/*
* Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used)
* hz between 0 to 999999 Hz (not checked)
* return false on error or true if success.
*/
bool set_freq(uint32_t freq_mhz, uint32_t freq_hz)
{
bool success;
uint32_t RFFC5071_freq_mhz;
uint32_t MAX2837_freq_hz;
uint32_t real_RFFC5071_freq_hz;
uint32_t tmp_hz;
success = true;
gpio_clear(PORT_XCVR_ENABLE, (PIN_XCVR_RXENABLE | PIN_XCVR_TXENABLE));
if(freq_mhz >= MIN_LP_FREQ_MHZ)
{
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = -(RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = (real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
switchctrl |= SWITCHCTRL_MIX_BYPASS;
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* RFFC5071_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) )
{
switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
switchctrl |= SWITCHCTRL_HP;
RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ;
/* Set Freq and read real freq */
real_RFFC5071_freq_hz = rffc5071_set_frequency(RFFC5071_freq_mhz);
if(real_RFFC5071_freq_hz < RFFC5071_freq_mhz * FREQ_ONE_MHZ)
{
tmp_hz = (RFFC5071_freq_mhz * FREQ_ONE_MHZ - real_RFFC5071_freq_hz);
}else
{
tmp_hz = -(real_RFFC5071_freq_hz - RFFC5071_freq_mhz * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else
{
/* Error freq_mhz too high */
success = false;
}
}else
{
/* Error freq_mhz too low */
success = false;
}
if(transceiver_mode == TRANSCEIVER_MODE_RX)
gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_RXENABLE);
else if(transceiver_mode == TRANSCEIVER_MODE_TX)
gpio_set(PORT_XCVR_ENABLE, PIN_XCVR_TXENABLE);
freq_mhz_cache = freq_mhz;
freq_hz_cache = freq_hz;
return success;
}
/*
* Set freq/tuning between 5MHz to 6800 MHz (less than 16bits really used)
* hz between 0 to 999999 Hz (not checked)
* return false on error or true if success.
*/
bool set_freq(uint32_t freq_mhz, uint32_t freq_hz)
{
bool success;
uint32_t RFFC5071_freq_mhz;
uint32_t MAX2837_freq_hz;
uint32_t real_RFFC5071_freq_mhz;
uint32_t tmp_hz;
success = true;
if(freq_mhz >= MIN_LP_FREQ_MHZ)
{
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
switchctrl &= ~(SWITCHCTRL_HP | SWITCHCTRL_MIX_BYPASS);
RFFC5071_freq_mhz = MAX2837_FREQ_NOMINAL_MHZ - freq_mhz;
/* Set Freq and read real freq */
real_RFFC5071_freq_mhz = rffc5071_set_frequency(RFFC5071_freq_mhz, 0);
if(real_RFFC5071_freq_mhz < RFFC5071_freq_mhz)
{
tmp_hz = -((RFFC5071_freq_mhz - real_RFFC5071_freq_mhz) * FREQ_ONE_MHZ);
}else
{
tmp_hz = ((real_RFFC5071_freq_mhz - RFFC5071_freq_mhz) * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
switchctrl |= SWITCHCTRL_MIX_BYPASS;
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* RFFC5071_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz < MAX_HP_FREQ_MHZ) )
{
switchctrl &= ~SWITCHCTRL_MIX_BYPASS;
switchctrl |= SWITCHCTRL_HP;
RFFC5071_freq_mhz = freq_mhz - MAX2837_FREQ_NOMINAL_MHZ;
/* Set Freq and read real freq */
real_RFFC5071_freq_mhz = rffc5071_set_frequency(RFFC5071_freq_mhz, 0);
if(real_RFFC5071_freq_mhz < RFFC5071_freq_mhz)
{
tmp_hz = ((RFFC5071_freq_mhz - real_RFFC5071_freq_mhz) * FREQ_ONE_MHZ);
}else
{
tmp_hz = -((real_RFFC5071_freq_mhz - RFFC5071_freq_mhz) * FREQ_ONE_MHZ);
}
MAX2837_freq_hz = MAX2837_FREQ_NOMINAL_HZ + tmp_hz + freq_hz;
max2837_set_frequency(MAX2837_freq_hz);
update_switches();
}else
{
/* Error freq_mhz too high */
success = false;
}
}else
{
/* Error freq_mhz too low */
success = false;
}
return success;
}
