int main(void)
{
const uint32_t freq = 2441000000U;
pin_setup();
gpio_set(PORT_EN1V8, PIN_EN1V8); /* 1V8 on */
cpu_clock_init();
ssp1_init();
gpio_set(PORT_LED1_3, (PIN_LED1)); /* LED1 on */
ssp1_set_mode_max2837();
max2837_setup();
rffc5071_setup();
gpio_set(PORT_LED1_3, (PIN_LED2)); /* LED2 on */
max2837_set_frequency(freq);
max2837_start();
max2837_tx();
gpio_set(PORT_LED1_3, (PIN_LED3)); /* LED3 on */
while (1);
max2837_stop();
return 0;
}
bool set_freq_explicit(const uint64_t if_freq_hz, const uint64_t lo_freq_hz,
const rf_path_filter_t path)
{
if ((if_freq_hz < ((uint64_t)MIN_BYPASS_FREQ_MHZ * FREQ_ONE_MHZ))
|| (if_freq_hz > ((uint64_t)MAX_BYPASS_FREQ_MHZ * FREQ_ONE_MHZ))) {
return false;
}
if ((path != RF_PATH_FILTER_BYPASS) &&
((lo_freq_hz < MIN_LO_FREQ_HZ) || (lo_freq_hz > MAX_LO_FREQ_HZ))) {
return false;
}
if (path > 2) {
return false;
}
rf_path_set_filter(&rf_path, path);
max2837_set_frequency(&max2837, if_freq_hz);
if (lo_freq_hz > if_freq_hz) {
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 1);
} else {
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
}
if (path != RF_PATH_FILTER_BYPASS) {
(void)mixer_set_frequency(&mixer, lo_freq_hz / FREQ_ONE_MHZ);
}
return true;
}
/*
* Set freq/tuning between 0MHz to 7250 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(const uint64_t freq)
{
bool success;
uint32_t mixer_freq_mhz;
uint32_t MAX2837_freq_hz;
uint64_t real_mixer_freq_hz;
const uint32_t freq_mhz = freq / 1000000;
const uint32_t freq_hz = freq % 1000000;
success = true;
const max2837_mode_t prior_max2837_mode = max2837_mode(&max2837);
max2837_set_mode(&max2837, MAX2837_MODE_STANDBY);
if(freq_mhz < MAX_LP_FREQ_MHZ)
{
rf_path_set_filter(&rf_path, RF_PATH_FILTER_LOW_PASS);
#ifdef RAD1O
max2837_freq_nominal_hz = 2300000000;
#else
/* IF is graduated from 2650 MHz to 2343 MHz */
max2837_freq_nominal_hz = 2650000000 - (freq / 7);
#endif
mixer_freq_mhz = (max2837_freq_nominal_hz / FREQ_ONE_MHZ) + freq_mhz;
/* Set Freq and read real freq */
real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
max2837_set_frequency(&max2837, real_mixer_freq_hz - freq);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 1);
}else if( (freq_mhz >= MIN_BYPASS_FREQ_MHZ) && (freq_mhz < MAX_BYPASS_FREQ_MHZ) )
{
rf_path_set_filter(&rf_path, RF_PATH_FILTER_BYPASS);
MAX2837_freq_hz = (freq_mhz * FREQ_ONE_MHZ) + freq_hz;
/* mixer_freq_mhz <= not used in Bypass mode */
max2837_set_frequency(&max2837, MAX2837_freq_hz);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
}else if( (freq_mhz >= MIN_HP_FREQ_MHZ) && (freq_mhz <= MAX_HP_FREQ_MHZ) )
{
if (freq_mhz < MID1_HP_FREQ_MHZ) {
/* IF is graduated from 2150 MHz to 2750 MHz */
max2837_freq_nominal_hz = 2150000000 + (((freq - 2750000000) * 60) / 85);
} else if (freq_mhz < MID2_HP_FREQ_MHZ) {
/* IF is graduated from 2350 MHz to 2650 MHz */
max2837_freq_nominal_hz = 2350000000 + ((freq - 3600000000) / 5);
} else {
/* IF is graduated from 2500 MHz to 2738 MHz */
max2837_freq_nominal_hz = 2500000000 + ((freq - 5100000000) / 9);
}
rf_path_set_filter(&rf_path, RF_PATH_FILTER_HIGH_PASS);
mixer_freq_mhz = freq_mhz - (max2837_freq_nominal_hz / FREQ_ONE_MHZ);
/* Set Freq and read real freq */
real_mixer_freq_hz = mixer_set_frequency(&mixer, mixer_freq_mhz);
max2837_set_frequency(&max2837, freq - real_mixer_freq_hz);
sgpio_cpld_stream_rx_set_q_invert(&sgpio_config, 0);
}else
{
/* Error freq_mhz too high */
success = false;
}
max2837_set_mode(&max2837, prior_max2837_mode);
if( success ) {
freq_cache = freq;
hackrf_ui_setFrequency(freq);
}
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_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;
}
