val64) | 1;
	dac_write(core, DAC_REG_DDS_INIT_INCR(chan), reg);
	dac_write(core, DAC_REG_SYNC_CONTROL, DAC_SYNC);

	return 0;
}

Exemple #3

Fichier : dac_core.c Projet : 363546178/no-OS

/***************************************************************************//**
 * @brief dds_set_frequency
*******************************************************************************/
int32_t dds_set_frequency(uint32_t chan, uint32_t freq)
{
	uint32_t pcore_version;
	uint32_t val;
	uint64_t val64;
	uint32_t reg;
	uint64_t dac_clk;

	dac_read(DAC_REG_CLK_FREQ, &val);
	dac_clk = val;
	dac_read(DAC_REG_CLK_RATIO, &val);
	dac_clk *= val * 1525;

	dac_read(DAC_REG_VERSION, &pcore_version);

	if(DAC_PCORE_VERSION_MAJOR(pcore_version) < 8)
	{
		dac_write(DAC_REG_CNTRL_1, 0);
	}

	dac_read(DAC_REG_CHAN_CNTRL_2_IIOCHAN(chan), &reg);
	reg &= ~DAC_DDS_INCR(~0);
	val64 = (uint64_t) freq * 0xFFFFULL;
	val64 = val64 / dac_clk;
	reg |= DAC_DDS_INCR(val64) | 1;
	dac_write(DAC_REG_CHAN_CNTRL_2_IIOCHAN(chan), reg);

	if(DAC_PCORE_VERSION_MAJOR(pcore_version) < 8)
	{
		dac_write(DAC_REG_CNTRL_1, DAC_ENABLE);
	}
	else
	{
		dac_write(DAC_REG_CNTRL_1, DAC_SYNC);
	}

	return 0;
}